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Theorem opelopab3 36226
Description: Ordered pair membership in an ordered pair class abstraction, with a reduced hypothesis. (Contributed by Jeff Madsen, 29-May-2011.)
Hypotheses
Ref Expression
opelopab3.1 (𝑥 = 𝐴 → (𝜑𝜓))
opelopab3.2 (𝑦 = 𝐵 → (𝜓𝜒))
opelopab3.3 (𝜒𝐴𝐶)
Assertion
Ref Expression
opelopab3 (𝐵𝐷 → (⟨𝐴, 𝐵⟩ ∈ {⟨𝑥, 𝑦⟩ ∣ 𝜑} ↔ 𝜒))
Distinct variable groups:   𝑥,𝐴,𝑦   𝑥,𝐵,𝑦   𝜒,𝑥,𝑦
Allowed substitution hints:   𝜑(𝑥,𝑦)   𝜓(𝑥,𝑦)   𝐶(𝑥,𝑦)   𝐷(𝑥,𝑦)

Proof of Theorem opelopab3
StepHypRef Expression
1 elopaelxp 5725 . . . . 5 (⟨𝐴, 𝐵⟩ ∈ {⟨𝑥, 𝑦⟩ ∣ 𝜑} → ⟨𝐴, 𝐵⟩ ∈ (V × V))
2 opelxp1 5678 . . . . 5 (⟨𝐴, 𝐵⟩ ∈ (V × V) → 𝐴 ∈ V)
31, 2syl 17 . . . 4 (⟨𝐴, 𝐵⟩ ∈ {⟨𝑥, 𝑦⟩ ∣ 𝜑} → 𝐴 ∈ V)
43anim1i 616 . . 3 ((⟨𝐴, 𝐵⟩ ∈ {⟨𝑥, 𝑦⟩ ∣ 𝜑} ∧ 𝐵𝐷) → (𝐴 ∈ V ∧ 𝐵𝐷))
54ancoms 460 . 2 ((𝐵𝐷 ∧ ⟨𝐴, 𝐵⟩ ∈ {⟨𝑥, 𝑦⟩ ∣ 𝜑}) → (𝐴 ∈ V ∧ 𝐵𝐷))
6 opelopab3.3 . . . . 5 (𝜒𝐴𝐶)
76elexd 3467 . . . 4 (𝜒𝐴 ∈ V)
87anim1i 616 . . 3 ((𝜒𝐵𝐷) → (𝐴 ∈ V ∧ 𝐵𝐷))
98ancoms 460 . 2 ((𝐵𝐷𝜒) → (𝐴 ∈ V ∧ 𝐵𝐷))
10 opelopab3.1 . . 3 (𝑥 = 𝐴 → (𝜑𝜓))
11 opelopab3.2 . . 3 (𝑦 = 𝐵 → (𝜓𝜒))
1210, 11opelopabg 5499 . 2 ((𝐴 ∈ V ∧ 𝐵𝐷) → (⟨𝐴, 𝐵⟩ ∈ {⟨𝑥, 𝑦⟩ ∣ 𝜑} ↔ 𝜒))
135, 9, 12pm5.21nd 801 1 (𝐵𝐷 → (⟨𝐴, 𝐵⟩ ∈ {⟨𝑥, 𝑦⟩ ∣ 𝜑} ↔ 𝜒))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 205  wa 397   = wceq 1542  wcel 2107  Vcvv 3447  cop 4596  {copab 5171   × cxp 5635
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2109  ax-9 2117  ax-ext 2704  ax-sep 5260  ax-nul 5267  ax-pr 5388
This theorem depends on definitions:  df-bi 206  df-an 398  df-or 847  df-3an 1090  df-tru 1545  df-fal 1555  df-ex 1783  df-sb 2069  df-clab 2711  df-cleq 2725  df-clel 2811  df-ral 3062  df-rex 3071  df-rab 3407  df-v 3449  df-dif 3917  df-un 3919  df-in 3921  df-ss 3931  df-nul 4287  df-if 4491  df-sn 4591  df-pr 4593  df-op 4597  df-opab 5172  df-xp 5643
This theorem is referenced by: (None)
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