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Theorem cnvresid 6561
Description: Converse of a restricted identity function. (Contributed by FL, 4-Mar-2007.)
Assertion
Ref Expression
cnvresid ( I ↾ 𝐴) = ( I ↾ 𝐴)

Proof of Theorem cnvresid
StepHypRef Expression
1 cnvi 6090 . . 3 I = I
21eqcomi 2738 . 2 I = I
3 funi 6514 . . 3 Fun I
4 funeq 6502 . . 3 ( I = I → (Fun I ↔ Fun I ))
53, 4mpbii 233 . 2 ( I = I → Fun I )
6 funcnvres 6560 . . 3 (Fun I → ( I ↾ 𝐴) = ( I ↾ ( I “ 𝐴)))
7 imai 6025 . . . 4 ( I “ 𝐴) = 𝐴
81, 7reseq12i 5928 . . 3 ( I ↾ ( I “ 𝐴)) = ( I ↾ 𝐴)
96, 8eqtrdi 2780 . 2 (Fun I → ( I ↾ 𝐴) = ( I ↾ 𝐴))
102, 5, 9mp2b 10 1 ( I ↾ 𝐴) = ( I ↾ 𝐴)
Colors of variables: wff setvar class
Syntax hints:   = wceq 1540   I cid 5513  ccnv 5618  cres 5621  cima 5622  Fun wfun 6476
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2008  ax-8 2111  ax-9 2119  ax-12 2178  ax-ext 2701  ax-sep 5235  ax-nul 5245  ax-pr 5371
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-sb 2066  df-mo 2533  df-eu 2562  df-clab 2708  df-cleq 2721  df-clel 2803  df-ral 3045  df-rex 3054  df-rab 3395  df-v 3438  df-dif 3906  df-un 3908  df-in 3910  df-ss 3920  df-nul 4285  df-if 4477  df-sn 4578  df-pr 4580  df-op 4584  df-br 5093  df-opab 5155  df-id 5514  df-xp 5625  df-rel 5626  df-cnv 5627  df-co 5628  df-dm 5629  df-rn 5630  df-res 5631  df-ima 5632  df-fun 6484
This theorem is referenced by:  fcoi1  6698  f1oi  6802  relexpcnv  14942  tsrdir  18510  gicref  19151  ssidcn  23140  idqtop  23591  idhmeo  23658  bj-iminvid  37189  ltrncnvnid  40126  dihmeetlem1N  41289  dihglblem5apreN  41290  diophrw  42752  cnvrcl0  43618  relexpaddss  43711  imaidfu  49115
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