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Theorem tposfn 6270
Description: Functionality of a transposition. (Contributed by Mario Carneiro, 4-Oct-2015.)
Assertion
Ref Expression
tposfn  |-  ( F  Fn  ( A  X.  B )  -> tpos  F  Fn  ( B  X.  A
) )

Proof of Theorem tposfn
StepHypRef Expression
1 tposf 6269 . 2  |-  ( F : ( A  X.  B ) --> _V  -> tpos  F : ( B  X.  A ) --> _V )
2 dffn2 5365 . 2  |-  ( F  Fn  ( A  X.  B )  <->  F :
( A  X.  B
) --> _V )
3 dffn2 5365 . 2  |-  (tpos  F  Fn  ( B  X.  A
)  <-> tpos  F : ( B  X.  A ) --> _V )
41, 2, 33imtr4i 201 1  |-  ( F  Fn  ( A  X.  B )  -> tpos  F  Fn  ( B  X.  A
) )
Colors of variables: wff set class
Syntax hints:    -> wi 4   _Vcvv 2737    X. cxp 4623    Fn wfn 5209   -->wf 5210  tpos ctpos 6241
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 614  ax-in2 615  ax-io 709  ax-5 1447  ax-7 1448  ax-gen 1449  ax-ie1 1493  ax-ie2 1494  ax-8 1504  ax-10 1505  ax-11 1506  ax-i12 1507  ax-bndl 1509  ax-4 1510  ax-17 1526  ax-i9 1530  ax-ial 1534  ax-i5r 1535  ax-13 2150  ax-14 2151  ax-ext 2159  ax-sep 4120  ax-nul 4128  ax-pow 4173  ax-pr 4208  ax-un 4432
This theorem depends on definitions:  df-bi 117  df-3an 980  df-tru 1356  df-fal 1359  df-nf 1461  df-sb 1763  df-eu 2029  df-mo 2030  df-clab 2164  df-cleq 2170  df-clel 2173  df-nfc 2308  df-ne 2348  df-ral 2460  df-rex 2461  df-rab 2464  df-v 2739  df-sbc 2963  df-dif 3131  df-un 3133  df-in 3135  df-ss 3142  df-nul 3423  df-pw 3577  df-sn 3598  df-pr 3599  df-op 3601  df-uni 3810  df-br 4003  df-opab 4064  df-mpt 4065  df-id 4292  df-xp 4631  df-rel 4632  df-cnv 4633  df-co 4634  df-dm 4635  df-rn 4636  df-res 4637  df-ima 4638  df-iota 5176  df-fun 5216  df-fn 5217  df-f 5218  df-fo 5220  df-fv 5222  df-tpos 6242
This theorem is referenced by:  tpossym  6273
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