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Theorem funcnvres2 5412
Description: The converse of a restriction of the converse of a function equals the function restricted to the image of its converse. (Contributed by NM, 4-May-2005.)
Assertion
Ref Expression
funcnvres2 (Fun 𝐹(𝐹𝐴) = (𝐹 ↾ (𝐹𝐴)))

Proof of Theorem funcnvres2
StepHypRef Expression
1 funcnvcnv 5396 . . 3 (Fun 𝐹 → Fun 𝐹)
2 funcnvres 5410 . . 3 (Fun 𝐹(𝐹𝐴) = (𝐹 ↾ (𝐹𝐴)))
31, 2syl 14 . 2 (Fun 𝐹(𝐹𝐴) = (𝐹 ↾ (𝐹𝐴)))
4 funrel 5350 . . . 4 (Fun 𝐹 → Rel 𝐹)
5 dfrel2 5194 . . . 4 (Rel 𝐹𝐹 = 𝐹)
64, 5sylib 122 . . 3 (Fun 𝐹𝐹 = 𝐹)
76reseq1d 5018 . 2 (Fun 𝐹 → (𝐹 ↾ (𝐹𝐴)) = (𝐹 ↾ (𝐹𝐴)))
83, 7eqtrd 2264 1 (Fun 𝐹(𝐹𝐴) = (𝐹 ↾ (𝐹𝐴)))
Colors of variables: wff set class
Syntax hints:  wi 4   = wceq 1398  ccnv 4730  cres 4733  cima 4734  Rel wrel 4736  Fun wfun 5327
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-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-14 2205  ax-ext 2213  ax-sep 4212  ax-pow 4270  ax-pr 4305
This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-nf 1510  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-ral 2516  df-rex 2517  df-v 2805  df-un 3205  df-in 3207  df-ss 3214  df-pw 3658  df-sn 3679  df-pr 3680  df-op 3682  df-br 4094  df-opab 4156  df-id 4396  df-xp 4737  df-rel 4738  df-cnv 4739  df-co 4740  df-dm 4741  df-rn 4742  df-res 4743  df-ima 4744  df-fun 5335
This theorem is referenced by:  funimacnv  5413  foimacnv  5610
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