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Theorem lhpexle2lem 30904
Description: Lemma for lhpexle2 30905. (Contributed by NM, 19-Jun-2013.)
Hypotheses
Ref Expression
lhpex1.l  |-  .<_  =  ( le `  K )
lhpex1.a  |-  A  =  ( Atoms `  K )
lhpex1.h  |-  H  =  ( LHyp `  K
)
Assertion
Ref Expression
lhpexle2lem  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  ->  E. p  e.  A  ( p  .<_  W  /\  p  =/=  X  /\  p  =/=  Y ) )
Distinct variable groups:    .<_ , p    A, p    H, p    K, p    W, p    X, p    Y, p

Proof of Theorem lhpexle2lem
StepHypRef Expression
1 simpl1 961 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =  Y )  ->  ( K  e.  HL  /\  W  e.  H ) )
2 lhpex1.l . . . . 5  |-  .<_  =  ( le `  K )
3 lhpex1.a . . . . 5  |-  A  =  ( Atoms `  K )
4 lhpex1.h . . . . 5  |-  H  =  ( LHyp `  K
)
52, 3, 4lhpexle1 30903 . . . 4  |-  ( ( K  e.  HL  /\  W  e.  H )  ->  E. p  e.  A  ( p  .<_  W  /\  p  =/=  X ) )
61, 5syl 16 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =  Y )  ->  E. p  e.  A  ( p  .<_  W  /\  p  =/= 
X ) )
7 simp3l 986 . . . . . 6  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =  Y  /\  ( p 
.<_  W  /\  p  =/= 
X ) )  ->  p  .<_  W )
8 simp3r 987 . . . . . 6  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =  Y  /\  ( p 
.<_  W  /\  p  =/= 
X ) )  ->  p  =/=  X )
9 simp2 959 . . . . . . 7  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =  Y  /\  ( p 
.<_  W  /\  p  =/= 
X ) )  ->  X  =  Y )
108, 9neeqtrd 2629 . . . . . 6  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =  Y  /\  ( p 
.<_  W  /\  p  =/= 
X ) )  ->  p  =/=  Y )
117, 8, 103jca 1135 . . . . 5  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =  Y  /\  ( p 
.<_  W  /\  p  =/= 
X ) )  -> 
( p  .<_  W  /\  p  =/=  X  /\  p  =/=  Y ) )
12113expia 1156 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =  Y )  ->  (
( p  .<_  W  /\  p  =/=  X )  -> 
( p  .<_  W  /\  p  =/=  X  /\  p  =/=  Y ) ) )
1312reximdv 2823 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =  Y )  ->  ( E. p  e.  A  ( p  .<_  W  /\  p  =/=  X )  ->  E. p  e.  A  ( p  .<_  W  /\  p  =/=  X  /\  p  =/=  Y ) ) )
146, 13mpd 15 . 2  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =  Y )  ->  E. p  e.  A  ( p  .<_  W  /\  p  =/= 
X  /\  p  =/=  Y ) )
15 simpl1l 1009 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =/= 
Y )  ->  K  e.  HL )
16 simpl2l 1011 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =/= 
Y )  ->  X  e.  A )
17 simpl3l 1013 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =/= 
Y )  ->  Y  e.  A )
18 simpr 449 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =/= 
Y )  ->  X  =/=  Y )
19 eqid 2442 . . . . 5  |-  ( join `  K )  =  (
join `  K )
202, 19, 3hlsupr 30281 . . . 4  |-  ( ( ( K  e.  HL  /\  X  e.  A  /\  Y  e.  A )  /\  X  =/=  Y
)  ->  E. p  e.  A  ( p  =/=  X  /\  p  =/= 
Y  /\  p  .<_  ( X ( join `  K
) Y ) ) )
2115, 16, 17, 18, 20syl31anc 1188 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =/= 
Y )  ->  E. p  e.  A  ( p  =/=  X  /\  p  =/= 
Y  /\  p  .<_  ( X ( join `  K
) Y ) ) )
22 eqid 2442 . . . . . . . 8  |-  ( Base `  K )  =  (
Base `  K )
23 simpl1l 1009 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  K  e.  HL )
24 hllat 30259 . . . . . . . . 9  |-  ( K  e.  HL  ->  K  e.  Lat )
2523, 24syl 16 . . . . . . . 8  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  K  e.  Lat )
26 simprlr 741 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  p  e.  A )
2722, 3atbase 30185 . . . . . . . . 9  |-  ( p  e.  A  ->  p  e.  ( Base `  K
) )
2826, 27syl 16 . . . . . . . 8  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  p  e.  ( Base `  K
) )
29 simpl2l 1011 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  X  e.  A )
30 simpl3l 1013 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  Y  e.  A )
3122, 19, 3hlatjcl 30262 . . . . . . . . 9  |-  ( ( K  e.  HL  /\  X  e.  A  /\  Y  e.  A )  ->  ( X ( join `  K ) Y )  e.  ( Base `  K
) )
3223, 29, 30, 31syl3anc 1185 . . . . . . . 8  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  ( X ( join `  K
) Y )  e.  ( Base `  K
) )
33 simpl1r 1010 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  W  e.  H )
3422, 4lhpbase 30893 . . . . . . . . 9  |-  ( W  e.  H  ->  W  e.  ( Base `  K
) )
3533, 34syl 16 . . . . . . . 8  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  W  e.  ( Base `  K
) )
36 simprr3 1008 . . . . . . . 8  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  p  .<_  ( X ( join `  K ) Y ) )
37 simpl2r 1012 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  X  .<_  W )
38 simpl3r 1014 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  Y  .<_  W )
3922, 3atbase 30185 . . . . . . . . . . 11  |-  ( X  e.  A  ->  X  e.  ( Base `  K
) )
4029, 39syl 16 . . . . . . . . . 10  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  X  e.  ( Base `  K
) )
4122, 3atbase 30185 . . . . . . . . . . 11  |-  ( Y  e.  A  ->  Y  e.  ( Base `  K
) )
4230, 41syl 16 . . . . . . . . . 10  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  Y  e.  ( Base `  K
) )
4322, 2, 19latjle12 14522 . . . . . . . . . 10  |-  ( ( K  e.  Lat  /\  ( X  e.  ( Base `  K )  /\  Y  e.  ( Base `  K )  /\  W  e.  ( Base `  K
) ) )  -> 
( ( X  .<_  W  /\  Y  .<_  W )  <-> 
( X ( join `  K ) Y ) 
.<_  W ) )
4425, 40, 42, 35, 43syl13anc 1187 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  (
( X  .<_  W  /\  Y  .<_  W )  <->  ( X
( join `  K ) Y )  .<_  W ) )
4537, 38, 44mpbi2and 889 . . . . . . . 8  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  ( X ( join `  K
) Y )  .<_  W )
4622, 2, 25, 28, 32, 35, 36, 45lattrd 14518 . . . . . . 7  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  p  .<_  W )
47 simprr1 1006 . . . . . . 7  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  p  =/=  X )
48 simprr2 1007 . . . . . . 7  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  p  =/=  Y )
4946, 47, 483jca 1135 . . . . . 6  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  (
p  .<_  W  /\  p  =/=  X  /\  p  =/= 
Y ) )
5049exp44 598 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  -> 
( X  =/=  Y  ->  ( p  e.  A  ->  ( ( p  =/= 
X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) )  ->  ( p  .<_  W  /\  p  =/=  X  /\  p  =/=  Y
) ) ) ) )
5150imp31 423 . . . 4  |-  ( ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =/= 
Y )  /\  p  e.  A )  ->  (
( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) )  ->  ( p  .<_  W  /\  p  =/=  X  /\  p  =/=  Y
) ) )
5251reximdva 2824 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =/= 
Y )  ->  ( E. p  e.  A  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) )  ->  E. p  e.  A  ( p  .<_  W  /\  p  =/=  X  /\  p  =/=  Y ) ) )
5321, 52mpd 15 . 2  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =/= 
Y )  ->  E. p  e.  A  ( p  .<_  W  /\  p  =/= 
X  /\  p  =/=  Y ) )
5414, 53pm2.61dane 2688 1  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  ->  E. p  e.  A  ( p  .<_  W  /\  p  =/=  X  /\  p  =/=  Y ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    <-> wb 178    /\ wa 360    /\ w3a 937    = wceq 1653    e. wcel 1727    =/= wne 2605   E.wrex 2712   class class class wbr 4237   ` cfv 5483  (class class class)co 6110   Basecbs 13500   lecple 13567   joincjn 14432   Latclat 14505   Atomscatm 30159   HLchlt 30246   LHypclh 30879
This theorem is referenced by:  lhpexle2  30905
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1556  ax-5 1567  ax-17 1627  ax-9 1668  ax-8 1689  ax-13 1729  ax-14 1731  ax-6 1746  ax-7 1751  ax-11 1763  ax-12 1953  ax-ext 2423  ax-rep 4345  ax-sep 4355  ax-nul 4363  ax-pow 4406  ax-pr 4432  ax-un 4730
This theorem depends on definitions:  df-bi 179  df-or 361  df-an 362  df-3an 939  df-tru 1329  df-ex 1552  df-nf 1555  df-sb 1660  df-eu 2291  df-mo 2292  df-clab 2429  df-cleq 2435  df-clel 2438  df-nfc 2567  df-ne 2607  df-nel 2608  df-ral 2716  df-rex 2717  df-reu 2718  df-rab 2720  df-v 2964  df-sbc 3168  df-csb 3268  df-dif 3309  df-un 3311  df-in 3313  df-ss 3320  df-nul 3614  df-if 3764  df-pw 3825  df-sn 3844  df-pr 3845  df-op 3847  df-uni 4040  df-iun 4119  df-br 4238  df-opab 4292  df-mpt 4293  df-id 4527  df-xp 4913  df-rel 4914  df-cnv 4915  df-co 4916  df-dm 4917  df-rn 4918  df-res 4919  df-ima 4920  df-iota 5447  df-fun 5485  df-fn 5486  df-f 5487  df-f1 5488  df-fo 5489  df-f1o 5490  df-fv 5491  df-ov 6113  df-oprab 6114  df-mpt2 6115  df-1st 6378  df-2nd 6379  df-undef 6572  df-riota 6578  df-poset 14434  df-plt 14446  df-lub 14462  df-glb 14463  df-join 14464  df-meet 14465  df-p0 14499  df-p1 14500  df-lat 14506  df-clat 14568  df-oposet 30072  df-ol 30074  df-oml 30075  df-covers 30162  df-ats 30163  df-atl 30194  df-cvlat 30218  df-hlat 30247  df-lhyp 30883
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