Theorem brcnvep 38288

Description: The converse of the binary epsilon relation. (Contributed by Peter Mazsa, 30-Jan-2018.)

Assertion

Ref	Expression
brcnvep	⊢ (𝐴 ∈ 𝑉 → (𝐴◡ E 𝐵 ↔ 𝐵 ∈ 𝐴))

Proof of Theorem brcnvep

Step	Hyp	Ref	Expression
1		rele 5811	. . 3 ⊢ Rel E
2	1	relbrcnv 6099	. 2 ⊢ (𝐴◡ E 𝐵 ↔ 𝐵 E 𝐴)
3		epelg 5559	. 2 ⊢ (𝐴 ∈ 𝑉 → (𝐵 E 𝐴 ↔ 𝐵 ∈ 𝐴))
4	2, 3	bitrid 283	1 ⊢ (𝐴 ∈ 𝑉 → (𝐴◡ E 𝐵 ↔ 𝐵 ∈ 𝐴))

Syntax hints:   → wi 4   ↔ wb 206   ∈ wcel 2109   class class class wbr 5124   E cep 5557  ^◡ccnv 5658

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2008  ax-8 2111  ax-9 2119  ax-ext 2708  ax-sep 5271  ax-nul 5281  ax-pr 5407

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-sb 2066  df-clab 2715  df-cleq 2728  df-clel 2810  df-ne 2934  df-ral 3053  df-rex 3062  df-rab 3421  df-v 3466  df-dif 3934  df-un 3936  df-ss 3948  df-nul 4314  df-if 4506  df-sn 4607  df-pr 4609  df-op 4613  df-br 5125  df-opab 5187  df-eprel 5558  df-xp 5665  df-rel 5666  df-cnv 5667

This theorem is referenced by:  brcnvepres  38290  eccnvepres  38303  eleccnvep  38304  cnvepres  38321  rnxrncnvepres  38423  coss2cnvepres  38441  dfcoels  38453  br1cossincnvepres  38473  br1cossxrncnvepres  38475  dfeldisj5  38744