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Theorem bropfvvvvlem 8082
Description: Lemma for bropfvvvv 8083. (Contributed by AV, 31-Dec-2020.) (Revised by AV, 16-Jan-2021.)
Hypotheses
Ref Expression
bropfvvvv.o 𝑂 = (𝑎𝑈 ↦ (𝑏𝑉, 𝑐𝑊 ↦ {⟨𝑑, 𝑒⟩ ∣ 𝜑}))
bropfvvvv.oo ((𝐴𝑈𝐵𝑆𝐶𝑇) → (𝐵(𝑂𝐴)𝐶) = {⟨𝑑, 𝑒⟩ ∣ 𝜃})
Assertion
Ref Expression
bropfvvvvlem ((⟨𝐵, 𝐶⟩ ∈ (𝑆 × 𝑇) ∧ 𝐷(𝐵(𝑂𝐴)𝐶)𝐸) → (𝐴𝑈 ∧ (𝐵𝑆𝐶𝑇) ∧ (𝐷 ∈ V ∧ 𝐸 ∈ V)))
Distinct variable group:   𝑈,𝑎
Allowed substitution hints:   𝜑(𝑒,𝑎,𝑏,𝑐,𝑑)   𝜃(𝑒,𝑎,𝑏,𝑐,𝑑)   𝐴(𝑒,𝑎,𝑏,𝑐,𝑑)   𝐵(𝑒,𝑎,𝑏,𝑐,𝑑)   𝐶(𝑒,𝑎,𝑏,𝑐,𝑑)   𝐷(𝑒,𝑎,𝑏,𝑐,𝑑)   𝑆(𝑒,𝑎,𝑏,𝑐,𝑑)   𝑇(𝑒,𝑎,𝑏,𝑐,𝑑)   𝑈(𝑒,𝑏,𝑐,𝑑)   𝐸(𝑒,𝑎,𝑏,𝑐,𝑑)   𝑂(𝑒,𝑎,𝑏,𝑐,𝑑)   𝑉(𝑒,𝑎,𝑏,𝑐,𝑑)   𝑊(𝑒,𝑎,𝑏,𝑐,𝑑)

Proof of Theorem bropfvvvvlem
StepHypRef Expression
1 opelxp 5697 . . 3 (⟨𝐵, 𝐶⟩ ∈ (𝑆 × 𝑇) ↔ (𝐵𝑆𝐶𝑇))
2 brne0 5161 . . . . . . 7 (𝐷(𝐵(𝑂𝐴)𝐶)𝐸 → (𝐵(𝑂𝐴)𝐶) ≠ ∅)
3 bropfvvvv.oo . . . . . . . . . . . . . 14 ((𝐴𝑈𝐵𝑆𝐶𝑇) → (𝐵(𝑂𝐴)𝐶) = {⟨𝑑, 𝑒⟩ ∣ 𝜃})
433expb 1138 . . . . . . . . . . . . 13 ((𝐴𝑈 ∧ (𝐵𝑆𝐶𝑇)) → (𝐵(𝑂𝐴)𝐶) = {⟨𝑑, 𝑒⟩ ∣ 𝜃})
54breqd 5120 . . . . . . . . . . . 12 ((𝐴𝑈 ∧ (𝐵𝑆𝐶𝑇)) → (𝐷(𝐵(𝑂𝐴)𝐶)𝐸𝐷{⟨𝑑, 𝑒⟩ ∣ 𝜃}𝐸))
6 brabv 5551 . . . . . . . . . . . . . . 15 (𝐷{⟨𝑑, 𝑒⟩ ∣ 𝜃}𝐸 → (𝐷 ∈ V ∧ 𝐸 ∈ V))
76anim2i 628 . . . . . . . . . . . . . 14 ((𝐴𝑈𝐷{⟨𝑑, 𝑒⟩ ∣ 𝜃}𝐸) → (𝐴𝑈 ∧ (𝐷 ∈ V ∧ 𝐸 ∈ V)))
87ex 417 . . . . . . . . . . . . 13 (𝐴𝑈 → (𝐷{⟨𝑑, 𝑒⟩ ∣ 𝜃}𝐸 → (𝐴𝑈 ∧ (𝐷 ∈ V ∧ 𝐸 ∈ V))))
98adantr 485 . . . . . . . . . . . 12 ((𝐴𝑈 ∧ (𝐵𝑆𝐶𝑇)) → (𝐷{⟨𝑑, 𝑒⟩ ∣ 𝜃}𝐸 → (𝐴𝑈 ∧ (𝐷 ∈ V ∧ 𝐸 ∈ V))))
105, 9sylbid 243 . . . . . . . . . . 11 ((𝐴𝑈 ∧ (𝐵𝑆𝐶𝑇)) → (𝐷(𝐵(𝑂𝐴)𝐶)𝐸 → (𝐴𝑈 ∧ (𝐷 ∈ V ∧ 𝐸 ∈ V))))
1110ex 417 . . . . . . . . . 10 (𝐴𝑈 → ((𝐵𝑆𝐶𝑇) → (𝐷(𝐵(𝑂𝐴)𝐶)𝐸 → (𝐴𝑈 ∧ (𝐷 ∈ V ∧ 𝐸 ∈ V)))))
1211com23 87 . . . . . . . . 9 (𝐴𝑈 → (𝐷(𝐵(𝑂𝐴)𝐶)𝐸 → ((𝐵𝑆𝐶𝑇) → (𝐴𝑈 ∧ (𝐷 ∈ V ∧ 𝐸 ∈ V)))))
1312a1d 26 . . . . . . . 8 (𝐴𝑈 → ((𝐵(𝑂𝐴)𝐶) ≠ ∅ → (𝐷(𝐵(𝑂𝐴)𝐶)𝐸 → ((𝐵𝑆𝐶𝑇) → (𝐴𝑈 ∧ (𝐷 ∈ V ∧ 𝐸 ∈ V))))))
14 bropfvvvv.o . . . . . . . . . 10 𝑂 = (𝑎𝑈 ↦ (𝑏𝑉, 𝑐𝑊 ↦ {⟨𝑑, 𝑒⟩ ∣ 𝜑}))
1514fvmptndm 7021 . . . . . . . . 9 𝐴𝑈 → (𝑂𝐴) = ∅)
16 df-ov 7413 . . . . . . . . . . 11 (𝐵(𝑂𝐴)𝐶) = ((𝑂𝐴)‘⟨𝐵, 𝐶⟩)
17 fveq1 6880 . . . . . . . . . . 11 ((𝑂𝐴) = ∅ → ((𝑂𝐴)‘⟨𝐵, 𝐶⟩) = (∅‘⟨𝐵, 𝐶⟩))
1816, 17eqtrid 2810 . . . . . . . . . 10 ((𝑂𝐴) = ∅ → (𝐵(𝑂𝐴)𝐶) = (∅‘⟨𝐵, 𝐶⟩))
19 0fv 6922 . . . . . . . . . 10 (∅‘⟨𝐵, 𝐶⟩) = ∅
2018, 19eqtrdi 2814 . . . . . . . . 9 ((𝑂𝐴) = ∅ → (𝐵(𝑂𝐴)𝐶) = ∅)
21 eqneqall 2969 . . . . . . . . 9 ((𝐵(𝑂𝐴)𝐶) = ∅ → ((𝐵(𝑂𝐴)𝐶) ≠ ∅ → (𝐷(𝐵(𝑂𝐴)𝐶)𝐸 → ((𝐵𝑆𝐶𝑇) → (𝐴𝑈 ∧ (𝐷 ∈ V ∧ 𝐸 ∈ V))))))
2215, 20, 213syl 19 . . . . . . . 8 𝐴𝑈 → ((𝐵(𝑂𝐴)𝐶) ≠ ∅ → (𝐷(𝐵(𝑂𝐴)𝐶)𝐸 → ((𝐵𝑆𝐶𝑇) → (𝐴𝑈 ∧ (𝐷 ∈ V ∧ 𝐸 ∈ V))))))
2313, 22pm2.61i 184 . . . . . . 7 ((𝐵(𝑂𝐴)𝐶) ≠ ∅ → (𝐷(𝐵(𝑂𝐴)𝐶)𝐸 → ((𝐵𝑆𝐶𝑇) → (𝐴𝑈 ∧ (𝐷 ∈ V ∧ 𝐸 ∈ V)))))
242, 23mpcom 39 . . . . . 6 (𝐷(𝐵(𝑂𝐴)𝐶)𝐸 → ((𝐵𝑆𝐶𝑇) → (𝐴𝑈 ∧ (𝐷 ∈ V ∧ 𝐸 ∈ V))))
2524com12 33 . . . . 5 ((𝐵𝑆𝐶𝑇) → (𝐷(𝐵(𝑂𝐴)𝐶)𝐸 → (𝐴𝑈 ∧ (𝐷 ∈ V ∧ 𝐸 ∈ V))))
2625anc2ri 565 . . . 4 ((𝐵𝑆𝐶𝑇) → (𝐷(𝐵(𝑂𝐴)𝐶)𝐸 → ((𝐴𝑈 ∧ (𝐷 ∈ V ∧ 𝐸 ∈ V)) ∧ (𝐵𝑆𝐶𝑇))))
27 3anan32 1113 . . . 4 ((𝐴𝑈 ∧ (𝐵𝑆𝐶𝑇) ∧ (𝐷 ∈ V ∧ 𝐸 ∈ V)) ↔ ((𝐴𝑈 ∧ (𝐷 ∈ V ∧ 𝐸 ∈ V)) ∧ (𝐵𝑆𝐶𝑇)))
2826, 27imbitrrdi 255 . . 3 ((𝐵𝑆𝐶𝑇) → (𝐷(𝐵(𝑂𝐴)𝐶)𝐸 → (𝐴𝑈 ∧ (𝐵𝑆𝐶𝑇) ∧ (𝐷 ∈ V ∧ 𝐸 ∈ V))))
291, 28sylbi 220 . 2 (⟨𝐵, 𝐶⟩ ∈ (𝑆 × 𝑇) → (𝐷(𝐵(𝑂𝐴)𝐶)𝐸 → (𝐴𝑈 ∧ (𝐵𝑆𝐶𝑇) ∧ (𝐷 ∈ V ∧ 𝐸 ∈ V))))
3029imp 411 1 ((⟨𝐵, 𝐶⟩ ∈ (𝑆 × 𝑇) ∧ 𝐷(𝐵(𝑂𝐴)𝐶)𝐸) → (𝐴𝑈 ∧ (𝐵𝑆𝐶𝑇) ∧ (𝐷 ∈ V ∧ 𝐸 ∈ V)))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wa 400  w3a 1103   = wceq 1570  wcel 2143  wne 2958  Vcvv 3455  c0 4286  cop 4595   class class class wbr 5109  {copab 5173  cmpt 5192   × cxp 5659  cfv 6536  (class class class)co 7410  cmpo 7412
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1825  ax-4 1839  ax-5 1940  ax-6 1997  ax-7 2038  ax-8 2145  ax-9 2153  ax-10 2176  ax-11 2192  ax-12 2213  ax-ext 2735  ax-sep 5257  ax-nul 5269  ax-pr 5404
This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1810  df-nf 1814  df-sb 2097  df-mo 2567  df-eu 2597  df-clab 2742  df-cleq 2755  df-clel 2838  df-nfc 2912  df-ne 2959  df-ral 3080  df-rex 3090  df-rab 3417  df-v 3457  df-dif 3908  df-un 3910  df-in 3912  df-ss 3922  df-nul 4287  df-if 4488  df-sn 4590  df-pr 4592  df-op 4596  df-uni 4873  df-br 5110  df-opab 5174  df-mpt 5193  df-xp 5667  df-dm 5671  df-iota 6492  df-fv 6544  df-ov 7413
This theorem is referenced by:  bropfvvvv  8083
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