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Theorem ofrfval2 6112
Description: The function relation acting on maps. (Contributed by Mario Carneiro, 20-Jul-2014.)
Hypotheses
Ref Expression
offval2.1  |-  ( ph  ->  A  e.  V )
offval2.2  |-  ( (
ph  /\  x  e.  A )  ->  B  e.  W )
offval2.3  |-  ( (
ph  /\  x  e.  A )  ->  C  e.  X )
offval2.4  |-  ( ph  ->  F  =  ( x  e.  A  |->  B ) )
offval2.5  |-  ( ph  ->  G  =  ( x  e.  A  |->  C ) )
Assertion
Ref Expression
ofrfval2  |-  ( ph  ->  ( F  o R R G  <->  A. x  e.  A  B R C ) )
Distinct variable groups:    x, A    ph, x    x, R
Allowed substitution hints:    B( x)    C( x)    F( x)    G( x)    V( x)    W( x)    X( x)

Proof of Theorem ofrfval2
Dummy variable  y is distinct from all other variables.
StepHypRef Expression
1 offval2.2 . . . . . 6  |-  ( (
ph  /\  x  e.  A )  ->  B  e.  W )
21ralrimiva 2639 . . . . 5  |-  ( ph  ->  A. x  e.  A  B  e.  W )
3 eqid 2296 . . . . . 6  |-  ( x  e.  A  |->  B )  =  ( x  e.  A  |->  B )
43fnmpt 5386 . . . . 5  |-  ( A. x  e.  A  B  e.  W  ->  ( x  e.  A  |->  B )  Fn  A )
52, 4syl 15 . . . 4  |-  ( ph  ->  ( x  e.  A  |->  B )  Fn  A
)
6 offval2.4 . . . . 5  |-  ( ph  ->  F  =  ( x  e.  A  |->  B ) )
76fneq1d 5351 . . . 4  |-  ( ph  ->  ( F  Fn  A  <->  ( x  e.  A  |->  B )  Fn  A ) )
85, 7mpbird 223 . . 3  |-  ( ph  ->  F  Fn  A )
9 offval2.3 . . . . . 6  |-  ( (
ph  /\  x  e.  A )  ->  C  e.  X )
109ralrimiva 2639 . . . . 5  |-  ( ph  ->  A. x  e.  A  C  e.  X )
11 eqid 2296 . . . . . 6  |-  ( x  e.  A  |->  C )  =  ( x  e.  A  |->  C )
1211fnmpt 5386 . . . . 5  |-  ( A. x  e.  A  C  e.  X  ->  ( x  e.  A  |->  C )  Fn  A )
1310, 12syl 15 . . . 4  |-  ( ph  ->  ( x  e.  A  |->  C )  Fn  A
)
14 offval2.5 . . . . 5  |-  ( ph  ->  G  =  ( x  e.  A  |->  C ) )
1514fneq1d 5351 . . . 4  |-  ( ph  ->  ( G  Fn  A  <->  ( x  e.  A  |->  C )  Fn  A ) )
1613, 15mpbird 223 . . 3  |-  ( ph  ->  G  Fn  A )
17 offval2.1 . . 3  |-  ( ph  ->  A  e.  V )
18 inidm 3391 . . 3  |-  ( A  i^i  A )  =  A
196adantr 451 . . . 4  |-  ( (
ph  /\  y  e.  A )  ->  F  =  ( x  e.  A  |->  B ) )
2019fveq1d 5543 . . 3  |-  ( (
ph  /\  y  e.  A )  ->  ( F `  y )  =  ( ( x  e.  A  |->  B ) `
 y ) )
2114adantr 451 . . . 4  |-  ( (
ph  /\  y  e.  A )  ->  G  =  ( x  e.  A  |->  C ) )
2221fveq1d 5543 . . 3  |-  ( (
ph  /\  y  e.  A )  ->  ( G `  y )  =  ( ( x  e.  A  |->  C ) `
 y ) )
238, 16, 17, 17, 18, 20, 22ofrfval 6102 . 2  |-  ( ph  ->  ( F  o R R G  <->  A. y  e.  A  ( (
x  e.  A  |->  B ) `  y ) R ( ( x  e.  A  |->  C ) `
 y ) ) )
24 nfmpt1 4125 . . . . . 6  |-  F/_ x
( x  e.  A  |->  B )
25 nfcv 2432 . . . . . 6  |-  F/_ x
y
2624, 25nffv 5548 . . . . 5  |-  F/_ x
( ( x  e.  A  |->  B ) `  y )
27 nfcv 2432 . . . . 5  |-  F/_ x R
28 nfmpt1 4125 . . . . . 6  |-  F/_ x
( x  e.  A  |->  C )
2928, 25nffv 5548 . . . . 5  |-  F/_ x
( ( x  e.  A  |->  C ) `  y )
3026, 27, 29nfbr 4083 . . . 4  |-  F/ x
( ( x  e.  A  |->  B ) `  y ) R ( ( x  e.  A  |->  C ) `  y
)
31 nfv 1609 . . . 4  |-  F/ y ( ( x  e.  A  |->  B ) `  x ) R ( ( x  e.  A  |->  C ) `  x
)
32 fveq2 5541 . . . . 5  |-  ( y  =  x  ->  (
( x  e.  A  |->  B ) `  y
)  =  ( ( x  e.  A  |->  B ) `  x ) )
33 fveq2 5541 . . . . 5  |-  ( y  =  x  ->  (
( x  e.  A  |->  C ) `  y
)  =  ( ( x  e.  A  |->  C ) `  x ) )
3432, 33breq12d 4052 . . . 4  |-  ( y  =  x  ->  (
( ( x  e.  A  |->  B ) `  y ) R ( ( x  e.  A  |->  C ) `  y
)  <->  ( ( x  e.  A  |->  B ) `
 x ) R ( ( x  e.  A  |->  C ) `  x ) ) )
3530, 31, 34cbvral 2773 . . 3  |-  ( A. y  e.  A  (
( x  e.  A  |->  B ) `  y
) R ( ( x  e.  A  |->  C ) `  y )  <->  A. x  e.  A  ( ( x  e.  A  |->  B ) `  x ) R ( ( x  e.  A  |->  C ) `  x
) )
36 simpr 447 . . . . . 6  |-  ( (
ph  /\  x  e.  A )  ->  x  e.  A )
373fvmpt2 5624 . . . . . 6  |-  ( ( x  e.  A  /\  B  e.  W )  ->  ( ( x  e.  A  |->  B ) `  x )  =  B )
3836, 1, 37syl2anc 642 . . . . 5  |-  ( (
ph  /\  x  e.  A )  ->  (
( x  e.  A  |->  B ) `  x
)  =  B )
3911fvmpt2 5624 . . . . . 6  |-  ( ( x  e.  A  /\  C  e.  X )  ->  ( ( x  e.  A  |->  C ) `  x )  =  C )
4036, 9, 39syl2anc 642 . . . . 5  |-  ( (
ph  /\  x  e.  A )  ->  (
( x  e.  A  |->  C ) `  x
)  =  C )
4138, 40breq12d 4052 . . . 4  |-  ( (
ph  /\  x  e.  A )  ->  (
( ( x  e.  A  |->  B ) `  x ) R ( ( x  e.  A  |->  C ) `  x
)  <->  B R C ) )
4241ralbidva 2572 . . 3  |-  ( ph  ->  ( A. x  e.  A  ( ( x  e.  A  |->  B ) `
 x ) R ( ( x  e.  A  |->  C ) `  x )  <->  A. x  e.  A  B R C ) )
4335, 42syl5bb 248 . 2  |-  ( ph  ->  ( A. y  e.  A  ( ( x  e.  A  |->  B ) `
 y ) R ( ( x  e.  A  |->  C ) `  y )  <->  A. x  e.  A  B R C ) )
4423, 43bitrd 244 1  |-  ( ph  ->  ( F  o R R G  <->  A. x  e.  A  B R C ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    <-> wb 176    /\ wa 358    = wceq 1632    e. wcel 1696   A.wral 2556   class class class wbr 4039    e. cmpt 4093    Fn wfn 5266   ` cfv 5271    o Rcofr 6093
This theorem is referenced by:  gsumbagdiaglem  16137  mplmonmul  16224  coe1mul2lem1  16360  itg2const  19111  itg2const2  19112  itg2uba  19114  itg2mulclem  19117  itg2splitlem  19119  itg2split  19120  itg2monolem1  19121  itg2gt0  19131  itg2cnlem1  19132  itg2cnlem2  19133  iblss  19175  i1fibl  19178  itgitg1  19179  itgle  19180  ibladdlem  19190  iblabs  19199  iblabsr  19200  iblmulc2  19201  bddmulibl  19209  itg2addnclem  25003  itg2addnc  25005  itg2gt0cn  25006  ibladdnclem  25007  iblabsnc  25015  iblmulc2nc  25016  bddiblnc  25021
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1536  ax-5 1547  ax-17 1606  ax-9 1644  ax-8 1661  ax-13 1698  ax-14 1700  ax-6 1715  ax-7 1720  ax-11 1727  ax-12 1878  ax-ext 2277  ax-rep 4147  ax-sep 4157  ax-nul 4165  ax-pow 4204  ax-pr 4230
This theorem depends on definitions:  df-bi 177  df-or 359  df-an 360  df-3an 936  df-tru 1310  df-ex 1532  df-nf 1535  df-sb 1639  df-eu 2160  df-mo 2161  df-clab 2283  df-cleq 2289  df-clel 2292  df-nfc 2421  df-ne 2461  df-ral 2561  df-rex 2562  df-reu 2563  df-rab 2565  df-v 2803  df-sbc 3005  df-csb 3095  df-dif 3168  df-un 3170  df-in 3172  df-ss 3179  df-nul 3469  df-if 3579  df-sn 3659  df-pr 3660  df-op 3662  df-uni 3844  df-iun 3923  df-br 4040  df-opab 4094  df-mpt 4095  df-id 4325  df-xp 4711  df-rel 4712  df-cnv 4713  df-co 4714  df-dm 4715  df-rn 4716  df-res 4717  df-ima 4718  df-iota 5235  df-fun 5273  df-fn 5274  df-f 5275  df-f1 5276  df-fo 5277  df-f1o 5278  df-fv 5279  df-ofr 6095
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