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Theorem ov2gf 6683
 Description: The value of an operation class abstraction. A version of ovmpt2g 6693 using bound-variable hypotheses. (Contributed by NM, 17-Aug-2006.) (Revised by Mario Carneiro, 19-Dec-2013.)
Hypotheses
Ref Expression
ov2gf.a 𝑥𝐴
ov2gf.c 𝑦𝐴
ov2gf.d 𝑦𝐵
ov2gf.1 𝑥𝐺
ov2gf.2 𝑦𝑆
ov2gf.3 (𝑥 = 𝐴𝑅 = 𝐺)
ov2gf.4 (𝑦 = 𝐵𝐺 = 𝑆)
ov2gf.5 𝐹 = (𝑥𝐶, 𝑦𝐷𝑅)
Assertion
Ref Expression
ov2gf ((𝐴𝐶𝐵𝐷𝑆𝐻) → (𝐴𝐹𝐵) = 𝑆)
Distinct variable groups:   𝑥,𝑦,𝐶   𝑥,𝐷,𝑦
Allowed substitution hints:   𝐴(𝑥,𝑦)   𝐵(𝑥,𝑦)   𝑅(𝑥,𝑦)   𝑆(𝑥,𝑦)   𝐹(𝑥,𝑦)   𝐺(𝑥,𝑦)   𝐻(𝑥,𝑦)

Proof of Theorem ov2gf
StepHypRef Expression
1 elex 3185 . . 3 (𝑆𝐻𝑆 ∈ V)
2 ov2gf.a . . . 4 𝑥𝐴
3 ov2gf.c . . . 4 𝑦𝐴
4 ov2gf.d . . . 4 𝑦𝐵
5 ov2gf.1 . . . . . 6 𝑥𝐺
65nfel1 2765 . . . . 5 𝑥 𝐺 ∈ V
7 ov2gf.5 . . . . . . . 8 𝐹 = (𝑥𝐶, 𝑦𝐷𝑅)
8 nfmpt21 6620 . . . . . . . 8 𝑥(𝑥𝐶, 𝑦𝐷𝑅)
97, 8nfcxfr 2749 . . . . . . 7 𝑥𝐹
10 nfcv 2751 . . . . . . 7 𝑥𝑦
112, 9, 10nfov 6575 . . . . . 6 𝑥(𝐴𝐹𝑦)
1211, 5nfeq 2762 . . . . 5 𝑥(𝐴𝐹𝑦) = 𝐺
136, 12nfim 1813 . . . 4 𝑥(𝐺 ∈ V → (𝐴𝐹𝑦) = 𝐺)
14 ov2gf.2 . . . . . 6 𝑦𝑆
1514nfel1 2765 . . . . 5 𝑦 𝑆 ∈ V
16 nfmpt22 6621 . . . . . . . 8 𝑦(𝑥𝐶, 𝑦𝐷𝑅)
177, 16nfcxfr 2749 . . . . . . 7 𝑦𝐹
183, 17, 4nfov 6575 . . . . . 6 𝑦(𝐴𝐹𝐵)
1918, 14nfeq 2762 . . . . 5 𝑦(𝐴𝐹𝐵) = 𝑆
2015, 19nfim 1813 . . . 4 𝑦(𝑆 ∈ V → (𝐴𝐹𝐵) = 𝑆)
21 ov2gf.3 . . . . . 6 (𝑥 = 𝐴𝑅 = 𝐺)
2221eleq1d 2672 . . . . 5 (𝑥 = 𝐴 → (𝑅 ∈ V ↔ 𝐺 ∈ V))
23 oveq1 6556 . . . . . 6 (𝑥 = 𝐴 → (𝑥𝐹𝑦) = (𝐴𝐹𝑦))
2423, 21eqeq12d 2625 . . . . 5 (𝑥 = 𝐴 → ((𝑥𝐹𝑦) = 𝑅 ↔ (𝐴𝐹𝑦) = 𝐺))
2522, 24imbi12d 333 . . . 4 (𝑥 = 𝐴 → ((𝑅 ∈ V → (𝑥𝐹𝑦) = 𝑅) ↔ (𝐺 ∈ V → (𝐴𝐹𝑦) = 𝐺)))
26 ov2gf.4 . . . . . 6 (𝑦 = 𝐵𝐺 = 𝑆)
2726eleq1d 2672 . . . . 5 (𝑦 = 𝐵 → (𝐺 ∈ V ↔ 𝑆 ∈ V))
28 oveq2 6557 . . . . . 6 (𝑦 = 𝐵 → (𝐴𝐹𝑦) = (𝐴𝐹𝐵))
2928, 26eqeq12d 2625 . . . . 5 (𝑦 = 𝐵 → ((𝐴𝐹𝑦) = 𝐺 ↔ (𝐴𝐹𝐵) = 𝑆))
3027, 29imbi12d 333 . . . 4 (𝑦 = 𝐵 → ((𝐺 ∈ V → (𝐴𝐹𝑦) = 𝐺) ↔ (𝑆 ∈ V → (𝐴𝐹𝐵) = 𝑆)))
317ovmpt4g 6681 . . . . 5 ((𝑥𝐶𝑦𝐷𝑅 ∈ V) → (𝑥𝐹𝑦) = 𝑅)
32313expia 1259 . . . 4 ((𝑥𝐶𝑦𝐷) → (𝑅 ∈ V → (𝑥𝐹𝑦) = 𝑅))
332, 3, 4, 13, 20, 25, 30, 32vtocl2gaf 3246 . . 3 ((𝐴𝐶𝐵𝐷) → (𝑆 ∈ V → (𝐴𝐹𝐵) = 𝑆))
341, 33syl5 33 . 2 ((𝐴𝐶𝐵𝐷) → (𝑆𝐻 → (𝐴𝐹𝐵) = 𝑆))
35343impia 1253 1 ((𝐴𝐶𝐵𝐷𝑆𝐻) → (𝐴𝐹𝐵) = 𝑆)
 Colors of variables: wff setvar class Syntax hints:   → wi 4   ∧ wa 383   ∧ w3a 1031   = wceq 1475   ∈ wcel 1977  Ⅎwnfc 2738  Vcvv 3173  (class class class)co 6549   ↦ cmpt2 6551 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-9 1986  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590  ax-sep 4709  ax-nul 4717  ax-pr 4833 This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3an 1033  df-tru 1478  df-ex 1696  df-nf 1701  df-sb 1868  df-eu 2462  df-mo 2463  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-ral 2901  df-rex 2902  df-rab 2905  df-v 3175  df-sbc 3403  df-dif 3543  df-un 3545  df-in 3547  df-ss 3554  df-nul 3875  df-if 4037  df-sn 4126  df-pr 4128  df-op 4132  df-uni 4373  df-br 4584  df-opab 4644  df-id 4953  df-xp 5044  df-rel 5045  df-cnv 5046  df-co 5047  df-dm 5048  df-iota 5768  df-fun 5806  df-fv 5812  df-ov 6552  df-oprab 6553  df-mpt2 6554 This theorem is referenced by: (None)
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