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Theorem cnvcnv2 5190
Description: The double converse of a class equals its restriction to the universe. (Contributed by NM, 8-Oct-2007.)
Assertion
Ref Expression
cnvcnv2  |-  `' `' A  =  ( A  |` 
_V )

Proof of Theorem cnvcnv2
StepHypRef Expression
1 cnvcnv 5189 . 2  |-  `' `' A  =  ( A  i^i  ( _V  X.  _V ) )
2 df-res 4737 . 2  |-  ( A  |`  _V )  =  ( A  i^i  ( _V 
X.  _V ) )
31, 2eqtr4i 2255 1  |-  `' `' A  =  ( A  |` 
_V )
Colors of variables: wff set class
Syntax hints:    = wceq 1397   _Vcvv 2802    i^i cin 3199    X. cxp 4723   `'ccnv 4724    |` cres 4727
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 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-14 2205  ax-ext 2213  ax-sep 4207  ax-pow 4264  ax-pr 4299
This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-nf 1509  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-ral 2515  df-rex 2516  df-v 2804  df-un 3204  df-in 3206  df-ss 3213  df-pw 3654  df-sn 3675  df-pr 3676  df-op 3678  df-br 4089  df-opab 4151  df-xp 4731  df-rel 4732  df-cnv 4733  df-res 4737
This theorem is referenced by:  dfrel3  5194  rnresv  5196  rescnvcnv  5199  cocnvcnv1  5247  cocnvcnv2  5248  strslfv2d  13124
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