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Theorem tposfn 6328
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 6327 . 2  |-  ( F : ( A  X.  B ) --> _V  -> tpos  F : ( B  X.  A ) --> _V )
2 dffn2 5406 . 2  |-  ( F  Fn  ( A  X.  B )  <->  F :
( A  X.  B
) --> _V )
3 dffn2 5406 . 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 2760    X. cxp 4658    Fn wfn 5250   -->wf 5251  tpos ctpos 6299
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 615  ax-in2 616  ax-io 710  ax-5 1458  ax-7 1459  ax-gen 1460  ax-ie1 1504  ax-ie2 1505  ax-8 1515  ax-10 1516  ax-11 1517  ax-i12 1518  ax-bndl 1520  ax-4 1521  ax-17 1537  ax-i9 1541  ax-ial 1545  ax-i5r 1546  ax-13 2166  ax-14 2167  ax-ext 2175  ax-sep 4148  ax-nul 4156  ax-pow 4204  ax-pr 4239  ax-un 4465
This theorem depends on definitions:  df-bi 117  df-3an 982  df-tru 1367  df-fal 1370  df-nf 1472  df-sb 1774  df-eu 2045  df-mo 2046  df-clab 2180  df-cleq 2186  df-clel 2189  df-nfc 2325  df-ne 2365  df-ral 2477  df-rex 2478  df-rab 2481  df-v 2762  df-sbc 2987  df-dif 3156  df-un 3158  df-in 3160  df-ss 3167  df-nul 3448  df-pw 3604  df-sn 3625  df-pr 3626  df-op 3628  df-uni 3837  df-br 4031  df-opab 4092  df-mpt 4093  df-id 4325  df-xp 4666  df-rel 4667  df-cnv 4668  df-co 4669  df-dm 4670  df-rn 4671  df-res 4672  df-ima 4673  df-iota 5216  df-fun 5257  df-fn 5258  df-f 5259  df-fo 5261  df-fv 5263  df-tpos 6300
This theorem is referenced by:  tpossym  6331
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