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Theorem ptcmplem3 23205
Description: Lemma for ptcmp 23209. (Contributed by Mario Carneiro, 26-Aug-2015.)
Hypotheses
Ref Expression
ptcmp.1 𝑆 = (𝑘𝐴, 𝑢 ∈ (𝐹𝑘) ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑢))
ptcmp.2 𝑋 = X𝑛𝐴 (𝐹𝑛)
ptcmp.3 (𝜑𝐴𝑉)
ptcmp.4 (𝜑𝐹:𝐴⟶Comp)
ptcmp.5 (𝜑𝑋 ∈ (UFL ∩ dom card))
ptcmplem2.5 (𝜑𝑈 ⊆ ran 𝑆)
ptcmplem2.6 (𝜑𝑋 = 𝑈)
ptcmplem2.7 (𝜑 → ¬ ∃𝑧 ∈ (𝒫 𝑈 ∩ Fin)𝑋 = 𝑧)
ptcmplem3.8 𝐾 = {𝑢 ∈ (𝐹𝑘) ∣ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑢) ∈ 𝑈}
Assertion
Ref Expression
ptcmplem3 (𝜑 → ∃𝑓(𝑓 Fn 𝐴 ∧ ∀𝑘𝐴 (𝑓𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾)))
Distinct variable groups:   𝑓,𝑘,𝑛,𝑢,𝑤,𝑧,𝐴   𝑓,𝐾,𝑢   𝑆,𝑘,𝑛,𝑢,𝑧   𝜑,𝑓,𝑘,𝑛,𝑢   𝑈,𝑘,𝑢,𝑧   𝑘,𝑉,𝑛,𝑢,𝑤,𝑧   𝑓,𝐹,𝑘,𝑛,𝑢,𝑤,𝑧   𝑓,𝑋,𝑘,𝑛,𝑢,𝑤,𝑧
Allowed substitution hints:   𝜑(𝑧,𝑤)   𝑆(𝑤,𝑓)   𝑈(𝑤,𝑓,𝑛)   𝐾(𝑧,𝑤,𝑘,𝑛)   𝑉(𝑓)

Proof of Theorem ptcmplem3
Dummy variables 𝑔 𝑚 𝑡 𝑥 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 ptcmp.3 . . . 4 (𝜑𝐴𝑉)
2 rabexg 5255 . . . 4 (𝐴𝑉 → {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} ∈ V)
31, 2syl 17 . . 3 (𝜑 → {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} ∈ V)
4 ptcmp.1 . . . . 5 𝑆 = (𝑘𝐴, 𝑢 ∈ (𝐹𝑘) ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑢))
5 ptcmp.2 . . . . 5 𝑋 = X𝑛𝐴 (𝐹𝑛)
6 ptcmp.4 . . . . 5 (𝜑𝐹:𝐴⟶Comp)
7 ptcmp.5 . . . . 5 (𝜑𝑋 ∈ (UFL ∩ dom card))
8 ptcmplem2.5 . . . . 5 (𝜑𝑈 ⊆ ran 𝑆)
9 ptcmplem2.6 . . . . 5 (𝜑𝑋 = 𝑈)
10 ptcmplem2.7 . . . . 5 (𝜑 → ¬ ∃𝑧 ∈ (𝒫 𝑈 ∩ Fin)𝑋 = 𝑧)
114, 5, 1, 6, 7, 8, 9, 10ptcmplem2 23204 . . . 4 (𝜑 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} (𝐹𝑘) ∈ dom card)
12 eldifi 4061 . . . . . . . 8 (𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾) → 𝑦 (𝐹𝑘))
13123ad2ant3 1134 . . . . . . 7 ((𝜑𝑦 ∈ V ∧ 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾)) → 𝑦 (𝐹𝑘))
1413rabssdv 4008 . . . . . 6 (𝜑 → {𝑦 ∈ V ∣ 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾)} ⊆ (𝐹𝑘))
1514ralrimivw 3104 . . . . 5 (𝜑 → ∀𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} {𝑦 ∈ V ∣ 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾)} ⊆ (𝐹𝑘))
16 ss2iun 4942 . . . . 5 (∀𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} {𝑦 ∈ V ∣ 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾)} ⊆ (𝐹𝑘) → 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} {𝑦 ∈ V ∣ 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾)} ⊆ 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} (𝐹𝑘))
1715, 16syl 17 . . . 4 (𝜑 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} {𝑦 ∈ V ∣ 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾)} ⊆ 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} (𝐹𝑘))
18 ssnum 9795 . . . 4 (( 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} (𝐹𝑘) ∈ dom card ∧ 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} {𝑦 ∈ V ∣ 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾)} ⊆ 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} (𝐹𝑘)) → 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} {𝑦 ∈ V ∣ 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾)} ∈ dom card)
1911, 17, 18syl2anc 584 . . 3 (𝜑 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} {𝑦 ∈ V ∣ 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾)} ∈ dom card)
20 elrabi 3618 . . . . 5 (𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} → 𝑘𝐴)
2110adantr 481 . . . . . . . 8 ((𝜑𝑘𝐴) → ¬ ∃𝑧 ∈ (𝒫 𝑈 ∩ Fin)𝑋 = 𝑧)
22 ssdif0 4297 . . . . . . . . 9 ( (𝐹𝑘) ⊆ 𝐾 ↔ ( (𝐹𝑘) ∖ 𝐾) = ∅)
236ffvelrnda 6961 . . . . . . . . . . . . 13 ((𝜑𝑘𝐴) → (𝐹𝑘) ∈ Comp)
2423adantr 481 . . . . . . . . . . . 12 (((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) → (𝐹𝑘) ∈ Comp)
25 ptcmplem3.8 . . . . . . . . . . . . . 14 𝐾 = {𝑢 ∈ (𝐹𝑘) ∣ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑢) ∈ 𝑈}
2625ssrab3 4015 . . . . . . . . . . . . 13 𝐾 ⊆ (𝐹𝑘)
2726a1i 11 . . . . . . . . . . . 12 (((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) → 𝐾 ⊆ (𝐹𝑘))
28 simpr 485 . . . . . . . . . . . . 13 (((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) → (𝐹𝑘) ⊆ 𝐾)
29 uniss 4847 . . . . . . . . . . . . . 14 (𝐾 ⊆ (𝐹𝑘) → 𝐾 (𝐹𝑘))
3026, 29mp1i 13 . . . . . . . . . . . . 13 (((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) → 𝐾 (𝐹𝑘))
3128, 30eqssd 3938 . . . . . . . . . . . 12 (((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) → (𝐹𝑘) = 𝐾)
32 eqid 2738 . . . . . . . . . . . . 13 (𝐹𝑘) = (𝐹𝑘)
3332cmpcov 22540 . . . . . . . . . . . 12 (((𝐹𝑘) ∈ Comp ∧ 𝐾 ⊆ (𝐹𝑘) ∧ (𝐹𝑘) = 𝐾) → ∃𝑡 ∈ (𝒫 𝐾 ∩ Fin) (𝐹𝑘) = 𝑡)
3424, 27, 31, 33syl3anc 1370 . . . . . . . . . . 11 (((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) → ∃𝑡 ∈ (𝒫 𝐾 ∩ Fin) (𝐹𝑘) = 𝑡)
35 elfpw 9121 . . . . . . . . . . . . . . . . . . 19 (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ↔ (𝑡𝐾𝑡 ∈ Fin))
3635simplbi 498 . . . . . . . . . . . . . . . . . 18 (𝑡 ∈ (𝒫 𝐾 ∩ Fin) → 𝑡𝐾)
3736ad2antrl 725 . . . . . . . . . . . . . . . . 17 ((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) → 𝑡𝐾)
3837sselda 3921 . . . . . . . . . . . . . . . 16 (((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) ∧ 𝑥𝑡) → 𝑥𝐾)
39 imaeq2 5965 . . . . . . . . . . . . . . . . . . 19 (𝑢 = 𝑥 → ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑢) = ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥))
4039eleq1d 2823 . . . . . . . . . . . . . . . . . 18 (𝑢 = 𝑥 → (((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑢) ∈ 𝑈 ↔ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥) ∈ 𝑈))
4140, 25elrab2 3627 . . . . . . . . . . . . . . . . 17 (𝑥𝐾 ↔ (𝑥 ∈ (𝐹𝑘) ∧ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥) ∈ 𝑈))
4241simprbi 497 . . . . . . . . . . . . . . . 16 (𝑥𝐾 → ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥) ∈ 𝑈)
4338, 42syl 17 . . . . . . . . . . . . . . 15 (((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) ∧ 𝑥𝑡) → ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥) ∈ 𝑈)
4443fmpttd 6989 . . . . . . . . . . . . . 14 ((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) → (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)):𝑡𝑈)
4544frnd 6608 . . . . . . . . . . . . 13 ((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) → ran (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)) ⊆ 𝑈)
4635simprbi 497 . . . . . . . . . . . . . . 15 (𝑡 ∈ (𝒫 𝐾 ∩ Fin) → 𝑡 ∈ Fin)
4746ad2antrl 725 . . . . . . . . . . . . . 14 ((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) → 𝑡 ∈ Fin)
48 eqid 2738 . . . . . . . . . . . . . . . 16 (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)) = (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥))
4948rnmpt 5864 . . . . . . . . . . . . . . 15 ran (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)) = {𝑓 ∣ ∃𝑥𝑡 𝑓 = ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)}
50 abrexfi 9119 . . . . . . . . . . . . . . 15 (𝑡 ∈ Fin → {𝑓 ∣ ∃𝑥𝑡 𝑓 = ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)} ∈ Fin)
5149, 50eqeltrid 2843 . . . . . . . . . . . . . 14 (𝑡 ∈ Fin → ran (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)) ∈ Fin)
5247, 51syl 17 . . . . . . . . . . . . 13 ((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) → ran (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)) ∈ Fin)
53 elfpw 9121 . . . . . . . . . . . . 13 (ran (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)) ∈ (𝒫 𝑈 ∩ Fin) ↔ (ran (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)) ⊆ 𝑈 ∧ ran (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)) ∈ Fin))
5445, 52, 53sylanbrc 583 . . . . . . . . . . . 12 ((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) → ran (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)) ∈ (𝒫 𝑈 ∩ Fin))
55 fveq2 6774 . . . . . . . . . . . . . . . . . . . . . 22 (𝑛 = 𝑘 → (𝑓𝑛) = (𝑓𝑘))
56 fveq2 6774 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑛 = 𝑘 → (𝐹𝑛) = (𝐹𝑘))
5756unieqd 4853 . . . . . . . . . . . . . . . . . . . . . 22 (𝑛 = 𝑘 (𝐹𝑛) = (𝐹𝑘))
5855, 57eleq12d 2833 . . . . . . . . . . . . . . . . . . . . 21 (𝑛 = 𝑘 → ((𝑓𝑛) ∈ (𝐹𝑛) ↔ (𝑓𝑘) ∈ (𝐹𝑘)))
59 simpr 485 . . . . . . . . . . . . . . . . . . . . . . 23 (((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) ∧ 𝑓𝑋) → 𝑓𝑋)
6059, 5eleqtrdi 2849 . . . . . . . . . . . . . . . . . . . . . 22 (((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) ∧ 𝑓𝑋) → 𝑓X𝑛𝐴 (𝐹𝑛))
61 vex 3436 . . . . . . . . . . . . . . . . . . . . . . . 24 𝑓 ∈ V
6261elixp 8692 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑓X𝑛𝐴 (𝐹𝑛) ↔ (𝑓 Fn 𝐴 ∧ ∀𝑛𝐴 (𝑓𝑛) ∈ (𝐹𝑛)))
6362simprbi 497 . . . . . . . . . . . . . . . . . . . . . 22 (𝑓X𝑛𝐴 (𝐹𝑛) → ∀𝑛𝐴 (𝑓𝑛) ∈ (𝐹𝑛))
6460, 63syl 17 . . . . . . . . . . . . . . . . . . . . 21 (((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) ∧ 𝑓𝑋) → ∀𝑛𝐴 (𝑓𝑛) ∈ (𝐹𝑛))
65 simp-4r 781 . . . . . . . . . . . . . . . . . . . . 21 (((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) ∧ 𝑓𝑋) → 𝑘𝐴)
6658, 64, 65rspcdva 3562 . . . . . . . . . . . . . . . . . . . 20 (((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) ∧ 𝑓𝑋) → (𝑓𝑘) ∈ (𝐹𝑘))
67 simplrr 775 . . . . . . . . . . . . . . . . . . . 20 (((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) ∧ 𝑓𝑋) → (𝐹𝑘) = 𝑡)
6866, 67eleqtrd 2841 . . . . . . . . . . . . . . . . . . 19 (((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) ∧ 𝑓𝑋) → (𝑓𝑘) ∈ 𝑡)
69 eluni2 4843 . . . . . . . . . . . . . . . . . . 19 ((𝑓𝑘) ∈ 𝑡 ↔ ∃𝑥𝑡 (𝑓𝑘) ∈ 𝑥)
7068, 69sylib 217 . . . . . . . . . . . . . . . . . 18 (((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) ∧ 𝑓𝑋) → ∃𝑥𝑡 (𝑓𝑘) ∈ 𝑥)
71 fveq1 6773 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑤 = 𝑓 → (𝑤𝑘) = (𝑓𝑘))
7271eleq1d 2823 . . . . . . . . . . . . . . . . . . . . . 22 (𝑤 = 𝑓 → ((𝑤𝑘) ∈ 𝑥 ↔ (𝑓𝑘) ∈ 𝑥))
73 eqid 2738 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑤𝑋 ↦ (𝑤𝑘)) = (𝑤𝑋 ↦ (𝑤𝑘))
7473mptpreima 6141 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥) = {𝑤𝑋 ∣ (𝑤𝑘) ∈ 𝑥}
7572, 74elrab2 3627 . . . . . . . . . . . . . . . . . . . . 21 (𝑓 ∈ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥) ↔ (𝑓𝑋 ∧ (𝑓𝑘) ∈ 𝑥))
7675baib 536 . . . . . . . . . . . . . . . . . . . 20 (𝑓𝑋 → (𝑓 ∈ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥) ↔ (𝑓𝑘) ∈ 𝑥))
7776ad2antlr 724 . . . . . . . . . . . . . . . . . . 19 ((((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) ∧ 𝑓𝑋) ∧ 𝑥𝑡) → (𝑓 ∈ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥) ↔ (𝑓𝑘) ∈ 𝑥))
7877rexbidva 3225 . . . . . . . . . . . . . . . . . 18 (((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) ∧ 𝑓𝑋) → (∃𝑥𝑡 𝑓 ∈ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥) ↔ ∃𝑥𝑡 (𝑓𝑘) ∈ 𝑥))
7970, 78mpbird 256 . . . . . . . . . . . . . . . . 17 (((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) ∧ 𝑓𝑋) → ∃𝑥𝑡 𝑓 ∈ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥))
80 eliun 4928 . . . . . . . . . . . . . . . . 17 (𝑓 𝑥𝑡 ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥) ↔ ∃𝑥𝑡 𝑓 ∈ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥))
8179, 80sylibr 233 . . . . . . . . . . . . . . . 16 (((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) ∧ 𝑓𝑋) → 𝑓 𝑥𝑡 ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥))
8281ex 413 . . . . . . . . . . . . . . 15 ((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) → (𝑓𝑋𝑓 𝑥𝑡 ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)))
8382ssrdv 3927 . . . . . . . . . . . . . 14 ((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) → 𝑋 𝑥𝑡 ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥))
8443ralrimiva 3103 . . . . . . . . . . . . . . . 16 ((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) → ∀𝑥𝑡 ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥) ∈ 𝑈)
85 dfiun2g 4960 . . . . . . . . . . . . . . . 16 (∀𝑥𝑡 ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥) ∈ 𝑈 𝑥𝑡 ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥) = {𝑓 ∣ ∃𝑥𝑡 𝑓 = ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)})
8684, 85syl 17 . . . . . . . . . . . . . . 15 ((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) → 𝑥𝑡 ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥) = {𝑓 ∣ ∃𝑥𝑡 𝑓 = ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)})
8749unieqi 4852 . . . . . . . . . . . . . . 15 ran (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)) = {𝑓 ∣ ∃𝑥𝑡 𝑓 = ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)}
8886, 87eqtr4di 2796 . . . . . . . . . . . . . 14 ((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) → 𝑥𝑡 ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥) = ran (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)))
8983, 88sseqtrd 3961 . . . . . . . . . . . . 13 ((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) → 𝑋 ran (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)))
9045unissd 4849 . . . . . . . . . . . . . 14 ((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) → ran (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)) ⊆ 𝑈)
919ad3antrrr 727 . . . . . . . . . . . . . 14 ((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) → 𝑋 = 𝑈)
9290, 91sseqtrrd 3962 . . . . . . . . . . . . 13 ((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) → ran (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)) ⊆ 𝑋)
9389, 92eqssd 3938 . . . . . . . . . . . 12 ((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) → 𝑋 = ran (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)))
94 unieq 4850 . . . . . . . . . . . . 13 (𝑧 = ran (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)) → 𝑧 = ran (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)))
9594rspceeqv 3575 . . . . . . . . . . . 12 ((ran (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥)) ∈ (𝒫 𝑈 ∩ Fin) ∧ 𝑋 = ran (𝑥𝑡 ↦ ((𝑤𝑋 ↦ (𝑤𝑘)) “ 𝑥))) → ∃𝑧 ∈ (𝒫 𝑈 ∩ Fin)𝑋 = 𝑧)
9654, 93, 95syl2anc 584 . . . . . . . . . . 11 ((((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) ∧ (𝑡 ∈ (𝒫 𝐾 ∩ Fin) ∧ (𝐹𝑘) = 𝑡)) → ∃𝑧 ∈ (𝒫 𝑈 ∩ Fin)𝑋 = 𝑧)
9734, 96rexlimddv 3220 . . . . . . . . . 10 (((𝜑𝑘𝐴) ∧ (𝐹𝑘) ⊆ 𝐾) → ∃𝑧 ∈ (𝒫 𝑈 ∩ Fin)𝑋 = 𝑧)
9897ex 413 . . . . . . . . 9 ((𝜑𝑘𝐴) → ( (𝐹𝑘) ⊆ 𝐾 → ∃𝑧 ∈ (𝒫 𝑈 ∩ Fin)𝑋 = 𝑧))
9922, 98syl5bir 242 . . . . . . . 8 ((𝜑𝑘𝐴) → (( (𝐹𝑘) ∖ 𝐾) = ∅ → ∃𝑧 ∈ (𝒫 𝑈 ∩ Fin)𝑋 = 𝑧))
10021, 99mtod 197 . . . . . . 7 ((𝜑𝑘𝐴) → ¬ ( (𝐹𝑘) ∖ 𝐾) = ∅)
101 neq0 4279 . . . . . . 7 (¬ ( (𝐹𝑘) ∖ 𝐾) = ∅ ↔ ∃𝑦 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾))
102100, 101sylib 217 . . . . . 6 ((𝜑𝑘𝐴) → ∃𝑦 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾))
103 rexv 3457 . . . . . 6 (∃𝑦 ∈ V 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾) ↔ ∃𝑦 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾))
104102, 103sylibr 233 . . . . 5 ((𝜑𝑘𝐴) → ∃𝑦 ∈ V 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾))
10520, 104sylan2 593 . . . 4 ((𝜑𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o}) → ∃𝑦 ∈ V 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾))
106105ralrimiva 3103 . . 3 (𝜑 → ∀𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o}∃𝑦 ∈ V 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾))
107 eleq1 2826 . . . 4 (𝑦 = (𝑔𝑘) → (𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾) ↔ (𝑔𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾)))
108107ac6num 10235 . . 3 (({𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} ∈ V ∧ 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} {𝑦 ∈ V ∣ 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾)} ∈ dom card ∧ ∀𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o}∃𝑦 ∈ V 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾)) → ∃𝑔(𝑔:{𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o}⟶V ∧ ∀𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} (𝑔𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾)))
1093, 19, 106, 108syl3anc 1370 . 2 (𝜑 → ∃𝑔(𝑔:{𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o}⟶V ∧ ∀𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} (𝑔𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾)))
1101adantr 481 . . . 4 ((𝜑 ∧ (𝑔:{𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o}⟶V ∧ ∀𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} (𝑔𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾))) → 𝐴𝑉)
111110mptexd 7100 . . 3 ((𝜑 ∧ (𝑔:{𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o}⟶V ∧ ∀𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} (𝑔𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾))) → (𝑚𝐴 ↦ if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚))) ∈ V)
112 fvex 6787 . . . . . . . 8 (𝐹𝑚) ∈ V
113112uniex 7594 . . . . . . 7 (𝐹𝑚) ∈ V
114113uniex 7594 . . . . . 6 (𝐹𝑚) ∈ V
115 fvex 6787 . . . . . 6 (𝑔𝑚) ∈ V
116114, 115ifex 4509 . . . . 5 if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚)) ∈ V
117116rgenw 3076 . . . 4 𝑚𝐴 if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚)) ∈ V
118 eqid 2738 . . . . 5 (𝑚𝐴 ↦ if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚))) = (𝑚𝐴 ↦ if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚)))
119118fnmpt 6573 . . . 4 (∀𝑚𝐴 if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚)) ∈ V → (𝑚𝐴 ↦ if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚))) Fn 𝐴)
120117, 119mp1i 13 . . 3 ((𝜑 ∧ (𝑔:{𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o}⟶V ∧ ∀𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} (𝑔𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾))) → (𝑚𝐴 ↦ if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚))) Fn 𝐴)
12157breq1d 5084 . . . . . . 7 (𝑛 = 𝑘 → ( (𝐹𝑛) ≈ 1o (𝐹𝑘) ≈ 1o))
122121notbid 318 . . . . . 6 (𝑛 = 𝑘 → (¬ (𝐹𝑛) ≈ 1o ↔ ¬ (𝐹𝑘) ≈ 1o))
123122ralrab 3630 . . . . 5 (∀𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} (𝑔𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾) ↔ ∀𝑘𝐴 (𝐹𝑘) ≈ 1o → (𝑔𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾)))
124 iftrue 4465 . . . . . . . . . . 11 ( (𝐹𝑘) ≈ 1o → if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)) = (𝐹𝑘))
125124ad2antll 726 . . . . . . . . . 10 (((𝜑𝑔:{𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o}⟶V) ∧ (𝑘𝐴 (𝐹𝑘) ≈ 1o)) → if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)) = (𝐹𝑘))
126102adantrr 714 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑘𝐴 (𝐹𝑘) ≈ 1o)) → ∃𝑦 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾))
12712adantl 482 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑘𝐴 (𝐹𝑘) ≈ 1o)) ∧ 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾)) → 𝑦 (𝐹𝑘))
128 simplrr 775 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑘𝐴 (𝐹𝑘) ≈ 1o)) ∧ 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾)) → (𝐹𝑘) ≈ 1o)
129 en1b 8813 . . . . . . . . . . . . . . . 16 ( (𝐹𝑘) ≈ 1o (𝐹𝑘) = { (𝐹𝑘)})
130128, 129sylib 217 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑘𝐴 (𝐹𝑘) ≈ 1o)) ∧ 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾)) → (𝐹𝑘) = { (𝐹𝑘)})
131127, 130eleqtrd 2841 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑘𝐴 (𝐹𝑘) ≈ 1o)) ∧ 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾)) → 𝑦 ∈ { (𝐹𝑘)})
132 elsni 4578 . . . . . . . . . . . . . 14 (𝑦 ∈ { (𝐹𝑘)} → 𝑦 = (𝐹𝑘))
133131, 132syl 17 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑘𝐴 (𝐹𝑘) ≈ 1o)) ∧ 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾)) → 𝑦 = (𝐹𝑘))
134 simpr 485 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑘𝐴 (𝐹𝑘) ≈ 1o)) ∧ 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾)) → 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾))
135133, 134eqeltrrd 2840 . . . . . . . . . . . 12 (((𝜑 ∧ (𝑘𝐴 (𝐹𝑘) ≈ 1o)) ∧ 𝑦 ∈ ( (𝐹𝑘) ∖ 𝐾)) → (𝐹𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾))
136126, 135exlimddv 1938 . . . . . . . . . . 11 ((𝜑 ∧ (𝑘𝐴 (𝐹𝑘) ≈ 1o)) → (𝐹𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾))
137136adantlr 712 . . . . . . . . . 10 (((𝜑𝑔:{𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o}⟶V) ∧ (𝑘𝐴 (𝐹𝑘) ≈ 1o)) → (𝐹𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾))
138125, 137eqeltrd 2839 . . . . . . . . 9 (((𝜑𝑔:{𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o}⟶V) ∧ (𝑘𝐴 (𝐹𝑘) ≈ 1o)) → if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)) ∈ ( (𝐹𝑘) ∖ 𝐾))
139138a1d 25 . . . . . . . 8 (((𝜑𝑔:{𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o}⟶V) ∧ (𝑘𝐴 (𝐹𝑘) ≈ 1o)) → ((¬ (𝐹𝑘) ≈ 1o → (𝑔𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾)) → if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)) ∈ ( (𝐹𝑘) ∖ 𝐾)))
140139expr 457 . . . . . . 7 (((𝜑𝑔:{𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o}⟶V) ∧ 𝑘𝐴) → ( (𝐹𝑘) ≈ 1o → ((¬ (𝐹𝑘) ≈ 1o → (𝑔𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾)) → if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)) ∈ ( (𝐹𝑘) ∖ 𝐾))))
141 pm2.27 42 . . . . . . . 8 (𝐹𝑘) ≈ 1o → ((¬ (𝐹𝑘) ≈ 1o → (𝑔𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾)) → (𝑔𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾)))
142 iffalse 4468 . . . . . . . . 9 (𝐹𝑘) ≈ 1o → if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)) = (𝑔𝑘))
143142eleq1d 2823 . . . . . . . 8 (𝐹𝑘) ≈ 1o → (if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)) ∈ ( (𝐹𝑘) ∖ 𝐾) ↔ (𝑔𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾)))
144141, 143sylibrd 258 . . . . . . 7 (𝐹𝑘) ≈ 1o → ((¬ (𝐹𝑘) ≈ 1o → (𝑔𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾)) → if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)) ∈ ( (𝐹𝑘) ∖ 𝐾)))
145140, 144pm2.61d1 180 . . . . . 6 (((𝜑𝑔:{𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o}⟶V) ∧ 𝑘𝐴) → ((¬ (𝐹𝑘) ≈ 1o → (𝑔𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾)) → if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)) ∈ ( (𝐹𝑘) ∖ 𝐾)))
146145ralimdva 3108 . . . . 5 ((𝜑𝑔:{𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o}⟶V) → (∀𝑘𝐴 (𝐹𝑘) ≈ 1o → (𝑔𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾)) → ∀𝑘𝐴 if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)) ∈ ( (𝐹𝑘) ∖ 𝐾)))
147123, 146syl5bi 241 . . . 4 ((𝜑𝑔:{𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o}⟶V) → (∀𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} (𝑔𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾) → ∀𝑘𝐴 if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)) ∈ ( (𝐹𝑘) ∖ 𝐾)))
148147impr 455 . . 3 ((𝜑 ∧ (𝑔:{𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o}⟶V ∧ ∀𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} (𝑔𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾))) → ∀𝑘𝐴 if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)) ∈ ( (𝐹𝑘) ∖ 𝐾))
149 fneq1 6524 . . . . . 6 (𝑓 = (𝑚𝐴 ↦ if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚))) → (𝑓 Fn 𝐴 ↔ (𝑚𝐴 ↦ if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚))) Fn 𝐴))
150 fveq1 6773 . . . . . . . . 9 (𝑓 = (𝑚𝐴 ↦ if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚))) → (𝑓𝑘) = ((𝑚𝐴 ↦ if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚)))‘𝑘))
151 fveq2 6774 . . . . . . . . . . . . 13 (𝑚 = 𝑘 → (𝐹𝑚) = (𝐹𝑘))
152151unieqd 4853 . . . . . . . . . . . 12 (𝑚 = 𝑘 (𝐹𝑚) = (𝐹𝑘))
153152breq1d 5084 . . . . . . . . . . 11 (𝑚 = 𝑘 → ( (𝐹𝑚) ≈ 1o (𝐹𝑘) ≈ 1o))
154152unieqd 4853 . . . . . . . . . . 11 (𝑚 = 𝑘 (𝐹𝑚) = (𝐹𝑘))
155 fveq2 6774 . . . . . . . . . . 11 (𝑚 = 𝑘 → (𝑔𝑚) = (𝑔𝑘))
156153, 154, 155ifbieq12d 4487 . . . . . . . . . 10 (𝑚 = 𝑘 → if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚)) = if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)))
157 fvex 6787 . . . . . . . . . . . . 13 (𝐹𝑘) ∈ V
158157uniex 7594 . . . . . . . . . . . 12 (𝐹𝑘) ∈ V
159158uniex 7594 . . . . . . . . . . 11 (𝐹𝑘) ∈ V
160 fvex 6787 . . . . . . . . . . 11 (𝑔𝑘) ∈ V
161159, 160ifex 4509 . . . . . . . . . 10 if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)) ∈ V
162156, 118, 161fvmpt 6875 . . . . . . . . 9 (𝑘𝐴 → ((𝑚𝐴 ↦ if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚)))‘𝑘) = if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)))
163150, 162sylan9eq 2798 . . . . . . . 8 ((𝑓 = (𝑚𝐴 ↦ if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚))) ∧ 𝑘𝐴) → (𝑓𝑘) = if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)))
164163eleq1d 2823 . . . . . . 7 ((𝑓 = (𝑚𝐴 ↦ if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚))) ∧ 𝑘𝐴) → ((𝑓𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾) ↔ if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)) ∈ ( (𝐹𝑘) ∖ 𝐾)))
165164ralbidva 3111 . . . . . 6 (𝑓 = (𝑚𝐴 ↦ if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚))) → (∀𝑘𝐴 (𝑓𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾) ↔ ∀𝑘𝐴 if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)) ∈ ( (𝐹𝑘) ∖ 𝐾)))
166149, 165anbi12d 631 . . . . 5 (𝑓 = (𝑚𝐴 ↦ if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚))) → ((𝑓 Fn 𝐴 ∧ ∀𝑘𝐴 (𝑓𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾)) ↔ ((𝑚𝐴 ↦ if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚))) Fn 𝐴 ∧ ∀𝑘𝐴 if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)) ∈ ( (𝐹𝑘) ∖ 𝐾))))
167166spcegv 3536 . . . 4 ((𝑚𝐴 ↦ if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚))) ∈ V → (((𝑚𝐴 ↦ if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚))) Fn 𝐴 ∧ ∀𝑘𝐴 if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)) ∈ ( (𝐹𝑘) ∖ 𝐾)) → ∃𝑓(𝑓 Fn 𝐴 ∧ ∀𝑘𝐴 (𝑓𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾))))
1681673impib 1115 . . 3 (((𝑚𝐴 ↦ if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚))) ∈ V ∧ (𝑚𝐴 ↦ if( (𝐹𝑚) ≈ 1o, (𝐹𝑚), (𝑔𝑚))) Fn 𝐴 ∧ ∀𝑘𝐴 if( (𝐹𝑘) ≈ 1o, (𝐹𝑘), (𝑔𝑘)) ∈ ( (𝐹𝑘) ∖ 𝐾)) → ∃𝑓(𝑓 Fn 𝐴 ∧ ∀𝑘𝐴 (𝑓𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾)))
169111, 120, 148, 168syl3anc 1370 . 2 ((𝜑 ∧ (𝑔:{𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o}⟶V ∧ ∀𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1o} (𝑔𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾))) → ∃𝑓(𝑓 Fn 𝐴 ∧ ∀𝑘𝐴 (𝑓𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾)))
170109, 169exlimddv 1938 1 (𝜑 → ∃𝑓(𝑓 Fn 𝐴 ∧ ∀𝑘𝐴 (𝑓𝑘) ∈ ( (𝐹𝑘) ∖ 𝐾)))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 205  wa 396   = wceq 1539  wex 1782  wcel 2106  {cab 2715  wral 3064  wrex 3065  {crab 3068  Vcvv 3432  cdif 3884  cin 3886  wss 3887  c0 4256  ifcif 4459  𝒫 cpw 4533  {csn 4561   cuni 4839   ciun 4924   class class class wbr 5074  cmpt 5157  ccnv 5588  dom cdm 5589  ran crn 5590  cima 5592   Fn wfn 6428  wf 6429  cfv 6433  cmpo 7277  1oc1o 8290  Xcixp 8685  cen 8730  Fincfn 8733  cardccrd 9693  Compccmp 22537  UFLcufl 23051
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  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 2709  ax-rep 5209  ax-sep 5223  ax-nul 5230  ax-pow 5288  ax-pr 5352  ax-un 7588
This theorem depends on definitions:  df-bi 206  df-an 397  df-or 845  df-3or 1087  df-3an 1088  df-tru 1542  df-fal 1552  df-ex 1783  df-nf 1787  df-sb 2068  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2816  df-nfc 2889  df-ne 2944  df-ral 3069  df-rex 3070  df-rmo 3071  df-reu 3072  df-rab 3073  df-v 3434  df-sbc 3717  df-csb 3833  df-dif 3890  df-un 3892  df-in 3894  df-ss 3904  df-pss 3906  df-nul 4257  df-if 4460  df-pw 4535  df-sn 4562  df-pr 4564  df-op 4568  df-uni 4840  df-int 4880  df-iun 4926  df-br 5075  df-opab 5137  df-mpt 5158  df-tr 5192  df-id 5489  df-eprel 5495  df-po 5503  df-so 5504  df-fr 5544  df-se 5545  df-we 5546  df-xp 5595  df-rel 5596  df-cnv 5597  df-co 5598  df-dm 5599  df-rn 5600  df-res 5601  df-ima 5602  df-pred 6202  df-ord 6269  df-on 6270  df-lim 6271  df-suc 6272  df-iota 6391  df-fun 6435  df-fn 6436  df-f 6437  df-f1 6438  df-fo 6439  df-f1o 6440  df-fv 6441  df-isom 6442  df-riota 7232  df-ov 7278  df-oprab 7279  df-mpo 7280  df-om 7713  df-1st 7831  df-2nd 7832  df-frecs 8097  df-wrecs 8128  df-recs 8202  df-rdg 8241  df-1o 8297  df-oadd 8301  df-omul 8302  df-er 8498  df-map 8617  df-ixp 8686  df-en 8734  df-dom 8735  df-fin 8737  df-wdom 9324  df-card 9697  df-acn 9700  df-cmp 22538
This theorem is referenced by:  ptcmplem4  23206
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