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Theorem elrnmpores 7482
Description: Membership in the range of a restricted operation class abstraction. (Contributed by Thierry Arnoux, 25-May-2019.)
Hypothesis
Ref Expression
rngop.1 𝐹 = (𝑥𝐴, 𝑦𝐵𝐶)
Assertion
Ref Expression
elrnmpores (𝐷𝑉 → (𝐷 ∈ ran (𝐹𝑅) ↔ ∃𝑥𝐴𝑦𝐵 (𝐷 = 𝐶𝑥𝑅𝑦)))
Distinct variable groups:   𝑦,𝐴   𝑥,𝑦,𝐷   𝑥,𝑅,𝑦
Allowed substitution hints:   𝐴(𝑥)   𝐵(𝑥,𝑦)   𝐶(𝑥,𝑦)   𝐹(𝑥,𝑦)   𝑉(𝑥,𝑦)

Proof of Theorem elrnmpores
Dummy variables 𝑧 𝑝 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 eqeq1 2741 . . . . . 6 (𝑧 = 𝐷 → (𝑧 = 𝐶𝐷 = 𝐶))
21anbi1d 631 . . . . 5 (𝑧 = 𝐷 → ((𝑧 = 𝐶𝑥𝑅𝑦) ↔ (𝐷 = 𝐶𝑥𝑅𝑦)))
32anbi2d 630 . . . 4 (𝑧 = 𝐷 → (((𝑥𝐴𝑦𝐵) ∧ (𝑧 = 𝐶𝑥𝑅𝑦)) ↔ ((𝑥𝐴𝑦𝐵) ∧ (𝐷 = 𝐶𝑥𝑅𝑦))))
432exbidv 1927 . . 3 (𝑧 = 𝐷 → (∃𝑥𝑦((𝑥𝐴𝑦𝐵) ∧ (𝑧 = 𝐶𝑥𝑅𝑦)) ↔ ∃𝑥𝑦((𝑥𝐴𝑦𝐵) ∧ (𝐷 = 𝐶𝑥𝑅𝑦))))
5 an12 643 . . . . . . . . . 10 ((𝑝𝑅 ∧ (𝑝 = ⟨𝑥, 𝑦⟩ ∧ ((𝑥𝐴𝑦𝐵) ∧ 𝑧 = 𝐶))) ↔ (𝑝 = ⟨𝑥, 𝑦⟩ ∧ (𝑝𝑅 ∧ ((𝑥𝐴𝑦𝐵) ∧ 𝑧 = 𝐶))))
6 an12 643 . . . . . . . . . . . 12 ((𝑝𝑅 ∧ ((𝑥𝐴𝑦𝐵) ∧ 𝑧 = 𝐶)) ↔ ((𝑥𝐴𝑦𝐵) ∧ (𝑝𝑅𝑧 = 𝐶)))
7 ancom 462 . . . . . . . . . . . . . 14 ((𝑧 = 𝐶𝑝𝑅) ↔ (𝑝𝑅𝑧 = 𝐶))
8 eleq1 2825 . . . . . . . . . . . . . . . 16 (𝑝 = ⟨𝑥, 𝑦⟩ → (𝑝𝑅 ↔ ⟨𝑥, 𝑦⟩ ∈ 𝑅))
9 df-br 5101 . . . . . . . . . . . . . . . 16 (𝑥𝑅𝑦 ↔ ⟨𝑥, 𝑦⟩ ∈ 𝑅)
108, 9bitr4di 289 . . . . . . . . . . . . . . 15 (𝑝 = ⟨𝑥, 𝑦⟩ → (𝑝𝑅𝑥𝑅𝑦))
1110anbi2d 630 . . . . . . . . . . . . . 14 (𝑝 = ⟨𝑥, 𝑦⟩ → ((𝑧 = 𝐶𝑝𝑅) ↔ (𝑧 = 𝐶𝑥𝑅𝑦)))
127, 11bitr3id 285 . . . . . . . . . . . . 13 (𝑝 = ⟨𝑥, 𝑦⟩ → ((𝑝𝑅𝑧 = 𝐶) ↔ (𝑧 = 𝐶𝑥𝑅𝑦)))
1312anbi2d 630 . . . . . . . . . . . 12 (𝑝 = ⟨𝑥, 𝑦⟩ → (((𝑥𝐴𝑦𝐵) ∧ (𝑝𝑅𝑧 = 𝐶)) ↔ ((𝑥𝐴𝑦𝐵) ∧ (𝑧 = 𝐶𝑥𝑅𝑦))))
146, 13bitrid 283 . . . . . . . . . . 11 (𝑝 = ⟨𝑥, 𝑦⟩ → ((𝑝𝑅 ∧ ((𝑥𝐴𝑦𝐵) ∧ 𝑧 = 𝐶)) ↔ ((𝑥𝐴𝑦𝐵) ∧ (𝑧 = 𝐶𝑥𝑅𝑦))))
1514pm5.32i 576 . . . . . . . . . 10 ((𝑝 = ⟨𝑥, 𝑦⟩ ∧ (𝑝𝑅 ∧ ((𝑥𝐴𝑦𝐵) ∧ 𝑧 = 𝐶))) ↔ (𝑝 = ⟨𝑥, 𝑦⟩ ∧ ((𝑥𝐴𝑦𝐵) ∧ (𝑧 = 𝐶𝑥𝑅𝑦))))
165, 15bitri 275 . . . . . . . . 9 ((𝑝𝑅 ∧ (𝑝 = ⟨𝑥, 𝑦⟩ ∧ ((𝑥𝐴𝑦𝐵) ∧ 𝑧 = 𝐶))) ↔ (𝑝 = ⟨𝑥, 𝑦⟩ ∧ ((𝑥𝐴𝑦𝐵) ∧ (𝑧 = 𝐶𝑥𝑅𝑦))))
17162exbii 1851 . . . . . . . 8 (∃𝑥𝑦(𝑝𝑅 ∧ (𝑝 = ⟨𝑥, 𝑦⟩ ∧ ((𝑥𝐴𝑦𝐵) ∧ 𝑧 = 𝐶))) ↔ ∃𝑥𝑦(𝑝 = ⟨𝑥, 𝑦⟩ ∧ ((𝑥𝐴𝑦𝐵) ∧ (𝑧 = 𝐶𝑥𝑅𝑦))))
18 19.42vv 1961 . . . . . . . 8 (∃𝑥𝑦(𝑝𝑅 ∧ (𝑝 = ⟨𝑥, 𝑦⟩ ∧ ((𝑥𝐴𝑦𝐵) ∧ 𝑧 = 𝐶))) ↔ (𝑝𝑅 ∧ ∃𝑥𝑦(𝑝 = ⟨𝑥, 𝑦⟩ ∧ ((𝑥𝐴𝑦𝐵) ∧ 𝑧 = 𝐶))))
1917, 18bitr3i 277 . . . . . . 7 (∃𝑥𝑦(𝑝 = ⟨𝑥, 𝑦⟩ ∧ ((𝑥𝐴𝑦𝐵) ∧ (𝑧 = 𝐶𝑥𝑅𝑦))) ↔ (𝑝𝑅 ∧ ∃𝑥𝑦(𝑝 = ⟨𝑥, 𝑦⟩ ∧ ((𝑥𝐴𝑦𝐵) ∧ 𝑧 = 𝐶))))
2019opabbii 5167 . . . . . 6 {⟨𝑝, 𝑧⟩ ∣ ∃𝑥𝑦(𝑝 = ⟨𝑥, 𝑦⟩ ∧ ((𝑥𝐴𝑦𝐵) ∧ (𝑧 = 𝐶𝑥𝑅𝑦)))} = {⟨𝑝, 𝑧⟩ ∣ (𝑝𝑅 ∧ ∃𝑥𝑦(𝑝 = ⟨𝑥, 𝑦⟩ ∧ ((𝑥𝐴𝑦𝐵) ∧ 𝑧 = 𝐶)))}
21 dfoprab2 7404 . . . . . 6 {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ ((𝑥𝐴𝑦𝐵) ∧ (𝑧 = 𝐶𝑥𝑅𝑦))} = {⟨𝑝, 𝑧⟩ ∣ ∃𝑥𝑦(𝑝 = ⟨𝑥, 𝑦⟩ ∧ ((𝑥𝐴𝑦𝐵) ∧ (𝑧 = 𝐶𝑥𝑅𝑦)))}
22 rngop.1 . . . . . . . . 9 𝐹 = (𝑥𝐴, 𝑦𝐵𝐶)
23 df-mpo 7351 . . . . . . . . 9 (𝑥𝐴, 𝑦𝐵𝐶) = {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ ((𝑥𝐴𝑦𝐵) ∧ 𝑧 = 𝐶)}
24 dfoprab2 7404 . . . . . . . . 9 {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ ((𝑥𝐴𝑦𝐵) ∧ 𝑧 = 𝐶)} = {⟨𝑝, 𝑧⟩ ∣ ∃𝑥𝑦(𝑝 = ⟨𝑥, 𝑦⟩ ∧ ((𝑥𝐴𝑦𝐵) ∧ 𝑧 = 𝐶))}
2522, 23, 243eqtri 2769 . . . . . . . 8 𝐹 = {⟨𝑝, 𝑧⟩ ∣ ∃𝑥𝑦(𝑝 = ⟨𝑥, 𝑦⟩ ∧ ((𝑥𝐴𝑦𝐵) ∧ 𝑧 = 𝐶))}
2625reseq1i 5926 . . . . . . 7 (𝐹𝑅) = ({⟨𝑝, 𝑧⟩ ∣ ∃𝑥𝑦(𝑝 = ⟨𝑥, 𝑦⟩ ∧ ((𝑥𝐴𝑦𝐵) ∧ 𝑧 = 𝐶))} ↾ 𝑅)
27 resopab 5981 . . . . . . 7 ({⟨𝑝, 𝑧⟩ ∣ ∃𝑥𝑦(𝑝 = ⟨𝑥, 𝑦⟩ ∧ ((𝑥𝐴𝑦𝐵) ∧ 𝑧 = 𝐶))} ↾ 𝑅) = {⟨𝑝, 𝑧⟩ ∣ (𝑝𝑅 ∧ ∃𝑥𝑦(𝑝 = ⟨𝑥, 𝑦⟩ ∧ ((𝑥𝐴𝑦𝐵) ∧ 𝑧 = 𝐶)))}
2826, 27eqtri 2765 . . . . . 6 (𝐹𝑅) = {⟨𝑝, 𝑧⟩ ∣ (𝑝𝑅 ∧ ∃𝑥𝑦(𝑝 = ⟨𝑥, 𝑦⟩ ∧ ((𝑥𝐴𝑦𝐵) ∧ 𝑧 = 𝐶)))}
2920, 21, 283eqtr4ri 2776 . . . . 5 (𝐹𝑅) = {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ ((𝑥𝐴𝑦𝐵) ∧ (𝑧 = 𝐶𝑥𝑅𝑦))}
3029rneqi 5885 . . . 4 ran (𝐹𝑅) = ran {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ ((𝑥𝐴𝑦𝐵) ∧ (𝑧 = 𝐶𝑥𝑅𝑦))}
31 rnoprab 7449 . . . 4 ran {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ ((𝑥𝐴𝑦𝐵) ∧ (𝑧 = 𝐶𝑥𝑅𝑦))} = {𝑧 ∣ ∃𝑥𝑦((𝑥𝐴𝑦𝐵) ∧ (𝑧 = 𝐶𝑥𝑅𝑦))}
3230, 31eqtri 2765 . . 3 ran (𝐹𝑅) = {𝑧 ∣ ∃𝑥𝑦((𝑥𝐴𝑦𝐵) ∧ (𝑧 = 𝐶𝑥𝑅𝑦))}
334, 32elab2g 3627 . 2 (𝐷𝑉 → (𝐷 ∈ ran (𝐹𝑅) ↔ ∃𝑥𝑦((𝑥𝐴𝑦𝐵) ∧ (𝐷 = 𝐶𝑥𝑅𝑦))))
34 r2ex 3190 . 2 (∃𝑥𝐴𝑦𝐵 (𝐷 = 𝐶𝑥𝑅𝑦) ↔ ∃𝑥𝑦((𝑥𝐴𝑦𝐵) ∧ (𝐷 = 𝐶𝑥𝑅𝑦)))
3533, 34bitr4di 289 1 (𝐷𝑉 → (𝐷 ∈ ran (𝐹𝑅) ↔ ∃𝑥𝐴𝑦𝐵 (𝐷 = 𝐶𝑥𝑅𝑦)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 205  wa 397   = wceq 1541  wex 1781  wcel 2106  {cab 2714  wrex 3071  cop 4587   class class class wbr 5100  {copab 5162  ran crn 5628  cres 5629  {coprab 7347  cmpo 7348
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 1913  ax-6 1971  ax-7 2011  ax-8 2108  ax-9 2116  ax-10 2137  ax-11 2154  ax-12 2171  ax-ext 2708  ax-sep 5251  ax-nul 5258  ax-pr 5379
This theorem depends on definitions:  df-bi 206  df-an 398  df-or 846  df-3an 1089  df-tru 1544  df-fal 1554  df-ex 1782  df-nf 1786  df-sb 2068  df-mo 2539  df-eu 2568  df-clab 2715  df-cleq 2729  df-clel 2815  df-nfc 2887  df-ral 3063  df-rex 3072  df-rab 3406  df-v 3445  df-dif 3908  df-un 3910  df-in 3912  df-ss 3922  df-nul 4278  df-if 4482  df-sn 4582  df-pr 4584  df-op 4588  df-br 5101  df-opab 5163  df-xp 5633  df-rel 5634  df-cnv 5635  df-dm 5637  df-rn 5638  df-res 5639  df-oprab 7350  df-mpo 7351
This theorem is referenced by: (None)
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