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Theorem feqmptd 5247
Description: Deduction form of dffn5im 5240. (Contributed by Mario Carneiro, 8-Jan-2015.)
Hypothesis
Ref Expression
feqmptd.1 (𝜑𝐹:𝐴𝐵)
Assertion
Ref Expression
feqmptd (𝜑𝐹 = (𝑥𝐴 ↦ (𝐹𝑥)))
Distinct variable groups:   𝑥,𝐴   𝑥,𝐹
Allowed substitution hints:   𝜑(𝑥)   𝐵(𝑥)

Proof of Theorem feqmptd
StepHypRef Expression
1 feqmptd.1 . . 3 (𝜑𝐹:𝐴𝐵)
2 ffn 5066 . . 3 (𝐹:𝐴𝐵𝐹 Fn 𝐴)
31, 2syl 14 . 2 (𝜑𝐹 Fn 𝐴)
4 dffn5im 5240 . 2 (𝐹 Fn 𝐴𝐹 = (𝑥𝐴 ↦ (𝐹𝑥)))
53, 4syl 14 1 (𝜑𝐹 = (𝑥𝐴 ↦ (𝐹𝑥)))
Colors of variables: wff set class
Syntax hints:  wi 4   = wceq 1284  cmpt 3839   Fn wfn 4917  wf 4918  cfv 4922
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 104  ax-ia2 105  ax-ia3 106  ax-io 662  ax-5 1376  ax-7 1377  ax-gen 1378  ax-ie1 1422  ax-ie2 1423  ax-8 1435  ax-10 1436  ax-11 1437  ax-i12 1438  ax-bndl 1439  ax-4 1440  ax-14 1445  ax-17 1459  ax-i9 1463  ax-ial 1467  ax-i5r 1468  ax-ext 2063  ax-sep 3896  ax-pow 3948  ax-pr 3964
This theorem depends on definitions:  df-bi 115  df-3an 921  df-tru 1287  df-nf 1390  df-sb 1686  df-eu 1944  df-mo 1945  df-clab 2068  df-cleq 2074  df-clel 2077  df-nfc 2208  df-ral 2353  df-rex 2354  df-v 2603  df-sbc 2816  df-un 2977  df-in 2979  df-ss 2986  df-pw 3384  df-sn 3404  df-pr 3405  df-op 3407  df-uni 3602  df-br 3786  df-opab 3840  df-mpt 3841  df-id 4048  df-xp 4369  df-rel 4370  df-cnv 4371  df-co 4372  df-dm 4373  df-iota 4887  df-fun 4924  df-fn 4925  df-f 4926  df-fv 4930
This theorem is referenced by:  feqresmpt  5248  fcoconst  5355  suppssof1  5748  ofco  5749  caofinvl  5753  caofcom  5754  cnrecnv  9797
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