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Theorem ptcmplem2 21904
 Description: Lemma for ptcmp 21909. (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)
Assertion
Ref Expression
ptcmplem2 (𝜑 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) ∈ dom card)
Distinct variable groups:   𝑘,𝑛,𝑢,𝑤,𝑧,𝐴   𝑆,𝑘,𝑛,𝑢,𝑧   𝜑,𝑘,𝑛,𝑢   𝑈,𝑘,𝑢,𝑧   𝑘,𝑉,𝑛,𝑢,𝑤,𝑧   𝑘,𝐹,𝑛,𝑢,𝑤,𝑧   𝑘,𝑋,𝑛,𝑢,𝑤,𝑧
Allowed substitution hints:   𝜑(𝑧,𝑤)   𝑆(𝑤)   𝑈(𝑤,𝑛)

Proof of Theorem ptcmplem2
Dummy variables 𝑓 𝑔 𝑚 𝑥 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 ptcmplem2.7 . . . 4 (𝜑 → ¬ ∃𝑧 ∈ (𝒫 𝑈 ∩ Fin)𝑋 = 𝑧)
2 0ss 4005 . . . . . . 7 ∅ ⊆ 𝑈
3 0fin 8229 . . . . . . 7 ∅ ∈ Fin
4 elfpw 8309 . . . . . . 7 (∅ ∈ (𝒫 𝑈 ∩ Fin) ↔ (∅ ⊆ 𝑈 ∧ ∅ ∈ Fin))
52, 3, 4mpbir2an 975 . . . . . 6 ∅ ∈ (𝒫 𝑈 ∩ Fin)
6 unieq 4476 . . . . . . . . 9 (𝑧 = ∅ → 𝑧 = ∅)
7 uni0 4497 . . . . . . . . 9 ∅ = ∅
86, 7syl6eq 2701 . . . . . . . 8 (𝑧 = ∅ → 𝑧 = ∅)
98eqeq2d 2661 . . . . . . 7 (𝑧 = ∅ → (𝑋 = 𝑧𝑋 = ∅))
109rspcev 3340 . . . . . 6 ((∅ ∈ (𝒫 𝑈 ∩ Fin) ∧ 𝑋 = ∅) → ∃𝑧 ∈ (𝒫 𝑈 ∩ Fin)𝑋 = 𝑧)
115, 10mpan 706 . . . . 5 (𝑋 = ∅ → ∃𝑧 ∈ (𝒫 𝑈 ∩ Fin)𝑋 = 𝑧)
1211necon3bi 2849 . . . 4 (¬ ∃𝑧 ∈ (𝒫 𝑈 ∩ Fin)𝑋 = 𝑧𝑋 ≠ ∅)
131, 12syl 17 . . 3 (𝜑𝑋 ≠ ∅)
14 n0 3964 . . 3 (𝑋 ≠ ∅ ↔ ∃𝑓 𝑓𝑋)
1513, 14sylib 208 . 2 (𝜑 → ∃𝑓 𝑓𝑋)
16 ptcmp.2 . . . . . . 7 𝑋 = X𝑛𝐴 (𝐹𝑛)
17 fveq2 6229 . . . . . . . . 9 (𝑛 = 𝑘 → (𝐹𝑛) = (𝐹𝑘))
1817unieqd 4478 . . . . . . . 8 (𝑛 = 𝑘 (𝐹𝑛) = (𝐹𝑘))
1918cbvixpv 7968 . . . . . . 7 X𝑛𝐴 (𝐹𝑛) = X𝑘𝐴 (𝐹𝑘)
2016, 19eqtri 2673 . . . . . 6 𝑋 = X𝑘𝐴 (𝐹𝑘)
21 inss2 3867 . . . . . . . 8 (UFL ∩ dom card) ⊆ dom card
22 ptcmp.5 . . . . . . . 8 (𝜑𝑋 ∈ (UFL ∩ dom card))
2321, 22sseldi 3634 . . . . . . 7 (𝜑𝑋 ∈ dom card)
2423adantr 480 . . . . . 6 ((𝜑𝑓𝑋) → 𝑋 ∈ dom card)
2520, 24syl5eqelr 2735 . . . . 5 ((𝜑𝑓𝑋) → X𝑘𝐴 (𝐹𝑘) ∈ dom card)
26 ssrab2 3720 . . . . . 6 {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} ⊆ 𝐴
2713adantr 480 . . . . . . 7 ((𝜑𝑓𝑋) → 𝑋 ≠ ∅)
2820, 27syl5eqner 2898 . . . . . 6 ((𝜑𝑓𝑋) → X𝑘𝐴 (𝐹𝑘) ≠ ∅)
29 eqid 2651 . . . . . . 7 (𝑔X𝑘𝐴 (𝐹𝑘) ↦ (𝑔 ↾ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜})) = (𝑔X𝑘𝐴 (𝐹𝑘) ↦ (𝑔 ↾ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜}))
3029resixpfo 7988 . . . . . 6 (({𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} ⊆ 𝐴X𝑘𝐴 (𝐹𝑘) ≠ ∅) → (𝑔X𝑘𝐴 (𝐹𝑘) ↦ (𝑔 ↾ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜})):X𝑘𝐴 (𝐹𝑘)–ontoX𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘))
3126, 28, 30sylancr 696 . . . . 5 ((𝜑𝑓𝑋) → (𝑔X𝑘𝐴 (𝐹𝑘) ↦ (𝑔 ↾ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜})):X𝑘𝐴 (𝐹𝑘)–ontoX𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘))
32 fonum 8919 . . . . 5 ((X𝑘𝐴 (𝐹𝑘) ∈ dom card ∧ (𝑔X𝑘𝐴 (𝐹𝑘) ↦ (𝑔 ↾ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜})):X𝑘𝐴 (𝐹𝑘)–ontoX𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘)) → X𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) ∈ dom card)
3325, 31, 32syl2anc 694 . . . 4 ((𝜑𝑓𝑋) → X𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) ∈ dom card)
34 vex 3234 . . . . . . . . . . 11 𝑔 ∈ V
35 difexg 4841 . . . . . . . . . . 11 (𝑔 ∈ V → (𝑔𝑓) ∈ V)
3634, 35mp1i 13 . . . . . . . . . 10 ((𝜑𝑓𝑋) → (𝑔𝑓) ∈ V)
37 dmexg 7139 . . . . . . . . . 10 ((𝑔𝑓) ∈ V → dom (𝑔𝑓) ∈ V)
38 uniexg 6997 . . . . . . . . . 10 (dom (𝑔𝑓) ∈ V → dom (𝑔𝑓) ∈ V)
3936, 37, 383syl 18 . . . . . . . . 9 ((𝜑𝑓𝑋) → dom (𝑔𝑓) ∈ V)
4039ralrimivw 2996 . . . . . . . 8 ((𝜑𝑓𝑋) → ∀𝑔𝑋 dom (𝑔𝑓) ∈ V)
41 eqid 2651 . . . . . . . . 9 (𝑔𝑋 dom (𝑔𝑓)) = (𝑔𝑋 dom (𝑔𝑓))
4241fnmpt 6058 . . . . . . . 8 (∀𝑔𝑋 dom (𝑔𝑓) ∈ V → (𝑔𝑋 dom (𝑔𝑓)) Fn 𝑋)
4340, 42syl 17 . . . . . . 7 ((𝜑𝑓𝑋) → (𝑔𝑋 dom (𝑔𝑓)) Fn 𝑋)
44 dffn4 6159 . . . . . . 7 ((𝑔𝑋 dom (𝑔𝑓)) Fn 𝑋 ↔ (𝑔𝑋 dom (𝑔𝑓)):𝑋onto→ran (𝑔𝑋 dom (𝑔𝑓)))
4543, 44sylib 208 . . . . . 6 ((𝜑𝑓𝑋) → (𝑔𝑋 dom (𝑔𝑓)):𝑋onto→ran (𝑔𝑋 dom (𝑔𝑓)))
46 fonum 8919 . . . . . 6 ((𝑋 ∈ dom card ∧ (𝑔𝑋 dom (𝑔𝑓)):𝑋onto→ran (𝑔𝑋 dom (𝑔𝑓))) → ran (𝑔𝑋 dom (𝑔𝑓)) ∈ dom card)
4724, 45, 46syl2anc 694 . . . . 5 ((𝜑𝑓𝑋) → ran (𝑔𝑋 dom (𝑔𝑓)) ∈ dom card)
48 ssdif0 3975 . . . . . . . . . . . 12 ( (𝐹𝑘) ⊆ {(𝑓𝑘)} ↔ ( (𝐹𝑘) ∖ {(𝑓𝑘)}) = ∅)
49 simpr 476 . . . . . . . . . . . . . . 15 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ (𝐹𝑘) ⊆ {(𝑓𝑘)}) → (𝐹𝑘) ⊆ {(𝑓𝑘)})
50 simpr 476 . . . . . . . . . . . . . . . . . . . 20 ((𝜑𝑓𝑋) → 𝑓𝑋)
5150, 20syl6eleq 2740 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑓𝑋) → 𝑓X𝑘𝐴 (𝐹𝑘))
52 vex 3234 . . . . . . . . . . . . . . . . . . . . 21 𝑓 ∈ V
5352elixp 7957 . . . . . . . . . . . . . . . . . . . 20 (𝑓X𝑘𝐴 (𝐹𝑘) ↔ (𝑓 Fn 𝐴 ∧ ∀𝑘𝐴 (𝑓𝑘) ∈ (𝐹𝑘)))
5453simprbi 479 . . . . . . . . . . . . . . . . . . 19 (𝑓X𝑘𝐴 (𝐹𝑘) → ∀𝑘𝐴 (𝑓𝑘) ∈ (𝐹𝑘))
5551, 54syl 17 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑓𝑋) → ∀𝑘𝐴 (𝑓𝑘) ∈ (𝐹𝑘))
5655r19.21bi 2961 . . . . . . . . . . . . . . . . 17 (((𝜑𝑓𝑋) ∧ 𝑘𝐴) → (𝑓𝑘) ∈ (𝐹𝑘))
5756snssd 4372 . . . . . . . . . . . . . . . 16 (((𝜑𝑓𝑋) ∧ 𝑘𝐴) → {(𝑓𝑘)} ⊆ (𝐹𝑘))
5857adantr 480 . . . . . . . . . . . . . . 15 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ (𝐹𝑘) ⊆ {(𝑓𝑘)}) → {(𝑓𝑘)} ⊆ (𝐹𝑘))
5949, 58eqssd 3653 . . . . . . . . . . . . . 14 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ (𝐹𝑘) ⊆ {(𝑓𝑘)}) → (𝐹𝑘) = {(𝑓𝑘)})
60 fvex 6239 . . . . . . . . . . . . . . 15 (𝑓𝑘) ∈ V
6160ensn1 8061 . . . . . . . . . . . . . 14 {(𝑓𝑘)} ≈ 1𝑜
6259, 61syl6eqbr 4724 . . . . . . . . . . . . 13 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ (𝐹𝑘) ⊆ {(𝑓𝑘)}) → (𝐹𝑘) ≈ 1𝑜)
6362ex 449 . . . . . . . . . . . 12 (((𝜑𝑓𝑋) ∧ 𝑘𝐴) → ( (𝐹𝑘) ⊆ {(𝑓𝑘)} → (𝐹𝑘) ≈ 1𝑜))
6448, 63syl5bir 233 . . . . . . . . . . 11 (((𝜑𝑓𝑋) ∧ 𝑘𝐴) → (( (𝐹𝑘) ∖ {(𝑓𝑘)}) = ∅ → (𝐹𝑘) ≈ 1𝑜))
6564con3d 148 . . . . . . . . . 10 (((𝜑𝑓𝑋) ∧ 𝑘𝐴) → (¬ (𝐹𝑘) ≈ 1𝑜 → ¬ ( (𝐹𝑘) ∖ {(𝑓𝑘)}) = ∅))
66 neq0 3963 . . . . . . . . . 10 (¬ ( (𝐹𝑘) ∖ {(𝑓𝑘)}) = ∅ ↔ ∃𝑥 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)}))
6765, 66syl6ib 241 . . . . . . . . 9 (((𝜑𝑓𝑋) ∧ 𝑘𝐴) → (¬ (𝐹𝑘) ≈ 1𝑜 → ∃𝑥 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})))
68 eldifi 3765 . . . . . . . . . . . . 13 (𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)}) → 𝑥 (𝐹𝑘))
69 simplr 807 . . . . . . . . . . . . . . . . . 18 (((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 (𝐹𝑘)) ∧ 𝑛𝐴) → 𝑥 (𝐹𝑘))
70 iftrue 4125 . . . . . . . . . . . . . . . . . . 19 (𝑛 = 𝑘 → if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)) = 𝑥)
7170, 18eleq12d 2724 . . . . . . . . . . . . . . . . . 18 (𝑛 = 𝑘 → (if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)) ∈ (𝐹𝑛) ↔ 𝑥 (𝐹𝑘)))
7269, 71syl5ibrcom 237 . . . . . . . . . . . . . . . . 17 (((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 (𝐹𝑘)) ∧ 𝑛𝐴) → (𝑛 = 𝑘 → if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)) ∈ (𝐹𝑛)))
7350, 16syl6eleq 2740 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑𝑓𝑋) → 𝑓X𝑛𝐴 (𝐹𝑛))
7452elixp 7957 . . . . . . . . . . . . . . . . . . . . . 22 (𝑓X𝑛𝐴 (𝐹𝑛) ↔ (𝑓 Fn 𝐴 ∧ ∀𝑛𝐴 (𝑓𝑛) ∈ (𝐹𝑛)))
7574simprbi 479 . . . . . . . . . . . . . . . . . . . . 21 (𝑓X𝑛𝐴 (𝐹𝑛) → ∀𝑛𝐴 (𝑓𝑛) ∈ (𝐹𝑛))
7673, 75syl 17 . . . . . . . . . . . . . . . . . . . 20 ((𝜑𝑓𝑋) → ∀𝑛𝐴 (𝑓𝑛) ∈ (𝐹𝑛))
7776ad2antrr 762 . . . . . . . . . . . . . . . . . . 19 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 (𝐹𝑘)) → ∀𝑛𝐴 (𝑓𝑛) ∈ (𝐹𝑛))
7877r19.21bi 2961 . . . . . . . . . . . . . . . . . 18 (((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 (𝐹𝑘)) ∧ 𝑛𝐴) → (𝑓𝑛) ∈ (𝐹𝑛))
79 iffalse 4128 . . . . . . . . . . . . . . . . . . 19 𝑛 = 𝑘 → if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)) = (𝑓𝑛))
8079eleq1d 2715 . . . . . . . . . . . . . . . . . 18 𝑛 = 𝑘 → (if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)) ∈ (𝐹𝑛) ↔ (𝑓𝑛) ∈ (𝐹𝑛)))
8178, 80syl5ibrcom 237 . . . . . . . . . . . . . . . . 17 (((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 (𝐹𝑘)) ∧ 𝑛𝐴) → (¬ 𝑛 = 𝑘 → if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)) ∈ (𝐹𝑛)))
8272, 81pm2.61d 170 . . . . . . . . . . . . . . . 16 (((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 (𝐹𝑘)) ∧ 𝑛𝐴) → if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)) ∈ (𝐹𝑛))
8382ralrimiva 2995 . . . . . . . . . . . . . . 15 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 (𝐹𝑘)) → ∀𝑛𝐴 if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)) ∈ (𝐹𝑛))
84 ptcmp.3 . . . . . . . . . . . . . . . . 17 (𝜑𝐴𝑉)
8584ad3antrrr 766 . . . . . . . . . . . . . . . 16 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 (𝐹𝑘)) → 𝐴𝑉)
86 mptelixpg 7987 . . . . . . . . . . . . . . . 16 (𝐴𝑉 → ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) ∈ X𝑛𝐴 (𝐹𝑛) ↔ ∀𝑛𝐴 if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)) ∈ (𝐹𝑛)))
8785, 86syl 17 . . . . . . . . . . . . . . 15 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 (𝐹𝑘)) → ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) ∈ X𝑛𝐴 (𝐹𝑛) ↔ ∀𝑛𝐴 if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)) ∈ (𝐹𝑛)))
8883, 87mpbird 247 . . . . . . . . . . . . . 14 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 (𝐹𝑘)) → (𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) ∈ X𝑛𝐴 (𝐹𝑛))
8988, 16syl6eleqr 2741 . . . . . . . . . . . . 13 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 (𝐹𝑘)) → (𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) ∈ 𝑋)
9068, 89sylan2 490 . . . . . . . . . . . 12 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})) → (𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) ∈ 𝑋)
91 vex 3234 . . . . . . . . . . . . . 14 𝑘 ∈ V
9291unisn 4483 . . . . . . . . . . . . 13 {𝑘} = 𝑘
93 simplr 807 . . . . . . . . . . . . . . . . . . . 20 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})) → 𝑘𝐴)
94 eleq1 2718 . . . . . . . . . . . . . . . . . . . 20 (𝑚 = 𝑘 → (𝑚𝐴𝑘𝐴))
9593, 94syl5ibrcom 237 . . . . . . . . . . . . . . . . . . 19 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})) → (𝑚 = 𝑘𝑚𝐴))
9695pm4.71rd 668 . . . . . . . . . . . . . . . . . 18 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})) → (𝑚 = 𝑘 ↔ (𝑚𝐴𝑚 = 𝑘)))
97 equequ1 1998 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝑛 = 𝑚 → (𝑛 = 𝑘𝑚 = 𝑘))
98 fveq2 6229 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝑛 = 𝑚 → (𝑓𝑛) = (𝑓𝑚))
9997, 98ifbieq2d 4144 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑛 = 𝑚 → if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)) = if(𝑚 = 𝑘, 𝑥, (𝑓𝑚)))
100 eqid 2651 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) = (𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)))
101 vex 3234 . . . . . . . . . . . . . . . . . . . . . . . 24 𝑥 ∈ V
102 fvex 6239 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝑓𝑚) ∈ V
103101, 102ifex 4189 . . . . . . . . . . . . . . . . . . . . . . 23 if(𝑚 = 𝑘, 𝑥, (𝑓𝑚)) ∈ V
10499, 100, 103fvmpt 6321 . . . . . . . . . . . . . . . . . . . . . 22 (𝑚𝐴 → ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)))‘𝑚) = if(𝑚 = 𝑘, 𝑥, (𝑓𝑚)))
105104neeq1d 2882 . . . . . . . . . . . . . . . . . . . . 21 (𝑚𝐴 → (((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)))‘𝑚) ≠ (𝑓𝑚) ↔ if(𝑚 = 𝑘, 𝑥, (𝑓𝑚)) ≠ (𝑓𝑚)))
106105adantl 481 . . . . . . . . . . . . . . . . . . . 20 (((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})) ∧ 𝑚𝐴) → (((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)))‘𝑚) ≠ (𝑓𝑚) ↔ if(𝑚 = 𝑘, 𝑥, (𝑓𝑚)) ≠ (𝑓𝑚)))
107 iffalse 4128 . . . . . . . . . . . . . . . . . . . . . 22 𝑚 = 𝑘 → if(𝑚 = 𝑘, 𝑥, (𝑓𝑚)) = (𝑓𝑚))
108107necon1ai 2850 . . . . . . . . . . . . . . . . . . . . 21 (if(𝑚 = 𝑘, 𝑥, (𝑓𝑚)) ≠ (𝑓𝑚) → 𝑚 = 𝑘)
109 eldifsni 4353 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)}) → 𝑥 ≠ (𝑓𝑘))
110109ad2antlr 763 . . . . . . . . . . . . . . . . . . . . . 22 (((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})) ∧ 𝑚𝐴) → 𝑥 ≠ (𝑓𝑘))
111 iftrue 4125 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑚 = 𝑘 → if(𝑚 = 𝑘, 𝑥, (𝑓𝑚)) = 𝑥)
112 fveq2 6229 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑚 = 𝑘 → (𝑓𝑚) = (𝑓𝑘))
113111, 112neeq12d 2884 . . . . . . . . . . . . . . . . . . . . . 22 (𝑚 = 𝑘 → (if(𝑚 = 𝑘, 𝑥, (𝑓𝑚)) ≠ (𝑓𝑚) ↔ 𝑥 ≠ (𝑓𝑘)))
114110, 113syl5ibrcom 237 . . . . . . . . . . . . . . . . . . . . 21 (((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})) ∧ 𝑚𝐴) → (𝑚 = 𝑘 → if(𝑚 = 𝑘, 𝑥, (𝑓𝑚)) ≠ (𝑓𝑚)))
115108, 114impbid2 216 . . . . . . . . . . . . . . . . . . . 20 (((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})) ∧ 𝑚𝐴) → (if(𝑚 = 𝑘, 𝑥, (𝑓𝑚)) ≠ (𝑓𝑚) ↔ 𝑚 = 𝑘))
116106, 115bitrd 268 . . . . . . . . . . . . . . . . . . 19 (((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})) ∧ 𝑚𝐴) → (((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)))‘𝑚) ≠ (𝑓𝑚) ↔ 𝑚 = 𝑘))
117116pm5.32da 674 . . . . . . . . . . . . . . . . . 18 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})) → ((𝑚𝐴 ∧ ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)))‘𝑚) ≠ (𝑓𝑚)) ↔ (𝑚𝐴𝑚 = 𝑘)))
11896, 117bitr4d 271 . . . . . . . . . . . . . . . . 17 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})) → (𝑚 = 𝑘 ↔ (𝑚𝐴 ∧ ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)))‘𝑚) ≠ (𝑓𝑚))))
119118abbidv 2770 . . . . . . . . . . . . . . . 16 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})) → {𝑚𝑚 = 𝑘} = {𝑚 ∣ (𝑚𝐴 ∧ ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)))‘𝑚) ≠ (𝑓𝑚))})
120 df-sn 4211 . . . . . . . . . . . . . . . 16 {𝑘} = {𝑚𝑚 = 𝑘}
121 df-rab 2950 . . . . . . . . . . . . . . . 16 {𝑚𝐴 ∣ ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)))‘𝑚) ≠ (𝑓𝑚)} = {𝑚 ∣ (𝑚𝐴 ∧ ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)))‘𝑚) ≠ (𝑓𝑚))}
122119, 120, 1213eqtr4g 2710 . . . . . . . . . . . . . . 15 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})) → {𝑘} = {𝑚𝐴 ∣ ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)))‘𝑚) ≠ (𝑓𝑚)})
123 fvex 6239 . . . . . . . . . . . . . . . . . . 19 (𝑓𝑛) ∈ V
124101, 123ifex 4189 . . . . . . . . . . . . . . . . . 18 if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)) ∈ V
125124rgenw 2953 . . . . . . . . . . . . . . . . 17 𝑛𝐴 if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)) ∈ V
126100fnmpt 6058 . . . . . . . . . . . . . . . . 17 (∀𝑛𝐴 if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)) ∈ V → (𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) Fn 𝐴)
127125, 126mp1i 13 . . . . . . . . . . . . . . . 16 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})) → (𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) Fn 𝐴)
128 ixpfn 7956 . . . . . . . . . . . . . . . . . 18 (𝑓X𝑛𝐴 (𝐹𝑛) → 𝑓 Fn 𝐴)
12973, 128syl 17 . . . . . . . . . . . . . . . . 17 ((𝜑𝑓𝑋) → 𝑓 Fn 𝐴)
130129ad2antrr 762 . . . . . . . . . . . . . . . 16 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})) → 𝑓 Fn 𝐴)
131 fndmdif 6361 . . . . . . . . . . . . . . . 16 (((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) Fn 𝐴𝑓 Fn 𝐴) → dom ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) ∖ 𝑓) = {𝑚𝐴 ∣ ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)))‘𝑚) ≠ (𝑓𝑚)})
132127, 130, 131syl2anc 694 . . . . . . . . . . . . . . 15 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})) → dom ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) ∖ 𝑓) = {𝑚𝐴 ∣ ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛)))‘𝑚) ≠ (𝑓𝑚)})
133122, 132eqtr4d 2688 . . . . . . . . . . . . . 14 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})) → {𝑘} = dom ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) ∖ 𝑓))
134133unieqd 4478 . . . . . . . . . . . . 13 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})) → {𝑘} = dom ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) ∖ 𝑓))
13592, 134syl5eqr 2699 . . . . . . . . . . . 12 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})) → 𝑘 = dom ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) ∖ 𝑓))
136 difeq1 3754 . . . . . . . . . . . . . . . 16 (𝑔 = (𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) → (𝑔𝑓) = ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) ∖ 𝑓))
137136dmeqd 5358 . . . . . . . . . . . . . . 15 (𝑔 = (𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) → dom (𝑔𝑓) = dom ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) ∖ 𝑓))
138137unieqd 4478 . . . . . . . . . . . . . 14 (𝑔 = (𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) → dom (𝑔𝑓) = dom ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) ∖ 𝑓))
139138eqeq2d 2661 . . . . . . . . . . . . 13 (𝑔 = (𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) → (𝑘 = dom (𝑔𝑓) ↔ 𝑘 = dom ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) ∖ 𝑓)))
140139rspcev 3340 . . . . . . . . . . . 12 (((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) ∈ 𝑋𝑘 = dom ((𝑛𝐴 ↦ if(𝑛 = 𝑘, 𝑥, (𝑓𝑛))) ∖ 𝑓)) → ∃𝑔𝑋 𝑘 = dom (𝑔𝑓))
14190, 135, 140syl2anc 694 . . . . . . . . . . 11 ((((𝜑𝑓𝑋) ∧ 𝑘𝐴) ∧ 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)})) → ∃𝑔𝑋 𝑘 = dom (𝑔𝑓))
142141ex 449 . . . . . . . . . 10 (((𝜑𝑓𝑋) ∧ 𝑘𝐴) → (𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)}) → ∃𝑔𝑋 𝑘 = dom (𝑔𝑓)))
143142exlimdv 1901 . . . . . . . . 9 (((𝜑𝑓𝑋) ∧ 𝑘𝐴) → (∃𝑥 𝑥 ∈ ( (𝐹𝑘) ∖ {(𝑓𝑘)}) → ∃𝑔𝑋 𝑘 = dom (𝑔𝑓)))
14467, 143syld 47 . . . . . . . 8 (((𝜑𝑓𝑋) ∧ 𝑘𝐴) → (¬ (𝐹𝑘) ≈ 1𝑜 → ∃𝑔𝑋 𝑘 = dom (𝑔𝑓)))
145144expimpd 628 . . . . . . 7 ((𝜑𝑓𝑋) → ((𝑘𝐴 ∧ ¬ (𝐹𝑘) ≈ 1𝑜) → ∃𝑔𝑋 𝑘 = dom (𝑔𝑓)))
14618breq1d 4695 . . . . . . . . 9 (𝑛 = 𝑘 → ( (𝐹𝑛) ≈ 1𝑜 (𝐹𝑘) ≈ 1𝑜))
147146notbid 307 . . . . . . . 8 (𝑛 = 𝑘 → (¬ (𝐹𝑛) ≈ 1𝑜 ↔ ¬ (𝐹𝑘) ≈ 1𝑜))
148147elrab 3396 . . . . . . 7 (𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} ↔ (𝑘𝐴 ∧ ¬ (𝐹𝑘) ≈ 1𝑜))
14941elrnmpt 5404 . . . . . . . 8 (𝑘 ∈ V → (𝑘 ∈ ran (𝑔𝑋 dom (𝑔𝑓)) ↔ ∃𝑔𝑋 𝑘 = dom (𝑔𝑓)))
15091, 149ax-mp 5 . . . . . . 7 (𝑘 ∈ ran (𝑔𝑋 dom (𝑔𝑓)) ↔ ∃𝑔𝑋 𝑘 = dom (𝑔𝑓))
151145, 148, 1503imtr4g 285 . . . . . 6 ((𝜑𝑓𝑋) → (𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} → 𝑘 ∈ ran (𝑔𝑋 dom (𝑔𝑓))))
152151ssrdv 3642 . . . . 5 ((𝜑𝑓𝑋) → {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} ⊆ ran (𝑔𝑋 dom (𝑔𝑓)))
153 ssnum 8900 . . . . 5 ((ran (𝑔𝑋 dom (𝑔𝑓)) ∈ dom card ∧ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} ⊆ ran (𝑔𝑋 dom (𝑔𝑓))) → {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} ∈ dom card)
15447, 152, 153syl2anc 694 . . . 4 ((𝜑𝑓𝑋) → {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} ∈ dom card)
155 xpnum 8815 . . . 4 ((X𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) ∈ dom card ∧ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} ∈ dom card) → (X𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) × {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜}) ∈ dom card)
15633, 154, 155syl2anc 694 . . 3 ((𝜑𝑓𝑋) → (X𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) × {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜}) ∈ dom card)
15784adantr 480 . . . . 5 ((𝜑𝑓𝑋) → 𝐴𝑉)
158 rabexg 4844 . . . . 5 (𝐴𝑉 → {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} ∈ V)
159157, 158syl 17 . . . 4 ((𝜑𝑓𝑋) → {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} ∈ V)
160 fvex 6239 . . . . . . 7 (𝐹𝑘) ∈ V
161160uniex 6995 . . . . . 6 (𝐹𝑘) ∈ V
162161rgenw 2953 . . . . 5 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) ∈ V
163 iunexg 7185 . . . . 5 (({𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} ∈ V ∧ ∀𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) ∈ V) → 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) ∈ V)
164159, 162, 163sylancl 695 . . . 4 ((𝜑𝑓𝑋) → 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) ∈ V)
165 resixp 7985 . . . . . 6 (({𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} ⊆ 𝐴𝑓X𝑘𝐴 (𝐹𝑘)) → (𝑓 ↾ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜}) ∈ X𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘))
16626, 51, 165sylancr 696 . . . . 5 ((𝜑𝑓𝑋) → (𝑓 ↾ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜}) ∈ X𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘))
167 ne0i 3954 . . . . 5 ((𝑓 ↾ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜}) ∈ X𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) → X𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) ≠ ∅)
168166, 167syl 17 . . . 4 ((𝜑𝑓𝑋) → X𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) ≠ ∅)
169 ixpiunwdom 8537 . . . 4 (({𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} ∈ V ∧ 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) ∈ V ∧ X𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) ≠ ∅) → 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) ≼* (X𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) × {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜}))
170159, 164, 168, 169syl3anc 1366 . . 3 ((𝜑𝑓𝑋) → 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) ≼* (X𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) × {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜}))
171 numwdom 8920 . . 3 (((X𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) × {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜}) ∈ dom card ∧ 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) ≼* (X𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) × {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜})) → 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) ∈ dom card)
172156, 170, 171syl2anc 694 . 2 ((𝜑𝑓𝑋) → 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) ∈ dom card)
17315, 172exlimddv 1903 1 (𝜑 𝑘 ∈ {𝑛𝐴 ∣ ¬ (𝐹𝑛) ≈ 1𝑜} (𝐹𝑘) ∈ dom card)
 Colors of variables: wff setvar class Syntax hints:  ¬ wn 3   → wi 4   ↔ wb 196   ∧ wa 383   = wceq 1523  ∃wex 1744   ∈ wcel 2030  {cab 2637   ≠ wne 2823  ∀wral 2941  ∃wrex 2942  {crab 2945  Vcvv 3231   ∖ cdif 3604   ∩ cin 3606   ⊆ wss 3607  ∅c0 3948  ifcif 4119  𝒫 cpw 4191  {csn 4210  ∪ cuni 4468  ∪ ciun 4552   class class class wbr 4685   ↦ cmpt 4762   × cxp 5141  ◡ccnv 5142  dom cdm 5143  ran crn 5144   ↾ cres 5145   “ cima 5146   Fn wfn 5921  ⟶wf 5922  –onto→wfo 5924  ‘cfv 5926   ↦ cmpt2 6692  1𝑜c1o 7598  Xcixp 7950   ≈ cen 7994  Fincfn 7997   ≼* cwdom 8503  cardccrd 8799  Compccmp 21237  UFLcufl 21751 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1762  ax-4 1777  ax-5 1879  ax-6 1945  ax-7 1981  ax-8 2032  ax-9 2039  ax-10 2059  ax-11 2074  ax-12 2087  ax-13 2282  ax-ext 2631  ax-rep 4804  ax-sep 4814  ax-nul 4822  ax-pow 4873  ax-pr 4936  ax-un 6991 This theorem depends on definitions:  df-bi 197  df-or 384  df-an 385  df-3or 1055  df-3an 1056  df-tru 1526  df-ex 1745  df-nf 1750  df-sb 1938  df-eu 2502  df-mo 2503  df-clab 2638  df-cleq 2644  df-clel 2647  df-nfc 2782  df-ne 2824  df-ral 2946  df-rex 2947  df-reu 2948  df-rmo 2949  df-rab 2950  df-v 3233  df-sbc 3469  df-csb 3567  df-dif 3610  df-un 3612  df-in 3614  df-ss 3621  df-pss 3623  df-nul 3949  df-if 4120  df-pw 4193  df-sn 4211  df-pr 4213  df-tp 4215  df-op 4217  df-uni 4469  df-int 4508  df-iun 4554  df-br 4686  df-opab 4746  df-mpt 4763  df-tr 4786  df-id 5053  df-eprel 5058  df-po 5064  df-so 5065  df-fr 5102  df-se 5103  df-we 5104  df-xp 5149  df-rel 5150  df-cnv 5151  df-co 5152  df-dm 5153  df-rn 5154  df-res 5155  df-ima 5156  df-pred 5718  df-ord 5764  df-on 5765  df-lim 5766  df-suc 5767  df-iota 5889  df-fun 5928  df-fn 5929  df-f 5930  df-f1 5931  df-fo 5932  df-f1o 5933  df-fv 5934  df-isom 5935  df-riota 6651  df-ov 6693  df-oprab 6694  df-mpt2 6695  df-om 7108  df-1st 7210  df-2nd 7211  df-wrecs 7452  df-recs 7513  df-rdg 7551  df-1o 7605  df-oadd 7609  df-omul 7610  df-er 7787  df-map 7901  df-ixp 7951  df-en 7998  df-dom 7999  df-fin 8001  df-wdom 8505  df-card 8803  df-acn 8806 This theorem is referenced by:  ptcmplem3  21905
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