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Statement List for Metamath Proof Explorer - 14001-14100 - Page 141 of 191
TypeLabelDescription
Statement
 
Theorembnj120 14001 First-order logic and set theory.
|- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- (ps' <-> [1o / n]ps)   =>   |- (ps' <-> A.i e. om (suc i e. 1o -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))
 
Theorembnj121 14002 First-order logic and set theory.
|- (ze <-> ((R FrSe A /\ x e. A) -> (f Fn n /\ ph /\ ps)))   &   |- (ze' <-> [1o / n]ze)   &   |- (ph' <-> [1o / n]ph)   &   |- (ps' <-> [1o / n]ps)   =>   |- (ze' <-> ((R FrSe A /\ x e. A) -> (f Fn 1o /\ ph' /\ ps')))
 
Theorembnj122 14003 First-order logic and set theory.
|- (th' <-> E!f((R FrSe A /\ x e. A) -> (f Fn 1o /\ ph' /\ ps')))   &   |- (ze' <-> ((R FrSe A /\ x e. A) -> (f Fn 1o /\ ph' /\ ps')))   =>   |- (th' <-> E!fze')
 
Theorembnj123 14004 Technical lemma of bnj150 14013. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- F = {<.(/), pred(x, A, R)>.}   &   |- (ze" <-> [F / f]ze')   =>   |- (ze" -> E.fze')
 
Theorembnj124 14005 Technical lemma of bnj150 14013. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- F = {<.(/), pred(x, A, R)>.}   &   |- (ph" <-> [F / f]ph')   &   |- (ps" <-> [F / f]ps')   &   |- (ze" <-> [F / f]ze')   &   |- (ze' <-> ((R FrSe A /\ x e. A) -> (f Fn 1o /\ ph' /\ ps')))   =>   |- (ze" <-> ((R FrSe A /\ x e. A) -> (F Fn 1o /\ ph" /\ ps")))
 
Theorembnj125 14006 Technical lemma of bnj150 14013. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(x, A, R))   &   |- (ph' <-> [1o / n]ph)   &   |- (ph" <-> [F / f]ph')   &   |- F = {<.(/), pred(x, A, R)>.}   =>   |- (ph" <-> (F` (/)) = pred(x, A, R))
 
Theorembnj126 14007 Technical lemma of bnj150 14013. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- (ps' <-> [1o / n]ps)   &   |- (ps" <-> [F / f]ps')   &   |- F = {<.(/), pred(x, A, R)>.}   =>   |- (ps" <-> A.i e. om (suc i e. 1o -> (F` suc i) = U_y e. (F` i) pred(y, A, R)))
 
Theorembnj127 14008 Technical lemma of bnj150 14013. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- F = {<.(/), pred(x, A, R)>.}   &   |- (ph" <-> (F` (/)) = pred(x, A, R))   =>   |- ((R FrSe A /\ x e. A) -> ph")
 
Theorembnj128 14009 Technical lemma of bnj150 14013. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ps" <-> A.i e. om (suc i e. 1o -> (F` suc i) = U_y e. (F` i) pred(y, A, R)))   =>   |- ps"
 
Theorembnj129 14010 Technical lemma of bnj150 14013. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ze" <-> ((R FrSe A /\ x e. A) -> (F Fn 1o /\ ph" /\ ps")))   &   |- ((R FrSe A /\ x e. A) -> F Fn 1o)   &   |- ((R FrSe A /\ x e. A) -> ph")   &   |- ps"   =>   |- ze"
 
Theorembnj130 14011 Technical lemma of bnj151 14014. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (th <-> ((R FrSe A /\ x e. A) -> E!f(f Fn n /\ ph /\ ps)))   &   |- (ph' <-> [1o / n]ph)   &   |- (ps' <-> [1o / n]ps)   &   |- (th' <-> [1o / n]th)   =>   |- (th' <-> ((R FrSe A /\ x e. A) -> E!f(f Fn 1o /\ ph' /\ ps')))
 
Theorembnj149 14012 Technical lemma of bnj151 14014. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (th1 <-> ((R FrSe A /\ x e. A) -> E*f(f Fn 1o /\ ph' /\ ps')))   &   |- (ze0 <-> (f Fn 1o /\ ph' /\ ps'))   &   |- (ze1 <-> [g / f]ze0)   &   |- (ph1 <-> [g / f]ph')   &   |- (ps1 <-> [g / f]ps')   &   |- (ph' <-> (f` (/)) = pred(x, A, R))   =>   |- th1
 
Theorembnj150 14013 Technical lemma of bnj151 14014. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(x, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- (ze <-> ((R FrSe A /\ x e. A) -> (f Fn n /\ ph /\ ps)))   &   |- (ph' <-> [1o / n]ph)   &   |- (ps' <-> [1o / n]ps)   &   |- (th0 <-> ((R FrSe A /\ x e. A) -> E.f(f Fn 1o /\ ph' /\ ps')))   &   |- (ze' <-> [1o / n]ze)   &   |- F = {<.(/), pred(x, A, R)>.}   &   |- (ph" <-> [F / f]ph')   &   |- (ps" <-> [F / f]ps')   &   |- (ze" <-> [F / f]ze')   =>   |- th0
 
Theorembnj151 14014 Technical lemma of bnj152 14015. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(x, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   &   |- (th <-> ((R FrSe A /\ x e. A) -> E!f(f Fn n /\ ph /\ ps)))   &   |- (ta <-> A.m e. D (m _E n -> [m / n]th))   &   |- (ze <-> ((R FrSe A /\ x e. A) -> (f Fn n /\ ph /\ ps)))   &   |- (ph' <-> [1o / n]ph)   &   |- (ps' <-> [1o / n]ps)   &   |- (th' <-> [1o / n]th)   &   |- (th0 <-> ((R FrSe A /\ x e. A) -> E.f(f Fn 1o /\ ph' /\ ps')))   &   |- (th1 <-> ((R FrSe A /\ x e. A) -> E*f(f Fn 1o /\ ph' /\ ps')))   &   |- (ze' <-> [1o / n]ze)   &   |- F = {<.(/), pred(x, A, R)>.}   &   |- (ph" <-> [F / f]ph')   &   |- (ps" <-> [F / f]ps')   &   |- (ze" <-> [F / f]ze')   &   |- (ze0 <-> (f Fn 1o /\ ph' /\ ps'))   &   |- (ze1 <-> [g / f]ze0)   &   |- (ph1 <-> [g / f]ph')   &   |- (ps1 <-> [g / f]ps')   =>   |- (n = 1o -> ((n e. D /\ ta) -> th))
 
Theorembnj152 14015 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(x, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   &   |- (th <-> ((R FrSe A /\ x e. A) -> E!f(f Fn n /\ ph /\ ps)))   &   |- (ta <-> A.m e. D (m _E n -> [m / n]th))   &   |- (ze <-> ((R FrSe A /\ x e. A) -> (f Fn n /\ ph /\ ps)))   &   |- (ph' <-> [1o / n]ph)   &   |- (ps' <-> [1o / n]ps)   &   |- (th' <-> [1o / n]th)   &   |- (th0 <-> ((R FrSe A /\ x e. A) -> E.f(f Fn 1o /\ ph' /\ ps')))   &   |- (th1 <-> ((R FrSe A /\ x e. A) -> E*f(f Fn 1o /\ ph' /\ ps')))   &   |- (ze' <-> [1o / n]ze)   &   |- F = {<.(/), pred(x, A, R)>.}   &   |- (ph" <-> [F / f]ph')   &   |- (ps" <-> [F / f]ps')   &   |- (ze" <-> [F / f]ze')   &   |- (ze0 <-> (f Fn 1o /\ ph' /\ ps'))   &   |- (ze1 <-> [g / f]ze0)   &   |- (ph1 <-> [g / f]ph')   &   |- (ps1 <-> [g / f]ps')   =>   |- (n = 1o -> ((n e. D /\ ta) -> th))
 
Theorembnj154 14016 Technical lemma of bnj153 14018. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph1 <-> [g / f]ph')   &   |- (ph' <-> (f` (/)) = pred(x, A, R))   =>   |- (ph1 <-> (g` (/)) = pred(x, A, R))
 
Theorembnj155 14017 Technical lemma of bnj153 14018. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ps1 <-> [g / f]ps')   &   |- (ps' <-> A.i e. om (suc i e. 1o -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   =>   |- (ps1 <-> A.i e. om (suc i e. 1o -> (g` suc i) = U_y e. (g` i) pred(y, A, R)))
 
Theorembnj153 14018 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(x, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   &   |- (th <-> ((R FrSe A /\ x e. A) -> E!f(f Fn n /\ ph /\ ps)))   &   |- (ta <-> A.m e. D (m _E n -> [m / n]th))   =>   |- (n = 1o -> ((n e. D /\ ta) -> th))
 
Theorembnj207 14019 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ch <-> ((R FrSe A /\ x e. A) -> E!f(f Fn n /\ ph /\ ps)))   &   |- (ph' <-> [M / n]ph)   &   |- (ps' <-> [M / n]ps)   &   |- (ch' <-> [M / n]ch)   &   |- M e. _V   =>   |- (ch' <-> ((R FrSe A /\ x e. A) -> E!f(f Fn M /\ ph' /\ ps')))
 
Theorembnj213 14020 First-order logic and set theory.
|- pred(X, A, R) C_ A
 
Theorembnj218 14021 Technical lemma of bnj515 14027. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (F` (/)) = pred(X, A, R))   &   |- (ch <-> ((ph /\ ps) -> (F` n) C_ A))   =>   |- (n = (/) -> ((n e. N /\ th) -> ch))
 
Theorembnj222 14022 Technical lemma of bnj229 14024. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ps <-> A.i e. om (suc i e. N -> (F` suc i) = U_y e. (F` i) pred(y, A, R)))   =>   |- (ps <-> A.m e. om (suc m e. N -> (F` suc m) = U_y e. (F` m) pred(y, A, R)))
 
Theorembnj223 14023 Technical lemma of bnj229 14024. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (suc m = n -> ((suc m e. N -> (F` suc m) = U_y e. (F` m) pred(y, A, R)) <-> (n e. N -> (F` n) = U_y e. (F` m) pred(y, A, R))))
 
Theorembnj229 14024 Technical lemma of bnj513 14025. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ps <-> A.i e. om (suc i e. N -> (F` suc i) = U_y e. (F` i) pred(y, A, R)))   =>   |- ((n e. N /\ (suc m = n /\ m e. om /\ ps)) -> (F` n) C_ A)
 
Theorembnj513 14025 Technical lemma of bnj154 14016. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ps <-> A.i e. om (suc i e. N -> (F` suc i) = U_y e. (F` i) pred(y, A, R)))   &   |- (ch <-> ((ph /\ ps) -> (F` n) C_ A))   =>   |- ((m e. om /\ suc m = n /\ n e. N) -> ch)
 
Theorembnj514 14026 Technical lemma of bnj515 14027. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ps <-> A.i e. om (suc i e. N -> (F` suc i) = U_y e. (F` i) pred(y, A, R)))   &   |- N e. om   &   |- (ch <-> ((ph /\ ps) -> (F` n) C_ A))   =>   |- (n =/= (/) -> ((n e. N /\ th) -> ch))
 
Theorembnj515 14027 Technical lemma of bnj516 14028. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (F` (/)) = pred(X, A, R))   &   |- (ps <-> A.i e. om (suc i e. N -> (F` suc i) = U_y e. (F` i) pred(y, A, R)))   &   |- N e. om   &   |- (ch <-> ((ph /\ ps) -> (F` n) C_ A))   &   |- (th <-> A.m e. N (m _E n -> [m / n]ch))   =>   |- ((ph /\ ps) -> A.n e. N (F` n) C_ A)
 
Theorembnj516 14028 Technical lemma of bnj212 14029. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (F` (/)) = pred(X, A, R))   &   |- (ps <-> A.i e. om (suc i e. N -> (F` suc i) = U_y e. (F` i) pred(y, A, R)))   &   |- N e. om   =>   |- ((ph /\ ps) -> A.n e. N (F` n) C_ A)
 
Theorembnj212 14029 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (F` (/)) = pred(X, A, R))   &   |- (ps <-> A.i e. om (suc i e. N -> (F` suc i) = U_y e. (F` i) pred(y, A, R)))   &   |- N e. om   =>   |- ((ph /\ ps) -> A.n e. N (F` n) C_ A)
 
Theorembnj517 14030 Technical lemma of bnj518 14031. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (F` (/)) = pred(X, A, R))   &   |- (ps <-> A.i e. om (suc i e. N -> (F` suc i) = U_y e. (F` i) pred(y, A, R)))   =>   |- ((N e. om /\ ph /\ ps) -> A.n e. N (F` n) C_ A)
 
Theorembnj518 14031 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(x, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- (ta <-> (ph /\ ps /\ n e. om /\ p e. n))   =>   |- ((R FrSe A /\ ta) -> A.y e. (f` p) pred(y, A, R) e. _V)
 
Theorembnj522 14032 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(x, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- G = (f u. {<.m, U_y e. (f` p) pred(y, A, R)>.})   &   |- (ta <-> (ph /\ ps /\ n e. om /\ p e. n))   =>   |- ((R FrSe A /\ ta /\ n = (m u. {m}) /\ f Fn m) -> G Fn n)
 
Theorembnj523 14033 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (F` (/)) = pred(X, A, R))   &   |- (ph' <-> [M / n]ph)   &   |- M e. _V   =>   |- (ph' <-> (F` (/)) = pred(X, A, R))
 
Theorembnj526 14034 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(X, A, R))   &   |- (ph" <-> [G / f]ph)   &   |- G e. _V   =>   |- (ph" <-> (G` (/)) = pred(X, A, R))
 
Theorembnj528 14035 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- G = (f u. {<.m, U_y e. (f` p) pred(y, A, R)>.})   =>   |- G e. _V
 
Theorembnj535 14036 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph' <-> (f` (/)) = pred(x, A, R))   &   |- (ps' <-> A.i e. om (suc i e. m -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- G = (f u. {<.m, U_y e. (f` p) pred(y, A, R)>.})   &   |- (ta <-> (ph' /\ ps' /\ m e. om /\ p e. m))   =>   |- ((R FrSe A /\ ta /\ n = (m u. {m}) /\ f Fn m) -> G Fn n)
 
Theorembnj539 14037 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ps <-> A.i e. om (suc i e. n -> (F` suc i) = U_y e. (F` i) pred(y, A, R)))   &   |- (ps' <-> [M / n]ps)   &   |- M e. _V   =>   |- (ps' <-> A.i e. om (suc i e. M -> (F` suc i) = U_y e. (F` i) pred(y, A, R)))
 
Theorembnj540 14038 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ps <-> A.i e. om (suc i e. N -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- (ps" <-> [G / f]ps)   &   |- G e. _V   =>   |- (ps" <-> A.i e. om (suc i e. N -> (G` suc i) = U_y e. (G` i) pred(y, A, R)))
 
Theorembnj541 14039 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ch <-> ((R FrSe A /\ X e. A) -> E!f(f Fn N /\ ph /\ ps)))   &   |- (ch" <-> [G / f]ch)   &   |- G e. _V   =>   |- (ch" <-> ((R FrSe A /\ X e. A) -> E!f(f Fn N /\ ph /\ ps)))
 
Theorembnj543 14040 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph' <-> (f` (/)) = pred(x, A, R))   &   |- (ps' <-> A.i e. om (suc i e. m -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- G = (f u. {<.m, U_y e. (f` p) pred(y, A, R)>.})   &   |- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- (si <-> (m e. om /\ n = suc m /\ p e. m))   =>   |- ((R FrSe A /\ ta /\ si) -> G Fn n)
 
Theorembnj544 14041 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph' <-> (f` (/)) = pred(x, A, R))   &   |- (ps' <-> A.i e. om (suc i e. m -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   &   |- G = (f u. {<.m, U_y e. (f` p) pred(y, A, R)>.})   &   |- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- (si <-> (m e. D /\ n = suc m /\ p e. m))   =>   |- ((R FrSe A /\ ta /\ si) -> G Fn n)
 
Theorembnj545 14042 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph' <-> (f` (/)) = pred(x, A, R))   &   |- D = (om \ {(/)})   &   |- G = (f u. {<.m, U_y e. (f` p) pred(y, A, R)>.})   &   |- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- (si <-> (m e. D /\ n = suc m /\ p e. m))   &   |- ((R FrSe A /\ ta /\ si) -> G Fn n)   &   |- (ph" <-> (G` (/)) = pred(x, A, R))   =>   |- ((R FrSe A /\ ta /\ si) -> ph")
 
Theorembnj546 14043 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- D = (om \ {(/)})   &   |- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- (si <-> (m e. D /\ n = suc m /\ p e. m))   &   |- (ph' <-> (f` (/)) = pred(x, A, R))   &   |- (ps' <-> A.i e. om (suc i e. m -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   =>   |- ((R FrSe A /\ ta /\ si) -> U_y e. (f` p) pred(y, A, R) e. _V)
 
Theorembnj547 14044 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph' <-> (f` (/)) = pred(x, A, R))   &   |- (ps' <-> A.i e. om (suc i e. m -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   &   |- G = (f u. {<.m, U_y e. (f` p) pred(y, A, R)>.})   &   |- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- (si <-> (m e. D /\ n = suc m /\ p e. m))   &   |- C = U_y e. (f` p) pred(y, A, R)   &   |- G = (f u. {<.m, C>.})   =>   |- ((R FrSe A /\ ta /\ si) -> (G` m) = C)
 
Theorembnj548 14045 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- B = U_y e. (f` i) pred(y, A, R)   &   |- K = U_y e. (G` i) pred(y, A, R)   &   |- G = (f u. {<.m, C>.})   &   |- ((R FrSe A /\ ta /\ si) -> G Fn n)   =>   |- (((R FrSe A /\ ta /\ si) /\ i e. m) -> B = K)
 
Theorembnj549 14046 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- B = U_y e. (f` i) pred(y, A, R)   &   |- C = U_y e. (f` p) pred(y, A, R)   =>   |- (p = i -> B = C)
 
Theorembnj550 14047 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- K = U_y e. (G` i) pred(y, A, R)   &   |- L = U_y e. (G` p) pred(y, A, R)   =>   |- ((m = suc i /\ p = i) -> ((G` m) = L <-> (G` suc i) = K))
 
Theorembnj552 14048 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- K = U_y e. (G` i) pred(y, A, R)   &   |- L = U_y e. (G` p) pred(y, A, R)   =>   |- (p = i -> L = K)
 
Theorembnj553 14049 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph' <-> (f` (/)) = pred(x, A, R))   &   |- (ps' <-> A.i e. om (suc i e. m -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   &   |- G = (f u. {<.m, U_y e. (f` p) pred(y, A, R)>.})   &   |- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- (si <-> (m e. D /\ n = suc m /\ p e. m))   &   |- C = U_y e. (f` p) pred(y, A, R)   &   |- G = (f u. {<.m, C>.})   &   |- B = U_y e. (f` i) pred(y, A, R)   &   |- K = U_y e. (G` i) pred(y, A, R)   &   |- L = U_y e. (G` p) pred(y, A, R)   &   |- ((R FrSe A /\ ta /\ si) -> G Fn n)   =>   |- (((R FrSe A /\ ta /\ si) /\ i e. m /\ p = i) -> (G` m) = L)
 
Theorembnj554 14050 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (et <-> (m e. D /\ n = suc m /\ p e. om /\ m = suc p))   &   |- (ze <-> (i e. om /\ suc i e. n /\ m = suc i))   &   |- K = U_y e. (G` i) pred(y, A, R)   &   |- L = U_y e. (G` p) pred(y, A, R)   &   |- K = U_y e. (G` i) pred(y, A, R)   &   |- L = U_y e. (G` p) pred(y, A, R)   =>   |- ((et /\ ze) -> ((G` m) = L <-> (G` suc i) = K))
 
Theorembnj556 14051 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (si <-> (m e. D /\ n = suc m /\ p e. m))   &   |- (et <-> (m e. D /\ n = suc m /\ p e. om /\ m = suc p))   =>   |- (et -> si)
 
Theorembnj557 14052 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- D = (om \ {(/)})   &   |- G = (f u. {<.m, U_y e. (f` p) pred(y, A, R)>.})   &   |- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- (si <-> (m e. D /\ n = suc m /\ p e. m))   &   |- (et <-> (m e. D /\ n = suc m /\ p e. om /\ m = suc p))   &   |- (ze <-> (i e. om /\ suc i e. n /\ m = suc i))   &   |- B = U_y e. (f` i) pred(y, A, R)   &   |- C = U_y e. (f` p) pred(y, A, R)   &   |- K = U_y e. (G` i) pred(y, A, R)   &   |- L = U_y e. (G` p) pred(y, A, R)   &   |- G = (f u. {<.m, C>.})   &   |- (ph' <-> (f` (/)) = pred(x, A, R))   &   |- (ps' <-> A.i e. om (suc i e. m -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- ((R FrSe A /\ ta /\ si) -> G Fn n)   =>   |- ((R FrSe A /\ ta /\ et /\ ze) -> (G` m) = L)
 
Theorembnj558 14053 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- D = (om \ {(/)})   &   |- G = (f u. {<.m, U_y e. (f` p) pred(y, A, R)>.})   &   |- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- (si <-> (m e. D /\ n = suc m /\ p e. m))   &   |- (et <-> (m e. D /\ n = suc m /\ p e. om /\ m = suc p))   &   |- (ze <-> (i e. om /\ suc i e. n /\ m = suc i))   &   |- B = U_y e. (f` i) pred(y, A, R)   &   |- C = U_y e. (f` p) pred(y, A, R)   &   |- K = U_y e. (G` i) pred(y, A, R)   &   |- L = U_y e. (G` p) pred(y, A, R)   &   |- G = (f u. {<.m, C>.})   &   |- (ph' <-> (f` (/)) = pred(x, A, R))   &   |- (ps' <-> A.i e. om (suc i e. m -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- ((R FrSe A /\ ta /\ si) -> G Fn n)   =>   |- ((R FrSe A /\ ta /\ et /\ ze) -> (G` suc i) = K)
 
Theorembnj561 14054 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (si <-> (m e. D /\ n = suc m /\ p e. m))   &   |- (et <-> (m e. D /\ n = suc m /\ p e. om /\ m = suc p))   &   |- ((R FrSe A /\ ta /\ si) -> G Fn n)   =>   |- ((R FrSe A /\ ta /\ et) -> G Fn n)
 
Theorembnj562 14055 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (si <-> (m e. D /\ n = suc m /\ p e. m))   &   |- (et <-> (m e. D /\ n = suc m /\ p e. om /\ m = suc p))   &   |- ((R FrSe A /\ ta /\ si) -> ph")   =>   |- ((R FrSe A /\ ta /\ et) -> ph")
 
Theorembnj567 14056 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- (et <-> (m e. D /\ n = suc m /\ p e. om /\ m = suc p))   &   |- (rh <-> (i e. om /\ suc i e. n /\ m =/= suc i))   &   |- G = (f u. {<.m, C>.})   &   |- ((R FrSe A /\ ta /\ et) -> G Fn n)   =>   |- ((R FrSe A /\ ta /\ et /\ rh) -> (G` suc i) = (f` suc i))
 
Theorembnj568 14057 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- D = (om \ {(/)})   &   |- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- (et <-> (m e. D /\ n = suc m /\ p e. om /\ m = suc p))   &   |- (rh <-> (i e. om /\ suc i e. n /\ m =/= suc i))   &   |- G = (f u. {<.m, C>.})   &   |- ((R FrSe A /\ ta /\ et) -> G Fn n)   =>   |- ((R FrSe A /\ ta /\ et /\ rh) -> (G` i) = (f` i))
 
Theorembnj569 14058 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- (et <-> (m e. D /\ n = suc m /\ p e. om /\ m = suc p))   &   |- (rh <-> (i e. om /\ suc i e. n /\ m =/= suc i))   &   |- (ps' <-> A.i e. om (suc i e. m -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   =>   |- ((R FrSe A /\ ta /\ et /\ rh) -> (f` suc i) = U_y e. (f` i) pred(y, A, R))
 
Theorembnj570 14059 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- D = (om \ {(/)})   &   |- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- (et <-> (m e. D /\ n = suc m /\ p e. om /\ m = suc p))   &   |- (rh <-> (i e. om /\ suc i e. n /\ m =/= suc i))   &   |- K = U_y e. (G` i) pred(y, A, R)   &   |- G = (f u. {<.m, C>.})   &   |- ((R FrSe A /\ ta /\ et) -> G Fn n)   &   |- (ps' <-> A.i e. om (suc i e. m -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   =>   |- ((R FrSe A /\ ta /\ et /\ rh) -> (G` suc i) = K)
 
Theorembnj571 14060 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- D = (om \ {(/)})   &   |- G = (f u. {<.m, U_y e. (f` p) pred(y, A, R)>.})   &   |- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- (si <-> (m e. D /\ n = suc m /\ p e. m))   &   |- (et <-> (m e. D /\ n = suc m /\ p e. om /\ m = suc p))   &   |- (ze <-> (i e. om /\ suc i e. n /\ m = suc i))   &   |- B = U_y e. (f` i) pred(y, A, R)   &   |- C = U_y e. (f` p) pred(y, A, R)   &   |- K = U_y e. (G` i) pred(y, A, R)   &   |- L = U_y e. (G` p) pred(y, A, R)   &   |- G = (f u. {<.m, C>.})   &   |- (ph' <-> (f` (/)) = pred(x, A, R))   &   |- (ps' <-> A.i e. om (suc i e. m -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- ((R FrSe A /\ ta /\ si) -> G Fn n)   &   |- (rh <-> (i e. om /\ suc i e. n /\ m =/= suc i))   &   |- ((R FrSe A /\ ta /\ et) -> G Fn n)   &   |- (ps" <-> A.i e. om (suc i e. n -> (G` suc i) = U_y e. (G` i) pred(y, A, R)))   =>   |- ((R FrSe A /\ ta /\ et) -> ps")
 
Theorembnj573 14061 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph" <-> (G` (/)) = pred(x, A, R))   &   |- (ps" <-> A.i e. om (suc i e. n -> (G` suc i) = U_y e. (G` i) pred(y, A, R)))   =>   |- ((G Fn n /\ ph" /\ ps") -> A.f(G Fn n /\ ph" /\ ps"))
 
Theorembnj578 14062 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (th <-> A.m e. D (m _E n -> [m / n]ch))   &   |- (ph" <-> [G / f]ph)   &   |- (ps" <-> [G / f]ps)   &   |- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- (et <-> (m e. D /\ n = suc m /\ p e. om /\ m = suc p))   &   |- G e. _V   &   |- (ch' <-> ((R FrSe A /\ x e. A) -> E!f(f Fn m /\ ph' /\ ps')))   &   |- (ph" <-> (G` (/)) = pred(x, A, R))   &   |- (ps" <-> A.i e. om (suc i e. n -> (G` suc i) = U_y e. (G` i) pred(y, A, R)))   &   |- ((n =/= 1o /\ n e. D) -> E.mE.pet)   &   |- ((th /\ m e. D /\ m _E n) -> ch')   &   |- ((R FrSe A /\ ta /\ et) -> G Fn n)   &   |- ((R FrSe A /\ ta /\ et) -> ph")   &   |- ((R FrSe A /\ ta /\ et) -> ps")   =>   |- ((n =/= 1o /\ n e. D /\ th) -> ((R FrSe A /\ x e. A) -> E.f(f Fn n /\ ph /\ ps)))
 
Theorembnj605 14063 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (th <-> A.m e. D (m _E n -> [m / n]ch))   &   |- (ph" <-> [f / f]ph)   &   |- (ps" <-> [f / f]ps)   &   |- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- (et <-> (m e. D /\ n = suc m /\ p e. om /\ m = suc p))   &   |- f e. _V   &   |- (ch' <-> ((R FrSe A /\ x e. A) -> E!f(f Fn m /\ ph' /\ ps')))   &   |- (ph" <-> (f` (/)) = pred(x, A, R))   &   |- (ps" <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- ((n =/= 1o /\ n e. D) -> E.mE.pet)   &   |- ((th /\ m e. D /\ m _E n) -> ch')   &   |- ((R FrSe A /\ ta /\ et) -> f Fn n)   &   |- ((R FrSe A /\ ta /\ et) -> ph")   &   |- ((R FrSe A /\ ta /\ et) -> ps")   =>   |- ((n =/= 1o /\ n e. D /\ th) -> ((R FrSe A /\ x e. A) -> E.f(f Fn n /\ ph /\ ps)))
 
Theorembnj606 14064 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(x, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- (th <-> A.m e. D (m _E n -> [m / n]ch))   &   |- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- (et <-> (m e. D /\ n = suc m /\ p e. om /\ m = suc p))   &   |- (ch' <-> ((R FrSe A /\ x e. A) -> E!f(f Fn m /\ ph' /\ ps')))   &   |- ((n =/= 1o /\ n e. D) -> E.mE.pet)   &   |- ((th /\ m e. D /\ m _E n) -> ch')   &   |- ((R FrSe A /\ ta /\ et) -> f Fn n)   &   |- ((R FrSe A /\ ta /\ et) -> ph)   &   |- ((R FrSe A /\ ta /\ et) -> ps)   =>   |- ((n =/= 1o /\ n e. D /\ th) -> ((R FrSe A /\ x e. A) -> E.f(f Fn n /\ ph /\ ps)))
 
Theorembnj581 14065 Technical lemma of bnj580 14072. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem). (Unnecessary distinct variable restrictions were removed by Andrew Salmon, 9-Jul-2011.)
|- (ch <-> (f Fn n /\ ph /\ ps))   &   |- (ph' <-> [g / f]ph)   &   |- (ps' <-> [g / f]ps)   &   |- (ch' <-> [g / f]ch)   =>   |- (ch' <-> (g Fn n /\ ph' /\ ps'))
 
Theorembnj582 14066 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ch' <-> [g / f]ch)   &   |- (E*fch <-> A.fA.g((ch /\ [g / f]ch) -> f = g))   =>   |- (E*fch <-> A.fA.g((ch /\ ch') -> f = g))
 
Theorembnj583 14067 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(x, A, R))   &   |- (ch <-> (f Fn n /\ ph /\ ps))   &   |- (ph' <-> (g` (/)) = pred(x, A, R))   &   |- (ch' <-> (g Fn n /\ ph' /\ ps'))   =>   |- (( pred(x, A, R) e. _V /\ n = 1o /\ ch /\ ch') -> f = g)
 
Theorembnj589 14068 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   =>   |- (ps <-> A.k e. om (suc k e. n -> (f` suc k) = U_y e. (f` k) pred(y, A, R)))
 
Theorembnj590 14069 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   =>   |- ((B = suc i /\ ps) -> (i e. om -> (B e. n -> (f` B) = U_y e. (f` i) pred(y, A, R))))
 
Theorembnj591 14070 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (th <-> ((n e. D /\ ch /\ ch') -> (f` j) = (g` j)))   =>   |- ([k / j]th <-> ((n e. D /\ ch /\ ch') -> (f` k) = (g` k)))
 
Theorembnj594 14071 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(x, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- (ch <-> (f Fn n /\ ph /\ ps))   &   |- D = (om \ {(/)})   &   |- (ph' <-> (g` (/)) = pred(x, A, R))   &   |- (ps' <-> A.i e. om (suc i e. n -> (g` suc i) = U_y e. (g` i) pred(y, A, R)))   &   |- (ch' <-> (g Fn n /\ ph' /\ ps'))   &   |- (th <-> ((n e. D /\ ch /\ ch') -> (f` j) = (g` j)))   &   |- ([k / j]th <-> ((n e. D /\ ch /\ ch') -> (f` k) = (g` k)))   &   |- (ta <-> A.k e. n (k _E j -> [k / j]th))   =>   |- ((j e. n /\ ta) -> th)
 
Theorembnj580 14072 Technical lemma of bnj579 14073. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(x, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- (ch <-> (f Fn n /\ ph /\ ps))   &   |- (ph' <-> [g / f]ph)   &   |- (ps' <-> [g / f]ps)   &   |- (ch' <-> [g / f]ch)   &   |- D = (om \ {(/)})   &   |- (th <-> ((n e. D /\ ch /\ ch') -> (f` j) = (g` j)))   &   |- (ta <-> A.k e. n (k _E j -> [k / j]th))   =>   |- (n e. D -> E*fch)
 
Theorembnj579 14073 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(x, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   =>   |- (n e. D -> E*f(f Fn n /\ ph /\ ps))
 
Theorembnj602 14074 Equality theorem for the pred function constant.
|- (X = Y -> pred(X, A, R) = pred(Y, A, R))
 
Theorembnj607 14075 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (th <-> A.m e. D (m _E n -> [m / n]ch))   &   |- (ph" <-> [G / f]ph)   &   |- (ps" <-> [G / f]ps)   &   |- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- (et <-> (m e. D /\ n = suc m /\ p e. om /\ m = suc p))   &   |- G e. _V   &   |- (ch' <-> ((R FrSe A /\ x e. A) -> E!f(f Fn m /\ ph' /\ ps')))   &   |- (ph" <-> (G` (/)) = pred(x, A, R))   &   |- (ps" <-> A.i e. om (suc i e. n -> (G` suc i) = U_y e. (G` i) pred(y, A, R)))   &   |- ((n =/= 1o /\ n e. D) -> E.mE.pet)   &   |- ((th /\ m e. D /\ m _E n) -> ch')   &   |- ((R FrSe A /\ ta /\ et) -> G Fn n)   &   |- ((R FrSe A /\ ta /\ et) -> ph")   &   |- ((R FrSe A /\ ta /\ et) -> ps")   &   |- (ph <-> (f` (/)) = pred(x, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- (ph0 <-> [h / f]ph)   &   |- (ps0 <-> [h / f]ps)   &   |- (ph1 <-> [G / h]ph0)   &   |- (ps1 <-> [G / h]ps0)   =>   |- ((n =/= 1o /\ n e. D /\ th) -> ((R FrSe A /\ x e. A) -> E.f(f Fn n /\ ph /\ ps)))
 
Theorembnj608 14076 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (th <-> A.m e. D (m _E n -> [m / n]ch))   &   |- (ph" <-> [G / f]ph)   &   |- (ps" <-> [G / f]ps)   &   |- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- (et <-> (m e. D /\ n = suc m /\ p e. om /\ m = suc p))   &   |- G e. _V   &   |- (ch' <-> ((R FrSe A /\ x e. A) -> E!f(f Fn m /\ ph' /\ ps')))   &   |- (ph" <-> (G` (/)) = pred(x, A, R))   &   |- (ps" <-> A.i e. om (suc i e. n -> (G` suc i) = U_y e. (G` i) pred(y, A, R)))   &   |- ((n =/= 1o /\ n e. D) -> E.mE.pet)   &   |- ((th /\ m e. D /\ m _E n) -> ch')   &   |- ((R FrSe A /\ ta /\ et) -> G Fn n)   &   |- ((R FrSe A /\ ta /\ et) -> ph")   &   |- ((R FrSe A /\ ta /\ et) -> ps")   &   |- (ph <-> (f` (/)) = pred(x, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   =>   |- ((n =/= 1o /\ n e. D /\ th) -> ((R FrSe A /\ x e. A) -> E.f(f Fn n /\ ph /\ ps)))
 
Theorembnj609 14077 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(X, A, R))   &   |- (ph" <-> [G / f]ph)   &   |- G e. _V   =>   |- (ph" <-> (G` (/)) = pred(X, A, R))
 
Theorembnj611 14078 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ps <-> A.i e. om (suc i e. N -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- (ps" <-> [G / f]ps)   &   |- G e. _V   =>   |- (ps" <-> A.i e. om (suc i e. N -> (G` suc i) = U_y e. (G` i) pred(y, A, R)))
 
Theorembnj600 14079 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(x, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   &   |- (ch <-> ((R FrSe A /\ x e. A) -> E!f(f Fn n /\ ph /\ ps)))   &   |- (th <-> A.m e. D (m _E n -> [m / n]ch))   &   |- (ph' <-> [m / n]ph)   &   |- (ps' <-> [m / n]ps)   &   |- (ch' <-> [m / n]ch)   &   |- (ph" <-> [G / f]ph)   &   |- (ps" <-> [G / f]ps)   &   |- (ch" <-> [G / f]ch)   &   |- G = (f u. {<.m, U_y e. (f` p) pred(y, A, R)>.})   &   |- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- (si <-> (m e. D /\ n = suc m /\ p e. m))   &   |- (et <-> (m e. D /\ n = suc m /\ p e. om /\ m = suc p))   &   |- (ze <-> (i e. om /\ suc i e. n /\ m = suc i))   &   |- (rh <-> (i e. om /\ suc i e. n /\ m =/= suc i))   &   |- B = U_y e. (f` i) pred(y, A, R)   &   |- C = U_y e. (f` p) pred(y, A, R)   &   |- K = U_y e. (G` i) pred(y, A, R)   &   |- L = U_y e. (G` p) pred(y, A, R)   &   |- G = (f u. {<.m, C>.})   =>   |- (n =/= 1o -> ((n e. D /\ th) -> ch))
 
Theorembnj601 14080 Technical lemma of bnj75 14081. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(x, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   &   |- (ch <-> ((R FrSe A /\ x e. A) -> E!f(f Fn n /\ ph /\ ps)))   &   |- (th <-> A.m e. D (m _E n -> [m / n]ch))   =>   |- (n =/= 1o -> ((n e. D /\ th) -> ch))
 
Theorembnj75 14081 Technical lemma of bnj69 14226. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(x, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   &   |- (ch <-> ((R FrSe A /\ x e. A) -> E!f(f Fn n /\ ph /\ ps)))   &   |- (th <-> A.m e. D (m _E n -> [m / n]ch))   =>   |- ((R FrSe A /\ x e. A) -> A.n e. D E!f(f Fn n /\ ph /\ ps))
 
Theorembnj616 14082 Technical lemma of bnj69 14226. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(x, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   =>   |- ((R FrSe A /\ x e. A) -> A.n e. D E!f(f Fn n /\ ph /\ ps))
 
Theorembnj850 14083 Technical lemma of bnj69 14226. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(X, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   &   |- (ph' <-> (f` (/)) = pred(x, A, R))   =>   |- ((R FrSe A /\ X e. A) -> A.n e. D E!f(f Fn n /\ ph /\ ps))
 
Theorembnj852 14084 Technical lemma of bnj69 14226. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(X, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   =>   |- ((R FrSe A /\ X e. A) -> A.n e. D E!f(f Fn n /\ ph /\ ps))
 
Theorembnj854 14085 Technical lemma of bnj69 14226. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- D = (om \ {(/)})   =>   |- (A.n e. D E!f(f Fn n /\ ph /\ ps) -> E.wA.n e. D E.f e. w (f Fn n /\ ph /\ ps))
 
Theorembnj864 14086 Technical lemma of bnj69 14226. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(X, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   &   |- (ch <-> (R FrSe A /\ X e. A /\ n e. D))   &   |- (th <-> (f Fn n /\ ph /\ ps))   =>   |- (ch -> E!fth)
 
Theorembnj865 14087 Technical lemma of bnj69 14226. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(X, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   &   |- (ch <-> (R FrSe A /\ X e. A /\ n e. D))   &   |- (th <-> (f Fn n /\ ph /\ ps))   =>   |- E.wA.n(ch -> E.f e. w th)
 
Theorembnj873 14088 Technical lemma of bnj69 14226. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- B = {f | E.n e. D (f Fn n /\ ph /\ ps)}   &   |- (ph' <-> [g / f]ph)   &   |- (ps' <-> [g / f]ps)   =>   |- B = {g | E.n e. D (g Fn n /\ ph' /\ ps')}
 
Theorembnj849 14089 Technical lemma of bnj69 14226. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(X, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   &   |- B = {f | E.n e. D (f Fn n /\ ph /\ ps)}   &   |- (ch <-> (R FrSe A /\ X e. A /\ n e. D))   &   |- (th <-> (f Fn n /\ ph /\ ps))   &   |- (ph' <-> [g / f]ph)   &   |- (ps' <-> [g / f]ps)   &   |- (th' <-> [g / f]th)   &   |- (ta <-> (R FrSe A /\ X e. A))   =>   |- ((R FrSe A /\ X e. A) -> B e. _V)
 
Theorembnj881 14090 Technical lemma of bnj69 14226. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(X, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   &   |- B = {f | E.n e. D (f Fn n /\ ph /\ ps)}   =>   |- ((R FrSe A /\ X e. A) -> B e. _V)
 
Theorembnj882 14091 Definition (using hypotheses for readability) of the function giving the transitive closure of X in A by R.
|- (ph <-> (f` (/)) = pred(X, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   &   |- B = {f | E.n e. D (f Fn n /\ ph /\ ps)}   =>   |- trCl(X, A, R) = U_f e. B U_i e. dom f(f` i)
 
Theorembnj891 14092 Technical lemma of bnj69 14226. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(X, A, R))   =>   |- ([g / f]ph <-> (g` (/)) = pred(X, A, R))
 
Theorembnj892 14093 Technical lemma of bnj69 14226. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- G e. _V   =>   |- ([G / f]ps <-> A.i e. om (suc i e. n -> (G` suc i) = U_y e. (G` i) pred(y, A, R)))
 
Theorembnj889 14094 Technical lemma of bnj893 14095. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(X, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   &   |- B = {f | E.n e. D (f Fn n /\ ph /\ ps)}   &   |- (ph' <-> (g` (/)) = pred(X, A, R))   &   |- (ps' <-> A.i e. om (suc i e. n -> (g` suc i) = U_y e. (g` i) pred(y, A, R)))   &   |- C = {g | E.n e. D (g Fn n /\ ph' /\ ps')}   =>   |- ((R FrSe A /\ X e. A) -> trCl(X, A, R) e. _V)
 
Theorembnj893 14095 Property of trCl. Under certain conditions, the transitive closure of X in A by R is a set.
|- ((R FrSe A /\ X e. A) -> trCl(X, A, R) e. _V)
 
Theorembnj900 14096 Technical lemma of bnj69 14226. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- D = (om \ {(/)})   &   |- B = {f | E.n e. D (f Fn n /\ ph /\ ps)}   =>   |- (f e. B -> (/) e. dom f)
 
Theorembnj902 14097 Technical lemma of bnj69 14226. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(X, A, R))   &   |- B = {f | E.n e. D (f Fn n /\ ph /\ ps)}   =>   |- (f e. B -> (f` (/)) = pred(X, A, R))
 
Theorembnj894 14098 Technical lemma of bnj69 14226. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(X, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   &   |- B = {f | E.n e. D (f Fn n /\ ph /\ ps)}   =>   |- ((R FrSe A /\ X e. A) -> pred(X, A, R) C_ trCl(X, A, R))
 
Theorembnj906 14099 Property of trCl.
|- ((R FrSe A /\ X e. A) -> pred(X, A, R) C_ trCl(X, A, R))
 
Theorembnj908 14100 Technical lemma of bnj69 14226. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem).
|- (ph <-> (f` (/)) = pred(x, A, R))   &   |- (ps <-> A.i e. om (suc i e. n -> (f` suc i) = U_y e. (f` i) pred(y, A, R)))   &   |- D = (om \ {(/)})   &   |- (ch <-> ((R FrSe A /\ x e. A) -> E!f(f Fn n /\ ph /\ ps)))   &   |- (th <-> A.m e. D (m _E n -> [m / n]ch))   &   |- (ph' <-> [m / n]ph)   &   |- (ps' <-> [m / n]ps)   &   |- (ch' <-> [m / n]ch)   &   |- (ph" <-> [G / f]ph)   &   |- (ps" <-> [G / f]ps)   &   |- (ch" <-> [G / f]ch)   &   |- G = (f u. {<.m, U_y e. (f` p) pred(y, A, R)>.})   &   |- (ta <-> (f Fn m /\ ph' /\ ps'))   &   |- (si <-> (m e. D /\ n = suc m /\ p e. m))   &   |- (et <-> (m e. D /\ n = suc m /\ p e. om /\ m = suc p))   &   |- (ze <-> (i e. om /\ suc i e. n /\ m = suc i))   &   |- (rh <-> (i e. om /\ suc i e. n /\ m =/= suc i))   &   |- B = U_y e. (f` i) pred(y, A, R)   &   |- C = U_y e. (f` p) pred(y, A, R)   &   |- K = U_y e. (G` i) pred(y, A, R)   &   |- L = U_y e. (G` p) pred(y, A, R)   &   |- G = (f u. {<.m, C>.})   =>   |- ((R FrSe A /\ x e. A /\ ch' /\ et) -> E.f(G Fn n /\ ph" /\ ps"))

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