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Theorem prf2 13992
Description: Value of the pairing functor on morphisms. (Contributed by Mario Carneiro, 12-Jan-2017.)
Hypotheses
Ref Expression
prfval.k  |-  P  =  ( F ⟨,⟩F  G )
prfval.b  |-  B  =  ( Base `  C
)
prfval.h  |-  H  =  (  Hom  `  C
)
prfval.c  |-  ( ph  ->  F  e.  ( C 
Func  D ) )
prfval.d  |-  ( ph  ->  G  e.  ( C 
Func  E ) )
prf1.x  |-  ( ph  ->  X  e.  B )
prf2.y  |-  ( ph  ->  Y  e.  B )
prf2.k  |-  ( ph  ->  K  e.  ( X H Y ) )
Assertion
Ref Expression
prf2  |-  ( ph  ->  ( ( X ( 2nd `  P ) Y ) `  K
)  =  <. (
( X ( 2nd `  F ) Y ) `
 K ) ,  ( ( X ( 2nd `  G ) Y ) `  K
) >. )

Proof of Theorem prf2
Dummy variable  h is distinct from all other variables.
StepHypRef Expression
1 prfval.k . . 3  |-  P  =  ( F ⟨,⟩F  G )
2 prfval.b . . 3  |-  B  =  ( Base `  C
)
3 prfval.h . . 3  |-  H  =  (  Hom  `  C
)
4 prfval.c . . 3  |-  ( ph  ->  F  e.  ( C 
Func  D ) )
5 prfval.d . . 3  |-  ( ph  ->  G  e.  ( C 
Func  E ) )
6 prf1.x . . 3  |-  ( ph  ->  X  e.  B )
7 prf2.y . . 3  |-  ( ph  ->  Y  e.  B )
81, 2, 3, 4, 5, 6, 7prf2fval 13991 . 2  |-  ( ph  ->  ( X ( 2nd `  P ) Y )  =  ( h  e.  ( X H Y )  |->  <. ( ( X ( 2nd `  F
) Y ) `  h ) ,  ( ( X ( 2nd `  G ) Y ) `
 h ) >.
) )
9 simpr 447 . . . 4  |-  ( (
ph  /\  h  =  K )  ->  h  =  K )
109fveq2d 5545 . . 3  |-  ( (
ph  /\  h  =  K )  ->  (
( X ( 2nd `  F ) Y ) `
 h )  =  ( ( X ( 2nd `  F ) Y ) `  K
) )
119fveq2d 5545 . . 3  |-  ( (
ph  /\  h  =  K )  ->  (
( X ( 2nd `  G ) Y ) `
 h )  =  ( ( X ( 2nd `  G ) Y ) `  K
) )
1210, 11opeq12d 3820 . 2  |-  ( (
ph  /\  h  =  K )  ->  <. (
( X ( 2nd `  F ) Y ) `
 h ) ,  ( ( X ( 2nd `  G ) Y ) `  h
) >.  =  <. (
( X ( 2nd `  F ) Y ) `
 K ) ,  ( ( X ( 2nd `  G ) Y ) `  K
) >. )
13 prf2.k . 2  |-  ( ph  ->  K  e.  ( X H Y ) )
14 opex 4253 . . 3  |-  <. (
( X ( 2nd `  F ) Y ) `
 K ) ,  ( ( X ( 2nd `  G ) Y ) `  K
) >.  e.  _V
1514a1i 10 . 2  |-  ( ph  -> 
<. ( ( X ( 2nd `  F ) Y ) `  K
) ,  ( ( X ( 2nd `  G
) Y ) `  K ) >.  e.  _V )
168, 12, 13, 15fvmptd 5622 1  |-  ( ph  ->  ( ( X ( 2nd `  P ) Y ) `  K
)  =  <. (
( X ( 2nd `  F ) Y ) `
 K ) ,  ( ( X ( 2nd `  G ) Y ) `  K
) >. )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 358    = wceq 1632    e. wcel 1696   _Vcvv 2801   <.cop 3656   ` cfv 5271  (class class class)co 5874   2ndc2nd 6137   Basecbs 13164    Hom chom 13235    Func cfunc 13744   ⟨,⟩F cprf 13961
This theorem is referenced by:  prfcl  13993  prf1st  13994  prf2nd  13995  uncf2  14027  yonedalem22  14068
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  ax-un 4528
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-pw 3640  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-ov 5877  df-oprab 5878  df-mpt2 5879  df-1st 6138  df-2nd 6139  df-map 6790  df-ixp 6834  df-func 13748  df-prf 13965
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