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Theorem coss2cnvepres 38875
Description: Special case of coss1cnvres 38874. (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 38874 . 2 ( E ↾ 𝐴) = {⟨𝑢, 𝑣⟩ ∣ ((𝑢𝐴𝑣𝐴) ∧ ∃𝑥(𝑢 E 𝑥𝑣 E 𝑥))}
2 brcnvep 38637 . . . . . . 7 (𝑢 ∈ V → (𝑢 E 𝑥𝑥𝑢))
32elv 3436 . . . . . 6 (𝑢 E 𝑥𝑥𝑢)
4 brcnvep 38637 . . . . . . 7 (𝑣 ∈ V → (𝑣 E 𝑥𝑥𝑣))
54elv 3436 . . . . . 6 (𝑣 E 𝑥𝑥𝑣)
63, 5anbi12i 634 . . . . 5 ((𝑢 E 𝑥𝑣 E 𝑥) ↔ (𝑥𝑢𝑥𝑣))
76exbii 1855 . . . 4 (∃𝑥(𝑢 E 𝑥𝑣 E 𝑥) ↔ ∃𝑥(𝑥𝑢𝑥𝑣))
87anbi2i 629 . . 3 (((𝑢𝐴𝑣𝐴) ∧ ∃𝑥(𝑢 E 𝑥𝑣 E 𝑥)) ↔ ((𝑢𝐴𝑣𝐴) ∧ ∃𝑥(𝑥𝑢𝑥𝑣)))
98opabbii 5139 . 2 {⟨𝑢, 𝑣⟩ ∣ ((𝑢𝐴𝑣𝐴) ∧ ∃𝑥(𝑢 E 𝑥𝑣 E 𝑥))} = {⟨𝑢, 𝑣⟩ ∣ ((𝑢𝐴𝑣𝐴) ∧ ∃𝑥(𝑥𝑢𝑥𝑣))}
101, 9eqtri 2762 1 ( E ↾ 𝐴) = {⟨𝑢, 𝑣⟩ ∣ ((𝑢𝐴𝑣𝐴) ∧ ∃𝑥(𝑥𝑢𝑥𝑣))}
Colors of variables: wff setvar class
Syntax hints:  wb 207  wa 396   = wceq 1547  wex 1786  wcel 2119  Vcvv 3431   class class class wbr 5072  {copab 5134   E cep 5517  ccnv 5617  cres 5620  ccoss 38550
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1802  ax-4 1816  ax-5 1917  ax-6 1974  ax-7 2015  ax-8 2121  ax-9 2129  ax-ext 2711  ax-sep 5218  ax-pr 5362
This theorem depends on definitions:  df-bi 208  df-an 397  df-or 854  df-3an 1094  df-tru 1550  df-fal 1560  df-ex 1787  df-sb 2074  df-clab 2718  df-cleq 2731  df-clel 2814  df-ne 2935  df-ral 3054  df-rex 3064  df-rab 3392  df-v 3433  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-nul 4262  df-if 4455  df-sn 4556  df-pr 4558  df-op 4562  df-br 5073  df-opab 5135  df-eprel 5518  df-xp 5624  df-rel 5625  df-cnv 5626  df-res 5630  df-coss 38868
This theorem is referenced by: (None)
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