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Theorem rncnvcnv 5085
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 4881 . 2  |-  ran  A  =  dom  `' A
2 dfdm4 5055 . 2  |-  dom  `' A  =  ran  `' `' A
31, 2eqtr2i 2456 1  |-  ran  `' `' A  =  ran  A
Colors of variables: wff set class
Syntax hints:    = wceq 1652   `'ccnv 4869   dom cdm 4870   ran crn 4871
This theorem is referenced by:  rnresv  5322
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1555  ax-5 1566  ax-17 1626  ax-9 1666  ax-8 1687  ax-14 1729  ax-6 1744  ax-7 1749  ax-11 1761  ax-12 1950  ax-ext 2416  ax-sep 4322  ax-nul 4330  ax-pr 4395
This theorem depends on definitions:  df-bi 178  df-or 360  df-an 361  df-3an 938  df-tru 1328  df-ex 1551  df-nf 1554  df-sb 1659  df-eu 2284  df-mo 2285  df-clab 2422  df-cleq 2428  df-clel 2431  df-nfc 2560  df-ne 2600  df-rab 2706  df-v 2950  df-dif 3315  df-un 3317  df-in 3319  df-ss 3326  df-nul 3621  df-if 3732  df-sn 3812  df-pr 3813  df-op 3815  df-br 4205  df-opab 4259  df-cnv 4878  df-dm 4880  df-rn 4881
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