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Theorem cnvresid 6602
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 5859 . . 3 I = I
21eqcomi 2773 . 2 I = I
3 funi 6555 . . 3 Fun I
4 funeq 6543 . . 3 ( I = I → (Fun I ↔ Fun I ))
53, 4mpbii 235 . 2 ( I = I → Fun I )
6 funcnvres 6601 . . 3 (Fun I → ( I ↾ 𝐴) = ( I ↾ ( I “ 𝐴)))
7 imai 6065 . . . 4 ( I “ 𝐴) = 𝐴
81, 7reseq12i 5965 . . 3 ( I ↾ ( I “ 𝐴)) = ( I ↾ 𝐴)
96, 8eqtrdi 2815 . 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 1562   I cid 5543  ccnv 5648  cres 5651  cima 5652  Fun wfun 6517
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1817  ax-4 1831  ax-5 1932  ax-6 1989  ax-7 2030  ax-8 2146  ax-9 2154  ax-12 2214  ax-ext 2736  ax-sep 5248  ax-pr 5392
This theorem depends on definitions:  df-bi 209  df-an 400  df-or 859  df-3an 1101  df-tru 1565  df-fal 1575  df-ex 1802  df-sb 2093  df-mo 2568  df-eu 2598  df-clab 2743  df-cleq 2756  df-clel 2839  df-ral 3079  df-rex 3089  df-rab 3417  df-v 3458  df-dif 3909  df-un 3911  df-in 3913  df-ss 3923  df-nul 4288  df-if 4483  df-sn 4585  df-pr 4587  df-op 4591  df-br 5103  df-opab 5165  df-id 5544  df-xp 5655  df-rel 5656  df-cnv 5657  df-co 5658  df-dm 5659  df-rn 5660  df-res 5661  df-ima 5662  df-fun 6525
This theorem is referenced by:  fcoi1  6740  f1oiOLD  6848  relexpcnv  15050  tsrdir  18638  gicref  19314  ssidcn  23317  idqtop  23768  idhmeo  23835  bj-iminvid  37692  ltrncnvnid  40756  dihmeetlem1N  41919  dihglblem5apreN  41920  diophrw  43345  cnvrcl0  44206  relexpaddss  44299  imaidfu  49736
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