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Theorem ov2gf 5548
Description: The value of an operation class abstraction. A version of ovmpt2g 5558 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 = (x 𝐶, y 𝐷𝑅)
Assertion
Ref Expression
ov2gf ((A 𝐶 B 𝐷 𝑆 𝐻) → (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 2543 . . 3 (𝑆 𝐻𝑆 V)
2 ov2gf.a . . . 4 xA
3 ov2gf.c . . . 4 yA
4 ov2gf.d . . . 4 yB
5 ov2gf.1 . . . . . 6 x𝐺
65nfel1 2170 . . . . 5 x 𝐺 V
7 ov2gf.5 . . . . . . . 8 𝐹 = (x 𝐶, y 𝐷𝑅)
8 nfmpt21 5494 . . . . . . . 8 x(x 𝐶, y 𝐷𝑅)
97, 8nfcxfr 2157 . . . . . . 7 x𝐹
10 nfcv 2160 . . . . . . 7 xy
112, 9, 10nfov 5459 . . . . . 6 x(A𝐹y)
1211, 5nfeq 2167 . . . . 5 x(A𝐹y) = 𝐺
136, 12nfim 1446 . . . 4 x(𝐺 V → (A𝐹y) = 𝐺)
14 ov2gf.2 . . . . . 6 y𝑆
1514nfel1 2170 . . . . 5 y 𝑆 V
16 nfmpt22 5495 . . . . . . . 8 y(x 𝐶, y 𝐷𝑅)
177, 16nfcxfr 2157 . . . . . . 7 y𝐹
183, 17, 4nfov 5459 . . . . . 6 y(A𝐹B)
1918, 14nfeq 2167 . . . . 5 y(A𝐹B) = 𝑆
2015, 19nfim 1446 . . . 4 y(𝑆 V → (A𝐹B) = 𝑆)
21 ov2gf.3 . . . . . 6 (x = A𝑅 = 𝐺)
2221eleq1d 2088 . . . . 5 (x = A → (𝑅 V ↔ 𝐺 V))
23 oveq1 5443 . . . . . 6 (x = A → (x𝐹y) = (A𝐹y))
2423, 21eqeq12d 2036 . . . . 5 (x = A → ((x𝐹y) = 𝑅 ↔ (A𝐹y) = 𝐺))
2522, 24imbi12d 223 . . . 4 (x = A → ((𝑅 V → (x𝐹y) = 𝑅) ↔ (𝐺 V → (A𝐹y) = 𝐺)))
26 ov2gf.4 . . . . . 6 (y = B𝐺 = 𝑆)
2726eleq1d 2088 . . . . 5 (y = B → (𝐺 V ↔ 𝑆 V))
28 oveq2 5444 . . . . . 6 (y = B → (A𝐹y) = (A𝐹B))
2928, 26eqeq12d 2036 . . . . 5 (y = B → ((A𝐹y) = 𝐺 ↔ (A𝐹B) = 𝑆))
3027, 29imbi12d 223 . . . 4 (y = B → ((𝐺 V → (A𝐹y) = 𝐺) ↔ (𝑆 V → (A𝐹B) = 𝑆)))
317ovmpt4g 5546 . . . . 5 ((x 𝐶 y 𝐷 𝑅 V) → (x𝐹y) = 𝑅)
32313expia 1092 . . . 4 ((x 𝐶 y 𝐷) → (𝑅 V → (x𝐹y) = 𝑅))
332, 3, 4, 13, 20, 25, 30, 32vtocl2gaf 2597 . . 3 ((A 𝐶 B 𝐷) → (𝑆 V → (A𝐹B) = 𝑆))
341, 33syl5 28 . 2 ((A 𝐶 B 𝐷) → (𝑆 𝐻 → (A𝐹B) = 𝑆))
35343impia 1087 1 ((A 𝐶 B 𝐷 𝑆 𝐻) → (A𝐹B) = 𝑆)
Colors of variables: wff set class
Syntax hints:  wi 4   wa 97   w3a 873   = wceq 1228   wcel 1374  wnfc 2147  Vcvv 2535  (class class class)co 5436  cmpt2 5438
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101  ax-in1 532  ax-in2 533  ax-io 617  ax-5 1316  ax-7 1317  ax-gen 1318  ax-ie1 1363  ax-ie2 1364  ax-8 1376  ax-10 1377  ax-11 1378  ax-i12 1379  ax-bnd 1380  ax-4 1381  ax-14 1386  ax-17 1400  ax-i9 1404  ax-ial 1409  ax-i5r 1410  ax-ext 2004  ax-sep 3849  ax-pow 3901  ax-pr 3918  ax-setind 4204
This theorem depends on definitions:  df-bi 110  df-3an 875  df-tru 1231  df-fal 1234  df-nf 1330  df-sb 1628  df-eu 1885  df-mo 1886  df-clab 2009  df-cleq 2015  df-clel 2018  df-nfc 2149  df-ne 2188  df-ral 2289  df-rex 2290  df-v 2537  df-sbc 2742  df-dif 2897  df-un 2899  df-in 2901  df-ss 2908  df-pw 3336  df-sn 3356  df-pr 3357  df-op 3359  df-uni 3555  df-br 3739  df-opab 3793  df-id 4004  df-xp 4278  df-rel 4279  df-cnv 4280  df-co 4281  df-dm 4282  df-iota 4794  df-fun 4831  df-fv 4837  df-ov 5439  df-oprab 5440  df-mpt2 5441
This theorem is referenced by: (None)
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