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Theorem coss2cnvepres 38829
Description: Special case of coss1cnvres 38828. (Contributed by Peter Mazsa, 8-Jun-2020.)
Assertion
Ref Expression
coss2cnvepres ( E ↾ 𝐴) = {⟨𝑢, 𝑣⟩ ∣ ((𝑢𝐴𝑣𝐴) ∧ ∃𝑥(𝑥𝑢𝑥𝑣))}
Distinct variable group:   𝑢,𝐴,𝑣,𝑥

Proof of Theorem coss2cnvepres
StepHypRef Expression
1 coss1cnvres 38828 . 2 ( E ↾ 𝐴) = {⟨𝑢, 𝑣⟩ ∣ ((𝑢𝐴𝑣𝐴) ∧ ∃𝑥(𝑢 E 𝑥𝑣 E 𝑥))}
2 brcnvep 38591 . . . . . . 7 (𝑢 ∈ V → (𝑢 E 𝑥𝑥𝑢))
32elv 3434 . . . . . 6 (𝑢 E 𝑥𝑥𝑢)
4 brcnvep 38591 . . . . . . 7 (𝑣 ∈ V → (𝑣 E 𝑥𝑥𝑣))
54elv 3434 . . . . . 6 (𝑣 E 𝑥𝑥𝑣)
63, 5anbi12i 629 . . . . 5 ((𝑢 E 𝑥𝑣 E 𝑥) ↔ (𝑥𝑢𝑥𝑣))
76exbii 1850 . . . 4 (∃𝑥(𝑢 E 𝑥𝑣 E 𝑥) ↔ ∃𝑥(𝑥𝑢𝑥𝑣))
87anbi2i 624 . . 3 (((𝑢𝐴𝑣𝐴) ∧ ∃𝑥(𝑢 E 𝑥𝑣 E 𝑥)) ↔ ((𝑢𝐴𝑣𝐴) ∧ ∃𝑥(𝑥𝑢𝑥𝑣)))
98opabbii 5152 . 2 {⟨𝑢, 𝑣⟩ ∣ ((𝑢𝐴𝑣𝐴) ∧ ∃𝑥(𝑢 E 𝑥𝑣 E 𝑥))} = {⟨𝑢, 𝑣⟩ ∣ ((𝑢𝐴𝑣𝐴) ∧ ∃𝑥(𝑥𝑢𝑥𝑣))}
101, 9eqtri 2759 1 ( E ↾ 𝐴) = {⟨𝑢, 𝑣⟩ ∣ ((𝑢𝐴𝑣𝐴) ∧ ∃𝑥(𝑥𝑢𝑥𝑣))}
Colors of variables: wff setvar class
Syntax hints:  wb 206  wa 395   = wceq 1542  wex 1781  wcel 2114  Vcvv 3429   class class class wbr 5085  {copab 5147   E cep 5530  ccnv 5630  cres 5633  ccoss 38504
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-ext 2708  ax-sep 5231  ax-pr 5375
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-sb 2069  df-clab 2715  df-cleq 2728  df-clel 2811  df-ne 2933  df-ral 3052  df-rex 3062  df-rab 3390  df-v 3431  df-dif 3892  df-un 3894  df-in 3896  df-ss 3906  df-nul 4274  df-if 4467  df-sn 4568  df-pr 4570  df-op 4574  df-br 5086  df-opab 5148  df-eprel 5531  df-xp 5637  df-rel 5638  df-cnv 5639  df-res 5643  df-coss 38822
This theorem is referenced by: (None)
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