Theorem relbrcnv 6012

Description: When 𝑅 is a relation, the sethood assumptions on brcnv 5788 can be omitted. (Contributed by Mario Carneiro, 28-Apr-2015.)

Hypothesis

Ref	Expression
relbrcnv.1	⊢ Rel 𝑅

Assertion

Ref	Expression
relbrcnv	⊢ (𝐴◡𝑅𝐵 ↔ 𝐵𝑅𝐴)

Proof of Theorem relbrcnv

Step	Hyp	Ref	Expression
1		relbrcnv.1	. 2 ⊢ Rel 𝑅
2		relbrcnvg 6010	. 2 ⊢ (Rel 𝑅 → (𝐴◡𝑅𝐵 ↔ 𝐵𝑅𝐴))
3	1, 2	ax-mp 5	1 ⊢ (𝐴◡𝑅𝐵 ↔ 𝐵𝑅𝐴)

Syntax hints:   ↔ wb 205   class class class wbr 5078  ^◡ccnv 5587  Rel wrel 5593

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1801  ax-4 1815  ax-5 1916  ax-6 1974  ax-7 2014  ax-8 2111  ax-9 2119  ax-ext 2710  ax-sep 5226  ax-nul 5233  ax-pr 5355

This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3an 1087  df-tru 1544  df-fal 1554  df-ex 1786  df-sb 2071  df-clab 2717  df-cleq 2731  df-clel 2817  df-ral 3070  df-rex 3071  df-rab 3074  df-v 3432  df-dif 3894  df-un 3896  df-in 3898  df-ss 3908  df-nul 4262  df-if 4465  df-sn 4567  df-pr 4569  df-op 4573  df-br 5079  df-opab 5141  df-xp 5594  df-rel 5595  df-cnv 5596

This theorem is referenced by:  compssiso  10114  fneval  34520  brcnvep  36383  brid  36421  brcnvrabga  36456  br1cnvxrn2  36501  br1cnvssrres  36602  brcnvssr  36603  brco2f1o  41595  brco3f1o  41596  neicvgnvor  41679