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Theorem tposmpt2 7389
Description: Transposition of a two-argument mapping. (Contributed by Mario Carneiro, 10-Sep-2015.)
Hypothesis
Ref Expression
tposmpt2.1  |-  F  =  ( x  e.  A ,  y  e.  B  |->  C )
Assertion
Ref Expression
tposmpt2  |- tpos  F  =  ( y  e.  B ,  x  e.  A  |->  C )
Distinct variable group:    x, y
Allowed substitution hints:    A( x, y)    B( x, y)    C( x, y)    F( x, y)

Proof of Theorem tposmpt2
Dummy variable  z is distinct from all other variables.
StepHypRef Expression
1 tposmpt2.1 . . . 4  |-  F  =  ( x  e.  A ,  y  e.  B  |->  C )
2 df-mpt2 6655 . . . 4  |-  ( x  e.  A ,  y  e.  B  |->  C )  =  { <. <. x ,  y >. ,  z
>.  |  ( (
x  e.  A  /\  y  e.  B )  /\  z  =  C
) }
3 ancom 466 . . . . . 6  |-  ( ( x  e.  A  /\  y  e.  B )  <->  ( y  e.  B  /\  x  e.  A )
)
43anbi1i 731 . . . . 5  |-  ( ( ( x  e.  A  /\  y  e.  B
)  /\  z  =  C )  <->  ( (
y  e.  B  /\  x  e.  A )  /\  z  =  C
) )
54oprabbii 6710 . . . 4  |-  { <. <.
x ,  y >. ,  z >.  |  ( ( x  e.  A  /\  y  e.  B
)  /\  z  =  C ) }  =  { <. <. x ,  y
>. ,  z >.  |  ( ( y  e.  B  /\  x  e.  A )  /\  z  =  C ) }
61, 2, 53eqtri 2648 . . 3  |-  F  =  { <. <. x ,  y
>. ,  z >.  |  ( ( y  e.  B  /\  x  e.  A )  /\  z  =  C ) }
76tposoprab 7388 . 2  |- tpos  F  =  { <. <. y ,  x >. ,  z >.  |  ( ( y  e.  B  /\  x  e.  A
)  /\  z  =  C ) }
8 df-mpt2 6655 . 2  |-  ( y  e.  B ,  x  e.  A  |->  C )  =  { <. <. y ,  x >. ,  z >.  |  ( ( y  e.  B  /\  x  e.  A )  /\  z  =  C ) }
97, 8eqtr4i 2647 1  |- tpos  F  =  ( y  e.  B ,  x  e.  A  |->  C )
Colors of variables: wff setvar class
Syntax hints:    /\ wa 384    = wceq 1483    e. wcel 1990   {coprab 6651    |-> cmpt2 6652  tpos ctpos 7351
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906  ax-un 6949
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3an 1039  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-ral 2917  df-rex 2918  df-rab 2921  df-v 3202  df-sbc 3436  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-op 4184  df-uni 4437  df-br 4654  df-opab 4713  df-mpt 4730  df-id 5024  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-rn 5125  df-res 5126  df-ima 5127  df-iota 5851  df-fun 5890  df-fn 5891  df-fv 5896  df-oprab 6654  df-mpt2 6655  df-tpos 7352
This theorem is referenced by:  tposconst  7390  oppchomf  16380  oppglsm  18057  mattpos1  20262  mamutpos  20264  madutpos  20448  mdetpmtr2  29890
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