Theorem cvmlift2lem4 35620

Description: Lemma for cvmlift2 35630. (Contributed by Mario Carneiro, 1-Jun-2015.)

Hypotheses

Ref	Expression
cvmlift2.b	⊢ 𝐵 = ∪ 𝐶
cvmlift2.f	⊢ (𝜑 → 𝐹 ∈ (𝐶 CovMap 𝐽))
cvmlift2.g	⊢ (𝜑 → 𝐺 ∈ ((II ×t II) Cn 𝐽))
cvmlift2.p	⊢ (𝜑 → 𝑃 ∈ 𝐵)
cvmlift2.i	⊢ (𝜑 → (𝐹‘𝑃) = (0𝐺0))
cvmlift2.h	⊢ 𝐻 = (℩𝑓 ∈ (II Cn 𝐶)((𝐹 ∘ 𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑧𝐺0)) ∧ (𝑓‘0) = 𝑃))
cvmlift2.k	⊢ 𝐾 = (𝑥 ∈ (0[,]1), 𝑦 ∈ (0[,]1) ↦ ((℩𝑓 ∈ (II Cn 𝐶)((𝐹 ∘ 𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑥𝐺𝑧)) ∧ (𝑓‘0) = (𝐻‘𝑥)))‘𝑦))

Assertion

Ref	Expression
cvmlift2lem4	⊢ ((𝑋 ∈ (0[,]1) ∧ 𝑌 ∈ (0[,]1)) → (𝑋𝐾𝑌) = ((℩𝑓 ∈ (II Cn 𝐶)((𝐹 ∘ 𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑋𝐺𝑧)) ∧ (𝑓‘0) = (𝐻‘𝑋)))‘𝑌))

Distinct variable groups:   𝑥,𝑓,𝑦,𝑧,𝐹   𝜑,𝑓,𝑥,𝑦,𝑧   𝑓,𝐽,𝑥,𝑦,𝑧   𝑓,𝐺,𝑥,𝑦,𝑧   𝑓,𝐻,𝑥,𝑦,𝑧   𝑓,𝑋,𝑥,𝑦,𝑧   𝐶,𝑓,𝑥,𝑦,𝑧   𝑃,𝑓,𝑥,𝑦,𝑧   𝑥,𝐵,𝑦,𝑧   𝑓,𝑌,𝑥,𝑦,𝑧   𝑓,𝐾,𝑥,𝑦,𝑧

Allowed substitution hint:   𝐵(𝑓)

Proof of Theorem cvmlift2lem4

Step	Hyp	Ref	Expression
1		oveq1 7399	. . . . . . 7 ⊢ (𝑥 = 𝑋 → (𝑥𝐺𝑧) = (𝑋𝐺𝑧))
2	1	mpteq2dv 5193	. . . . . 6 ⊢ (𝑥 = 𝑋 → (𝑧 ∈ (0[,]1) ↦ (𝑥𝐺𝑧)) = (𝑧 ∈ (0[,]1) ↦ (𝑋𝐺𝑧)))
3	2	eqeq2d 2772	. . . . 5 ⊢ (𝑥 = 𝑋 → ((𝐹 ∘ 𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑥𝐺𝑧)) ↔ (𝐹 ∘ 𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑋𝐺𝑧))))
4		fveq2 6863	. . . . . 6 ⊢ (𝑥 = 𝑋 → (𝐻‘𝑥) = (𝐻‘𝑋))
5	4	eqeq2d 2772	. . . . 5 ⊢ (𝑥 = 𝑋 → ((𝑓‘0) = (𝐻‘𝑥) ↔ (𝑓‘0) = (𝐻‘𝑋)))
6	3, 5	anbi12d 641	. . . 4 ⊢ (𝑥 = 𝑋 → (((𝐹 ∘ 𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑥𝐺𝑧)) ∧ (𝑓‘0) = (𝐻‘𝑥)) ↔ ((𝐹 ∘ 𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑋𝐺𝑧)) ∧ (𝑓‘0) = (𝐻‘𝑋))))
7	6	riotabidv 7351	. . 3 ⊢ (𝑥 = 𝑋 → (℩𝑓 ∈ (II Cn 𝐶)((𝐹 ∘ 𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑥𝐺𝑧)) ∧ (𝑓‘0) = (𝐻‘𝑥))) = (℩𝑓 ∈ (II Cn 𝐶)((𝐹 ∘ 𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑋𝐺𝑧)) ∧ (𝑓‘0) = (𝐻‘𝑋))))
8	7	fveq1d 6865	. 2 ⊢ (𝑥 = 𝑋 → ((℩𝑓 ∈ (II Cn 𝐶)((𝐹 ∘ 𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑥𝐺𝑧)) ∧ (𝑓‘0) = (𝐻‘𝑥)))‘𝑦) = ((℩𝑓 ∈ (II Cn 𝐶)((𝐹 ∘ 𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑋𝐺𝑧)) ∧ (𝑓‘0) = (𝐻‘𝑋)))‘𝑦))
9		fveq2 6863	. 2 ⊢ (𝑦 = 𝑌 → ((℩𝑓 ∈ (II Cn 𝐶)((𝐹 ∘ 𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑋𝐺𝑧)) ∧ (𝑓‘0) = (𝐻‘𝑋)))‘𝑦) = ((℩𝑓 ∈ (II Cn 𝐶)((𝐹 ∘ 𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑋𝐺𝑧)) ∧ (𝑓‘0) = (𝐻‘𝑋)))‘𝑌))
10		cvmlift2.k	. 2 ⊢ 𝐾 = (𝑥 ∈ (0[,]1), 𝑦 ∈ (0[,]1) ↦ ((℩𝑓 ∈ (II Cn 𝐶)((𝐹 ∘ 𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑥𝐺𝑧)) ∧ (𝑓‘0) = (𝐻‘𝑥)))‘𝑦))
11		fvex 6876	. 2 ⊢ ((℩𝑓 ∈ (II Cn 𝐶)((𝐹 ∘ 𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑋𝐺𝑧)) ∧ (𝑓‘0) = (𝐻‘𝑋)))‘𝑌) ∈ V
12	8, 9, 10, 11	ovmpo 7552	1 ⊢ ((𝑋 ∈ (0[,]1) ∧ 𝑌 ∈ (0[,]1)) → (𝑋𝐾𝑌) = ((℩𝑓 ∈ (II Cn 𝐶)((𝐹 ∘ 𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑋𝐺𝑧)) ∧ (𝑓‘0) = (𝐻‘𝑋)))‘𝑌))

Syntax hints:   → wi 4   ∧ wa 399   = wceq 1559   ∈ wcel 2141  ∪ cuni 4864   ↦ cmpt 5180   ∘ ccom 5649  ‘cfv 6517  ℩crio 7348  (class class class)co 7392   ∈ cmpo 7394  0cc0 11070  1c1 11071  [,]cicc 13349   Cn ccn 23264   ×_t ctx 23600  IIcii 24917   CovMap ccvm 35569

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1814  ax-4 1828  ax-5 1929  ax-6 1986  ax-7 2027  ax-8 2143  ax-9 2151  ax-10 2174  ax-11 2190  ax-12 2211  ax-ext 2733  ax-sep 5245  ax-nul 5255  ax-pr 5389

This theorem depends on definitions:  df-bi 209  df-an 400  df-or 859  df-3an 1099  df-tru 1562  df-fal 1572  df-ex 1799  df-nf 1803  df-sb 2090  df-mo 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-nfc 2910  df-ne 2957  df-ral 3076  df-rex 3086  df-rab 3414  df-v 3455  df-sbc 3745  df-dif 3907  df-un 3909  df-in 3911  df-ss 3921  df-nul 4286  df-if 4480  df-sn 4582  df-pr 4584  df-op 4588  df-uni 4865  df-br 5100  df-opab 5162  df-mpt 5181  df-id 5540  df-xp 5651  df-rel 5652  df-cnv 5653  df-co 5654  df-dm 5655  df-iota 6473  df-fun 6519  df-fv 6525  df-riota 7349  df-ov 7395  df-oprab 7396  df-mpo 7397

This theorem is referenced by:  cvmlift2lem6  35622  cvmlift2lem8  35624