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Theorem rncnvcnv 4732
 Description: The range of the double converse of a class. (Contributed by NM, 8-Apr-2007.)
Assertion
Ref Expression
rncnvcnv ran 𝐴 = ran 𝐴

Proof of Theorem rncnvcnv
StepHypRef Expression
1 df-rn 4518 . 2 ran 𝐴 = dom 𝐴
2 dfdm4 4699 . 2 dom 𝐴 = ran 𝐴
31, 2eqtr2i 2137 1 ran 𝐴 = ran 𝐴
 Colors of variables: wff set class Syntax hints:   = wceq 1314  ◡ccnv 4506  dom cdm 4507  ran crn 4508 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-io 681  ax-5 1406  ax-7 1407  ax-gen 1408  ax-ie1 1452  ax-ie2 1453  ax-8 1465  ax-10 1466  ax-11 1467  ax-i12 1468  ax-bndl 1469  ax-4 1470  ax-14 1475  ax-17 1489  ax-i9 1493  ax-ial 1497  ax-i5r 1498  ax-ext 2097  ax-sep 4014  ax-pow 4066  ax-pr 4099 This theorem depends on definitions:  df-bi 116  df-3an 947  df-tru 1317  df-nf 1420  df-sb 1719  df-eu 1978  df-mo 1979  df-clab 2102  df-cleq 2108  df-clel 2111  df-nfc 2245  df-v 2660  df-un 3043  df-in 3045  df-ss 3052  df-pw 3480  df-sn 3501  df-pr 3502  df-op 3504  df-br 3898  df-opab 3958  df-cnv 4515  df-dm 4517  df-rn 4518 This theorem is referenced by:  rnresv  4966
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