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Theorem cfsmolem 9684
 Description: Lemma for cfsmo 9685. (Contributed by Mario Carneiro, 28-Feb-2013.)
Hypotheses
Ref Expression
cfsmolem.2 𝐹 = (𝑧 ∈ V ↦ ((𝑔‘dom 𝑧) ∪ 𝑡 ∈ dom 𝑧 suc (𝑧𝑡)))
cfsmolem.3 𝐺 = (recs(𝐹) ↾ (cf‘𝐴))
Assertion
Ref Expression
cfsmolem (𝐴 ∈ On → ∃𝑓(𝑓:(cf‘𝐴)⟶𝐴 ∧ Smo 𝑓 ∧ ∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝑓𝑤)))
Distinct variable groups:   𝑓,𝑔,𝑡,𝑤,𝑧,𝐴   𝑓,𝐹,𝑡,𝑧   𝑓,𝐺,𝑤,𝑧
Allowed substitution hints:   𝐹(𝑤,𝑔)   𝐺(𝑡,𝑔)

Proof of Theorem cfsmolem
Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 cff1 9672 . 2 (𝐴 ∈ On → ∃𝑔(𝑔:(cf‘𝐴)–1-1𝐴 ∧ ∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝑔𝑤)))
2 cfon 9669 . . . . . . . . . . . 12 (cf‘𝐴) ∈ On
32oneli 6291 . . . . . . . . . . 11 (𝑥 ∈ (cf‘𝐴) → 𝑥 ∈ On)
433ad2ant3 1129 . . . . . . . . . 10 ((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) → 𝑥 ∈ On)
5 eleq1w 2893 . . . . . . . . . . . . 13 (𝑥 = 𝑦 → (𝑥 ∈ (cf‘𝐴) ↔ 𝑦 ∈ (cf‘𝐴)))
653anbi3d 1435 . . . . . . . . . . . 12 (𝑥 = 𝑦 → ((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) ↔ (𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑦 ∈ (cf‘𝐴))))
7 fveq2 6663 . . . . . . . . . . . . 13 (𝑥 = 𝑦 → (𝐺𝑥) = (𝐺𝑦))
87eleq1d 2895 . . . . . . . . . . . 12 (𝑥 = 𝑦 → ((𝐺𝑥) ∈ 𝐴 ↔ (𝐺𝑦) ∈ 𝐴))
96, 8imbi12d 347 . . . . . . . . . . 11 (𝑥 = 𝑦 → (((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) → (𝐺𝑥) ∈ 𝐴) ↔ ((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑦 ∈ (cf‘𝐴)) → (𝐺𝑦) ∈ 𝐴)))
10 simpl1 1185 . . . . . . . . . . . . . . 15 (((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) ∧ 𝑦𝑥) → 𝑔:(cf‘𝐴)–1-1𝐴)
11 simpl2 1186 . . . . . . . . . . . . . . 15 (((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) ∧ 𝑦𝑥) → 𝐴 ∈ On)
12 ontr1 6230 . . . . . . . . . . . . . . . . . 18 ((cf‘𝐴) ∈ On → ((𝑦𝑥𝑥 ∈ (cf‘𝐴)) → 𝑦 ∈ (cf‘𝐴)))
132, 12ax-mp 5 . . . . . . . . . . . . . . . . 17 ((𝑦𝑥𝑥 ∈ (cf‘𝐴)) → 𝑦 ∈ (cf‘𝐴))
1413ancoms 461 . . . . . . . . . . . . . . . 16 ((𝑥 ∈ (cf‘𝐴) ∧ 𝑦𝑥) → 𝑦 ∈ (cf‘𝐴))
15143ad2antl3 1181 . . . . . . . . . . . . . . 15 (((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) ∧ 𝑦𝑥) → 𝑦 ∈ (cf‘𝐴))
16 pm2.27 42 . . . . . . . . . . . . . . 15 ((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑦 ∈ (cf‘𝐴)) → (((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑦 ∈ (cf‘𝐴)) → (𝐺𝑦) ∈ 𝐴) → (𝐺𝑦) ∈ 𝐴))
1710, 11, 15, 16syl3anc 1365 . . . . . . . . . . . . . 14 (((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) ∧ 𝑦𝑥) → (((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑦 ∈ (cf‘𝐴)) → (𝐺𝑦) ∈ 𝐴) → (𝐺𝑦) ∈ 𝐴))
1817ralimdva 3175 . . . . . . . . . . . . 13 ((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) → (∀𝑦𝑥 ((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑦 ∈ (cf‘𝐴)) → (𝐺𝑦) ∈ 𝐴) → ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴))
19 cfsmolem.3 . . . . . . . . . . . . . . . . . . . 20 𝐺 = (recs(𝐹) ↾ (cf‘𝐴))
2019fveq1i 6664 . . . . . . . . . . . . . . . . . . 19 (𝐺𝑥) = ((recs(𝐹) ↾ (cf‘𝐴))‘𝑥)
21 fvres 6682 . . . . . . . . . . . . . . . . . . 19 (𝑥 ∈ (cf‘𝐴) → ((recs(𝐹) ↾ (cf‘𝐴))‘𝑥) = (recs(𝐹)‘𝑥))
2220, 21syl5eq 2866 . . . . . . . . . . . . . . . . . 18 (𝑥 ∈ (cf‘𝐴) → (𝐺𝑥) = (recs(𝐹)‘𝑥))
23 recsval 8032 . . . . . . . . . . . . . . . . . . . . 21 (𝑥 ∈ On → (recs(𝐹)‘𝑥) = (𝐹‘(recs(𝐹) ↾ 𝑥)))
24 recsfnon 8031 . . . . . . . . . . . . . . . . . . . . . . . 24 recs(𝐹) Fn On
25 fnfun 6446 . . . . . . . . . . . . . . . . . . . . . . . 24 (recs(𝐹) Fn On → Fun recs(𝐹))
2624, 25ax-mp 5 . . . . . . . . . . . . . . . . . . . . . . 23 Fun recs(𝐹)
27 vex 3496 . . . . . . . . . . . . . . . . . . . . . . 23 𝑥 ∈ V
28 resfunexg 6970 . . . . . . . . . . . . . . . . . . . . . . 23 ((Fun recs(𝐹) ∧ 𝑥 ∈ V) → (recs(𝐹) ↾ 𝑥) ∈ V)
2926, 27, 28mp2an 690 . . . . . . . . . . . . . . . . . . . . . 22 (recs(𝐹) ↾ 𝑥) ∈ V
30 dmeq 5765 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝑧 = (recs(𝐹) ↾ 𝑥) → dom 𝑧 = dom (recs(𝐹) ↾ 𝑥))
3130fveq2d 6667 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝑧 = (recs(𝐹) ↾ 𝑥) → (𝑔‘dom 𝑧) = (𝑔‘dom (recs(𝐹) ↾ 𝑥)))
32 fveq1 6662 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝑧 = (recs(𝐹) ↾ 𝑥) → (𝑧𝑡) = ((recs(𝐹) ↾ 𝑥)‘𝑡))
33 suceq 6249 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝑧𝑡) = ((recs(𝐹) ↾ 𝑥)‘𝑡) → suc (𝑧𝑡) = suc ((recs(𝐹) ↾ 𝑥)‘𝑡))
3432, 33syl 17 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝑧 = (recs(𝐹) ↾ 𝑥) → suc (𝑧𝑡) = suc ((recs(𝐹) ↾ 𝑥)‘𝑡))
3530, 34iuneq12d 4938 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝑧 = (recs(𝐹) ↾ 𝑥) → 𝑡 ∈ dom 𝑧 suc (𝑧𝑡) = 𝑡 ∈ dom (recs(𝐹) ↾ 𝑥)suc ((recs(𝐹) ↾ 𝑥)‘𝑡))
3631, 35uneq12d 4138 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑧 = (recs(𝐹) ↾ 𝑥) → ((𝑔‘dom 𝑧) ∪ 𝑡 ∈ dom 𝑧 suc (𝑧𝑡)) = ((𝑔‘dom (recs(𝐹) ↾ 𝑥)) ∪ 𝑡 ∈ dom (recs(𝐹) ↾ 𝑥)suc ((recs(𝐹) ↾ 𝑥)‘𝑡)))
37 cfsmolem.2 . . . . . . . . . . . . . . . . . . . . . . 23 𝐹 = (𝑧 ∈ V ↦ ((𝑔‘dom 𝑧) ∪ 𝑡 ∈ dom 𝑧 suc (𝑧𝑡)))
38 fvex 6676 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝑔‘dom (recs(𝐹) ↾ 𝑥)) ∈ V
3929dmex 7608 . . . . . . . . . . . . . . . . . . . . . . . . 25 dom (recs(𝐹) ↾ 𝑥) ∈ V
40 fvex 6676 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((recs(𝐹) ↾ 𝑥)‘𝑡) ∈ V
4140sucex 7518 . . . . . . . . . . . . . . . . . . . . . . . . 25 suc ((recs(𝐹) ↾ 𝑥)‘𝑡) ∈ V
4239, 41iunex 7661 . . . . . . . . . . . . . . . . . . . . . . . 24 𝑡 ∈ dom (recs(𝐹) ↾ 𝑥)suc ((recs(𝐹) ↾ 𝑥)‘𝑡) ∈ V
4338, 42unex 7461 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑔‘dom (recs(𝐹) ↾ 𝑥)) ∪ 𝑡 ∈ dom (recs(𝐹) ↾ 𝑥)suc ((recs(𝐹) ↾ 𝑥)‘𝑡)) ∈ V
4436, 37, 43fvmpt 6761 . . . . . . . . . . . . . . . . . . . . . 22 ((recs(𝐹) ↾ 𝑥) ∈ V → (𝐹‘(recs(𝐹) ↾ 𝑥)) = ((𝑔‘dom (recs(𝐹) ↾ 𝑥)) ∪ 𝑡 ∈ dom (recs(𝐹) ↾ 𝑥)suc ((recs(𝐹) ↾ 𝑥)‘𝑡)))
4529, 44ax-mp 5 . . . . . . . . . . . . . . . . . . . . 21 (𝐹‘(recs(𝐹) ↾ 𝑥)) = ((𝑔‘dom (recs(𝐹) ↾ 𝑥)) ∪ 𝑡 ∈ dom (recs(𝐹) ↾ 𝑥)suc ((recs(𝐹) ↾ 𝑥)‘𝑡))
4623, 45syl6eq 2870 . . . . . . . . . . . . . . . . . . . 20 (𝑥 ∈ On → (recs(𝐹)‘𝑥) = ((𝑔‘dom (recs(𝐹) ↾ 𝑥)) ∪ 𝑡 ∈ dom (recs(𝐹) ↾ 𝑥)suc ((recs(𝐹) ↾ 𝑥)‘𝑡)))
47 onss 7497 . . . . . . . . . . . . . . . . . . . . . 22 (𝑥 ∈ On → 𝑥 ⊆ On)
48 fnssres 6463 . . . . . . . . . . . . . . . . . . . . . 22 ((recs(𝐹) Fn On ∧ 𝑥 ⊆ On) → (recs(𝐹) ↾ 𝑥) Fn 𝑥)
4924, 47, 48sylancr 589 . . . . . . . . . . . . . . . . . . . . 21 (𝑥 ∈ On → (recs(𝐹) ↾ 𝑥) Fn 𝑥)
50 fndm 6448 . . . . . . . . . . . . . . . . . . . . 21 ((recs(𝐹) ↾ 𝑥) Fn 𝑥 → dom (recs(𝐹) ↾ 𝑥) = 𝑥)
51 fveq2 6663 . . . . . . . . . . . . . . . . . . . . . 22 (dom (recs(𝐹) ↾ 𝑥) = 𝑥 → (𝑔‘dom (recs(𝐹) ↾ 𝑥)) = (𝑔𝑥))
52 iuneq1 4926 . . . . . . . . . . . . . . . . . . . . . . 23 (dom (recs(𝐹) ↾ 𝑥) = 𝑥 𝑡 ∈ dom (recs(𝐹) ↾ 𝑥)suc ((recs(𝐹) ↾ 𝑥)‘𝑡) = 𝑡𝑥 suc ((recs(𝐹) ↾ 𝑥)‘𝑡))
53 fvres 6682 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝑡𝑥 → ((recs(𝐹) ↾ 𝑥)‘𝑡) = (recs(𝐹)‘𝑡))
54 suceq 6249 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((recs(𝐹) ↾ 𝑥)‘𝑡) = (recs(𝐹)‘𝑡) → suc ((recs(𝐹) ↾ 𝑥)‘𝑡) = suc (recs(𝐹)‘𝑡))
5553, 54syl 17 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝑡𝑥 → suc ((recs(𝐹) ↾ 𝑥)‘𝑡) = suc (recs(𝐹)‘𝑡))
5655iuneq2i 4931 . . . . . . . . . . . . . . . . . . . . . . . 24 𝑡𝑥 suc ((recs(𝐹) ↾ 𝑥)‘𝑡) = 𝑡𝑥 suc (recs(𝐹)‘𝑡)
57 fveq2 6663 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝑦 = 𝑡 → (recs(𝐹)‘𝑦) = (recs(𝐹)‘𝑡))
58 suceq 6249 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((recs(𝐹)‘𝑦) = (recs(𝐹)‘𝑡) → suc (recs(𝐹)‘𝑦) = suc (recs(𝐹)‘𝑡))
5957, 58syl 17 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝑦 = 𝑡 → suc (recs(𝐹)‘𝑦) = suc (recs(𝐹)‘𝑡))
6059cbviunv 4956 . . . . . . . . . . . . . . . . . . . . . . . 24 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝑡𝑥 suc (recs(𝐹)‘𝑡)
6156, 60eqtr4i 2845 . . . . . . . . . . . . . . . . . . . . . . 23 𝑡𝑥 suc ((recs(𝐹) ↾ 𝑥)‘𝑡) = 𝑦𝑥 suc (recs(𝐹)‘𝑦)
6252, 61syl6eq 2870 . . . . . . . . . . . . . . . . . . . . . 22 (dom (recs(𝐹) ↾ 𝑥) = 𝑥 𝑡 ∈ dom (recs(𝐹) ↾ 𝑥)suc ((recs(𝐹) ↾ 𝑥)‘𝑡) = 𝑦𝑥 suc (recs(𝐹)‘𝑦))
6351, 62uneq12d 4138 . . . . . . . . . . . . . . . . . . . . 21 (dom (recs(𝐹) ↾ 𝑥) = 𝑥 → ((𝑔‘dom (recs(𝐹) ↾ 𝑥)) ∪ 𝑡 ∈ dom (recs(𝐹) ↾ 𝑥)suc ((recs(𝐹) ↾ 𝑥)‘𝑡)) = ((𝑔𝑥) ∪ 𝑦𝑥 suc (recs(𝐹)‘𝑦)))
6449, 50, 633syl 18 . . . . . . . . . . . . . . . . . . . 20 (𝑥 ∈ On → ((𝑔‘dom (recs(𝐹) ↾ 𝑥)) ∪ 𝑡 ∈ dom (recs(𝐹) ↾ 𝑥)suc ((recs(𝐹) ↾ 𝑥)‘𝑡)) = ((𝑔𝑥) ∪ 𝑦𝑥 suc (recs(𝐹)‘𝑦)))
6546, 64eqtrd 2854 . . . . . . . . . . . . . . . . . . 19 (𝑥 ∈ On → (recs(𝐹)‘𝑥) = ((𝑔𝑥) ∪ 𝑦𝑥 suc (recs(𝐹)‘𝑦)))
663, 65syl 17 . . . . . . . . . . . . . . . . . 18 (𝑥 ∈ (cf‘𝐴) → (recs(𝐹)‘𝑥) = ((𝑔𝑥) ∪ 𝑦𝑥 suc (recs(𝐹)‘𝑦)))
6722, 66eqtrd 2854 . . . . . . . . . . . . . . . . 17 (𝑥 ∈ (cf‘𝐴) → (𝐺𝑥) = ((𝑔𝑥) ∪ 𝑦𝑥 suc (recs(𝐹)‘𝑦)))
68673ad2ant2 1128 . . . . . . . . . . . . . . . 16 (((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On) ∧ 𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → (𝐺𝑥) = ((𝑔𝑥) ∪ 𝑦𝑥 suc (recs(𝐹)‘𝑦)))
69 eloni 6194 . . . . . . . . . . . . . . . . . . 19 (𝐴 ∈ On → Ord 𝐴)
7069adantl 484 . . . . . . . . . . . . . . . . . 18 ((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On) → Ord 𝐴)
71703ad2ant1 1127 . . . . . . . . . . . . . . . . 17 (((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On) ∧ 𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → Ord 𝐴)
72 f1f 6568 . . . . . . . . . . . . . . . . . . . 20 (𝑔:(cf‘𝐴)–1-1𝐴𝑔:(cf‘𝐴)⟶𝐴)
7372ffvelrnda 6844 . . . . . . . . . . . . . . . . . . 19 ((𝑔:(cf‘𝐴)–1-1𝐴𝑥 ∈ (cf‘𝐴)) → (𝑔𝑥) ∈ 𝐴)
7473adantlr 713 . . . . . . . . . . . . . . . . . 18 (((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On) ∧ 𝑥 ∈ (cf‘𝐴)) → (𝑔𝑥) ∈ 𝐴)
75743adant3 1126 . . . . . . . . . . . . . . . . 17 (((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On) ∧ 𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → (𝑔𝑥) ∈ 𝐴)
7619fveq1i 6664 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (𝐺𝑦) = ((recs(𝐹) ↾ (cf‘𝐴))‘𝑦)
7713fvresd 6683 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝑦𝑥𝑥 ∈ (cf‘𝐴)) → ((recs(𝐹) ↾ (cf‘𝐴))‘𝑦) = (recs(𝐹)‘𝑦))
7876, 77syl5eq 2866 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝑦𝑥𝑥 ∈ (cf‘𝐴)) → (𝐺𝑦) = (recs(𝐹)‘𝑦))
7978adantrl 714 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝑦𝑥 ∧ (𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴))) → (𝐺𝑦) = (recs(𝐹)‘𝑦))
8079ancoms 461 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) ∧ 𝑦𝑥) → (𝐺𝑦) = (recs(𝐹)‘𝑦))
8180eleq1d 2895 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) ∧ 𝑦𝑥) → ((𝐺𝑦) ∈ 𝐴 ↔ (recs(𝐹)‘𝑦) ∈ 𝐴))
82 ordsucss 7525 . . . . . . . . . . . . . . . . . . . . . . . . 25 (Ord 𝐴 → ((recs(𝐹)‘𝑦) ∈ 𝐴 → suc (recs(𝐹)‘𝑦) ⊆ 𝐴))
8369, 82syl 17 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝐴 ∈ On → ((recs(𝐹)‘𝑦) ∈ 𝐴 → suc (recs(𝐹)‘𝑦) ⊆ 𝐴))
8483ad2antrr 724 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) ∧ 𝑦𝑥) → ((recs(𝐹)‘𝑦) ∈ 𝐴 → suc (recs(𝐹)‘𝑦) ⊆ 𝐴))
8581, 84sylbid 242 . . . . . . . . . . . . . . . . . . . . . 22 (((𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) ∧ 𝑦𝑥) → ((𝐺𝑦) ∈ 𝐴 → suc (recs(𝐹)‘𝑦) ⊆ 𝐴))
8685ralimdva 3175 . . . . . . . . . . . . . . . . . . . . 21 ((𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) → (∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴 → ∀𝑦𝑥 suc (recs(𝐹)‘𝑦) ⊆ 𝐴))
87 iunss 4960 . . . . . . . . . . . . . . . . . . . . 21 ( 𝑦𝑥 suc (recs(𝐹)‘𝑦) ⊆ 𝐴 ↔ ∀𝑦𝑥 suc (recs(𝐹)‘𝑦) ⊆ 𝐴)
8886, 87syl6ibr 254 . . . . . . . . . . . . . . . . . . . 20 ((𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) → (∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴 𝑦𝑥 suc (recs(𝐹)‘𝑦) ⊆ 𝐴))
89883impia 1111 . . . . . . . . . . . . . . . . . . 19 ((𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → 𝑦𝑥 suc (recs(𝐹)‘𝑦) ⊆ 𝐴)
90 onelon 6209 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((𝐴 ∈ On ∧ (recs(𝐹)‘𝑦) ∈ 𝐴) → (recs(𝐹)‘𝑦) ∈ On)
9190ex 415 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (𝐴 ∈ On → ((recs(𝐹)‘𝑦) ∈ 𝐴 → (recs(𝐹)‘𝑦) ∈ On))
9291ad2antrr 724 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) ∧ 𝑦𝑥) → ((recs(𝐹)‘𝑦) ∈ 𝐴 → (recs(𝐹)‘𝑦) ∈ On))
9381, 92sylbid 242 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) ∧ 𝑦𝑥) → ((𝐺𝑦) ∈ 𝐴 → (recs(𝐹)‘𝑦) ∈ On))
94 suceloni 7520 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((recs(𝐹)‘𝑦) ∈ On → suc (recs(𝐹)‘𝑦) ∈ On)
9593, 94syl6 35 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) ∧ 𝑦𝑥) → ((𝐺𝑦) ∈ 𝐴 → suc (recs(𝐹)‘𝑦) ∈ On))
9695ralimdva 3175 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) → (∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴 → ∀𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ On))
97963impia 1111 . . . . . . . . . . . . . . . . . . . . . 22 ((𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → ∀𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ On)
98 iunon 7968 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑥 ∈ V ∧ ∀𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ On) → 𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ On)
9927, 97, 98sylancr 589 . . . . . . . . . . . . . . . . . . . . 21 ((𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → 𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ On)
100 simp1 1130 . . . . . . . . . . . . . . . . . . . . 21 ((𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → 𝐴 ∈ On)
101 onsseleq 6225 . . . . . . . . . . . . . . . . . . . . 21 (( 𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ On ∧ 𝐴 ∈ On) → ( 𝑦𝑥 suc (recs(𝐹)‘𝑦) ⊆ 𝐴 ↔ ( 𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ 𝐴 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴)))
10299, 100, 101syl2anc 586 . . . . . . . . . . . . . . . . . . . 20 ((𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → ( 𝑦𝑥 suc (recs(𝐹)‘𝑦) ⊆ 𝐴 ↔ ( 𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ 𝐴 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴)))
103 idd 24 . . . . . . . . . . . . . . . . . . . . 21 ((𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → ( 𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ 𝐴 𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ 𝐴))
104 simpll 765 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) ∧ ( 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴𝐴 ∈ On)) → 𝑥 ∈ (cf‘𝐴))
105 simprr 771 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (((𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) ∧ ( 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴𝐴 ∈ On)) → 𝐴 ∈ On)
1063ad2antrr 724 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (((𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) ∧ ( 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴𝐴 ∈ On)) → 𝑥 ∈ On)
1073, 49syl 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (𝑥 ∈ (cf‘𝐴) → (recs(𝐹) ↾ 𝑥) Fn 𝑥)
108107adantr 483 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ((𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → (recs(𝐹) ↾ 𝑥) Fn 𝑥)
10978ancoms 461 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ((𝑥 ∈ (cf‘𝐴) ∧ 𝑦𝑥) → (𝐺𝑦) = (recs(𝐹)‘𝑦))
110 fvres 6682 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 (𝑦𝑥 → ((recs(𝐹) ↾ 𝑥)‘𝑦) = (recs(𝐹)‘𝑦))
111110adantl 484 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ((𝑥 ∈ (cf‘𝐴) ∧ 𝑦𝑥) → ((recs(𝐹) ↾ 𝑥)‘𝑦) = (recs(𝐹)‘𝑦))
112109, 111eqtr4d 2857 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((𝑥 ∈ (cf‘𝐴) ∧ 𝑦𝑥) → (𝐺𝑦) = ((recs(𝐹) ↾ 𝑥)‘𝑦))
113112eleq1d 2895 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((𝑥 ∈ (cf‘𝐴) ∧ 𝑦𝑥) → ((𝐺𝑦) ∈ 𝐴 ↔ ((recs(𝐹) ↾ 𝑥)‘𝑦) ∈ 𝐴))
114113ralbidva 3194 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (𝑥 ∈ (cf‘𝐴) → (∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴 ↔ ∀𝑦𝑥 ((recs(𝐹) ↾ 𝑥)‘𝑦) ∈ 𝐴))
115114biimpa 479 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ((𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → ∀𝑦𝑥 ((recs(𝐹) ↾ 𝑥)‘𝑦) ∈ 𝐴)
116 ffnfv 6875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ((recs(𝐹) ↾ 𝑥):𝑥𝐴 ↔ ((recs(𝐹) ↾ 𝑥) Fn 𝑥 ∧ ∀𝑦𝑥 ((recs(𝐹) ↾ 𝑥)‘𝑦) ∈ 𝐴))
117108, 115, 116sylanbrc 585 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 ((𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → (recs(𝐹) ↾ 𝑥):𝑥𝐴)
118 eleq2 2899 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 ( 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴 → (𝑡 𝑦𝑥 suc (recs(𝐹)‘𝑦) ↔ 𝑡𝐴))
119118biimpar 480 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 (( 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴𝑡𝐴) → 𝑡 𝑦𝑥 suc (recs(𝐹)‘𝑦))
120119adantrl 714 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 (( 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴 ∧ (𝐴 ∈ On ∧ 𝑡𝐴)) → 𝑡 𝑦𝑥 suc (recs(𝐹)‘𝑦))
1211203adant1 1124 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 (((recs(𝐹) ↾ 𝑥):𝑥𝐴 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴 ∧ (𝐴 ∈ On ∧ 𝑡𝐴)) → 𝑡 𝑦𝑥 suc (recs(𝐹)‘𝑦))
122 onelon 6209 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 ((𝐴 ∈ On ∧ 𝑡𝐴) → 𝑡 ∈ On)
123110adantl 484 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 (((recs(𝐹) ↾ 𝑥):𝑥𝐴𝑦𝑥) → ((recs(𝐹) ↾ 𝑥)‘𝑦) = (recs(𝐹)‘𝑦))
124 ffvelrn 6842 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 (((recs(𝐹) ↾ 𝑥):𝑥𝐴𝑦𝑥) → ((recs(𝐹) ↾ 𝑥)‘𝑦) ∈ 𝐴)
125123, 124eqeltrrd 2912 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 (((recs(𝐹) ↾ 𝑥):𝑥𝐴𝑦𝑥) → (recs(𝐹)‘𝑦) ∈ 𝐴)
126125, 90sylan2 594 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 ((𝐴 ∈ On ∧ ((recs(𝐹) ↾ 𝑥):𝑥𝐴𝑦𝑥)) → (recs(𝐹)‘𝑦) ∈ On)
127126adantlr 713 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 (((𝐴 ∈ On ∧ 𝑡𝐴) ∧ ((recs(𝐹) ↾ 𝑥):𝑥𝐴𝑦𝑥)) → (recs(𝐹)‘𝑦) ∈ On)
128 onsssuc 6271 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 ((𝑡 ∈ On ∧ (recs(𝐹)‘𝑦) ∈ On) → (𝑡 ⊆ (recs(𝐹)‘𝑦) ↔ 𝑡 ∈ suc (recs(𝐹)‘𝑦)))
129122, 127, 128syl2an2r 683 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 (((𝐴 ∈ On ∧ 𝑡𝐴) ∧ ((recs(𝐹) ↾ 𝑥):𝑥𝐴𝑦𝑥)) → (𝑡 ⊆ (recs(𝐹)‘𝑦) ↔ 𝑡 ∈ suc (recs(𝐹)‘𝑦)))
130129anassrs 470 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 ((((𝐴 ∈ On ∧ 𝑡𝐴) ∧ (recs(𝐹) ↾ 𝑥):𝑥𝐴) ∧ 𝑦𝑥) → (𝑡 ⊆ (recs(𝐹)‘𝑦) ↔ 𝑡 ∈ suc (recs(𝐹)‘𝑦)))
131130rexbidva 3294 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 (((𝐴 ∈ On ∧ 𝑡𝐴) ∧ (recs(𝐹) ↾ 𝑥):𝑥𝐴) → (∃𝑦𝑥 𝑡 ⊆ (recs(𝐹)‘𝑦) ↔ ∃𝑦𝑥 𝑡 ∈ suc (recs(𝐹)‘𝑦)))
132 eliun 4914 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 (𝑡 𝑦𝑥 suc (recs(𝐹)‘𝑦) ↔ ∃𝑦𝑥 𝑡 ∈ suc (recs(𝐹)‘𝑦))
133131, 132syl6bbr 291 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 (((𝐴 ∈ On ∧ 𝑡𝐴) ∧ (recs(𝐹) ↾ 𝑥):𝑥𝐴) → (∃𝑦𝑥 𝑡 ⊆ (recs(𝐹)‘𝑦) ↔ 𝑡 𝑦𝑥 suc (recs(𝐹)‘𝑦)))
134133ancoms 461 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 (((recs(𝐹) ↾ 𝑥):𝑥𝐴 ∧ (𝐴 ∈ On ∧ 𝑡𝐴)) → (∃𝑦𝑥 𝑡 ⊆ (recs(𝐹)‘𝑦) ↔ 𝑡 𝑦𝑥 suc (recs(𝐹)‘𝑦)))
1351343adant2 1125 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 (((recs(𝐹) ↾ 𝑥):𝑥𝐴 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴 ∧ (𝐴 ∈ On ∧ 𝑡𝐴)) → (∃𝑦𝑥 𝑡 ⊆ (recs(𝐹)‘𝑦) ↔ 𝑡 𝑦𝑥 suc (recs(𝐹)‘𝑦)))
136121, 135mpbird 259 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 (((recs(𝐹) ↾ 𝑥):𝑥𝐴 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴 ∧ (𝐴 ∈ On ∧ 𝑡𝐴)) → ∃𝑦𝑥 𝑡 ⊆ (recs(𝐹)‘𝑦))
1371363expa 1112 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ((((recs(𝐹) ↾ 𝑥):𝑥𝐴 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴) ∧ (𝐴 ∈ On ∧ 𝑡𝐴)) → ∃𝑦𝑥 𝑡 ⊆ (recs(𝐹)‘𝑦))
138137anassrs 470 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((((recs(𝐹) ↾ 𝑥):𝑥𝐴 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴) ∧ 𝐴 ∈ On) ∧ 𝑡𝐴) → ∃𝑦𝑥 𝑡 ⊆ (recs(𝐹)‘𝑦))
139138ralrimiva 3180 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((((recs(𝐹) ↾ 𝑥):𝑥𝐴 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴) ∧ 𝐴 ∈ On) → ∀𝑡𝐴𝑦𝑥 𝑡 ⊆ (recs(𝐹)‘𝑦))
140139expl 460 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ((recs(𝐹) ↾ 𝑥):𝑥𝐴 → (( 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴𝐴 ∈ On) → ∀𝑡𝐴𝑦𝑥 𝑡 ⊆ (recs(𝐹)‘𝑦)))
141117, 140syl 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ((𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → (( 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴𝐴 ∈ On) → ∀𝑡𝐴𝑦𝑥 𝑡 ⊆ (recs(𝐹)‘𝑦)))
142141imp 409 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (((𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) ∧ ( 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴𝐴 ∈ On)) → ∀𝑡𝐴𝑦𝑥 𝑡 ⊆ (recs(𝐹)‘𝑦))
143 feq1 6488 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (𝑓 = (recs(𝐹) ↾ 𝑥) → (𝑓:𝑥𝐴 ↔ (recs(𝐹) ↾ 𝑥):𝑥𝐴))
144 fveq1 6662 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 (𝑓 = (recs(𝐹) ↾ 𝑥) → (𝑓𝑦) = ((recs(𝐹) ↾ 𝑥)‘𝑦))
145144sseq2d 3997 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (𝑓 = (recs(𝐹) ↾ 𝑥) → (𝑡 ⊆ (𝑓𝑦) ↔ 𝑡 ⊆ ((recs(𝐹) ↾ 𝑥)‘𝑦)))
146145rexbidv 3295 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (𝑓 = (recs(𝐹) ↾ 𝑥) → (∃𝑦𝑥 𝑡 ⊆ (𝑓𝑦) ↔ ∃𝑦𝑥 𝑡 ⊆ ((recs(𝐹) ↾ 𝑥)‘𝑦)))
147110sseq2d 3997 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (𝑦𝑥 → (𝑡 ⊆ ((recs(𝐹) ↾ 𝑥)‘𝑦) ↔ 𝑡 ⊆ (recs(𝐹)‘𝑦)))
148147rexbiia 3244 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (∃𝑦𝑥 𝑡 ⊆ ((recs(𝐹) ↾ 𝑥)‘𝑦) ↔ ∃𝑦𝑥 𝑡 ⊆ (recs(𝐹)‘𝑦))
149146, 148syl6bb 289 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 (𝑓 = (recs(𝐹) ↾ 𝑥) → (∃𝑦𝑥 𝑡 ⊆ (𝑓𝑦) ↔ ∃𝑦𝑥 𝑡 ⊆ (recs(𝐹)‘𝑦)))
150149ralbidv 3195 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (𝑓 = (recs(𝐹) ↾ 𝑥) → (∀𝑡𝐴𝑦𝑥 𝑡 ⊆ (𝑓𝑦) ↔ ∀𝑡𝐴𝑦𝑥 𝑡 ⊆ (recs(𝐹)‘𝑦)))
151143, 150anbi12d 632 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (𝑓 = (recs(𝐹) ↾ 𝑥) → ((𝑓:𝑥𝐴 ∧ ∀𝑡𝐴𝑦𝑥 𝑡 ⊆ (𝑓𝑦)) ↔ ((recs(𝐹) ↾ 𝑥):𝑥𝐴 ∧ ∀𝑡𝐴𝑦𝑥 𝑡 ⊆ (recs(𝐹)‘𝑦))))
15229, 151spcev 3605 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (((recs(𝐹) ↾ 𝑥):𝑥𝐴 ∧ ∀𝑡𝐴𝑦𝑥 𝑡 ⊆ (recs(𝐹)‘𝑦)) → ∃𝑓(𝑓:𝑥𝐴 ∧ ∀𝑡𝐴𝑦𝑥 𝑡 ⊆ (𝑓𝑦)))
153117, 142, 152syl2an2r 683 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (((𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) ∧ ( 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴𝐴 ∈ On)) → ∃𝑓(𝑓:𝑥𝐴 ∧ ∀𝑡𝐴𝑦𝑥 𝑡 ⊆ (𝑓𝑦)))
154 cfflb 9673 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 ((𝐴 ∈ On ∧ 𝑥 ∈ On) → (∃𝑓(𝑓:𝑥𝐴 ∧ ∀𝑡𝐴𝑦𝑥 𝑡 ⊆ (𝑓𝑦)) → (cf‘𝐴) ⊆ 𝑥))
155154imp 409 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (((𝐴 ∈ On ∧ 𝑥 ∈ On) ∧ ∃𝑓(𝑓:𝑥𝐴 ∧ ∀𝑡𝐴𝑦𝑥 𝑡 ⊆ (𝑓𝑦))) → (cf‘𝐴) ⊆ 𝑥)
156105, 106, 153, 155syl21anc 835 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (((𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) ∧ ( 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴𝐴 ∈ On)) → (cf‘𝐴) ⊆ 𝑥)
157 ontri1 6218 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (((cf‘𝐴) ∈ On ∧ 𝑥 ∈ On) → ((cf‘𝐴) ⊆ 𝑥 ↔ ¬ 𝑥 ∈ (cf‘𝐴)))
1582, 3, 157sylancr 589 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (𝑥 ∈ (cf‘𝐴) → ((cf‘𝐴) ⊆ 𝑥 ↔ ¬ 𝑥 ∈ (cf‘𝐴)))
159158ad2antrr 724 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (((𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) ∧ ( 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴𝐴 ∈ On)) → ((cf‘𝐴) ⊆ 𝑥 ↔ ¬ 𝑥 ∈ (cf‘𝐴)))
160156, 159mpbid 234 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) ∧ ( 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴𝐴 ∈ On)) → ¬ 𝑥 ∈ (cf‘𝐴))
161104, 160pm2.21dd 197 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) ∧ ( 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴𝐴 ∈ On)) → 𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ 𝐴)
162161ex 415 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → (( 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴𝐴 ∈ On) → 𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ 𝐴))
163162expcomd 419 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → (𝐴 ∈ On → ( 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴 𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ 𝐴)))
164163com12 32 . . . . . . . . . . . . . . . . . . . . . 22 (𝐴 ∈ On → ((𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → ( 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴 𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ 𝐴)))
1651643impib 1110 . . . . . . . . . . . . . . . . . . . . 21 ((𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → ( 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴 𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ 𝐴))
166103, 165jaod 855 . . . . . . . . . . . . . . . . . . . 20 ((𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → (( 𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ 𝐴 𝑦𝑥 suc (recs(𝐹)‘𝑦) = 𝐴) → 𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ 𝐴))
167102, 166sylbid 242 . . . . . . . . . . . . . . . . . . 19 ((𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → ( 𝑦𝑥 suc (recs(𝐹)‘𝑦) ⊆ 𝐴 𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ 𝐴))
16889, 167mpd 15 . . . . . . . . . . . . . . . . . 18 ((𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → 𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ 𝐴)
1691683adant1l 1170 . . . . . . . . . . . . . . . . 17 (((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On) ∧ 𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → 𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ 𝐴)
170 ordunel 7534 . . . . . . . . . . . . . . . . 17 ((Ord 𝐴 ∧ (𝑔𝑥) ∈ 𝐴 𝑦𝑥 suc (recs(𝐹)‘𝑦) ∈ 𝐴) → ((𝑔𝑥) ∪ 𝑦𝑥 suc (recs(𝐹)‘𝑦)) ∈ 𝐴)
17171, 75, 169, 170syl3anc 1365 . . . . . . . . . . . . . . . 16 (((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On) ∧ 𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → ((𝑔𝑥) ∪ 𝑦𝑥 suc (recs(𝐹)‘𝑦)) ∈ 𝐴)
17268, 171eqeltrd 2911 . . . . . . . . . . . . . . 15 (((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On) ∧ 𝑥 ∈ (cf‘𝐴) ∧ ∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴) → (𝐺𝑥) ∈ 𝐴)
1731723expia 1115 . . . . . . . . . . . . . 14 (((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On) ∧ 𝑥 ∈ (cf‘𝐴)) → (∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴 → (𝐺𝑥) ∈ 𝐴))
1741733impa 1104 . . . . . . . . . . . . 13 ((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) → (∀𝑦𝑥 (𝐺𝑦) ∈ 𝐴 → (𝐺𝑥) ∈ 𝐴))
17518, 174syldc 48 . . . . . . . . . . . 12 (∀𝑦𝑥 ((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑦 ∈ (cf‘𝐴)) → (𝐺𝑦) ∈ 𝐴) → ((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) → (𝐺𝑥) ∈ 𝐴))
176175a1i 11 . . . . . . . . . . 11 (𝑥 ∈ On → (∀𝑦𝑥 ((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑦 ∈ (cf‘𝐴)) → (𝐺𝑦) ∈ 𝐴) → ((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) → (𝐺𝑥) ∈ 𝐴)))
1779, 176tfis2 7563 . . . . . . . . . 10 (𝑥 ∈ On → ((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) → (𝐺𝑥) ∈ 𝐴))
1784, 177mpcom 38 . . . . . . . . 9 ((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On ∧ 𝑥 ∈ (cf‘𝐴)) → (𝐺𝑥) ∈ 𝐴)
1791783expia 1115 . . . . . . . 8 ((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On) → (𝑥 ∈ (cf‘𝐴) → (𝐺𝑥) ∈ 𝐴))
180179ralrimiv 3179 . . . . . . 7 ((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On) → ∀𝑥 ∈ (cf‘𝐴)(𝐺𝑥) ∈ 𝐴)
1812onssi 7544 . . . . . . . . 9 (cf‘𝐴) ⊆ On
182 fnssres 6463 . . . . . . . . . 10 ((recs(𝐹) Fn On ∧ (cf‘𝐴) ⊆ On) → (recs(𝐹) ↾ (cf‘𝐴)) Fn (cf‘𝐴))
18319fneq1i 6443 . . . . . . . . . 10 (𝐺 Fn (cf‘𝐴) ↔ (recs(𝐹) ↾ (cf‘𝐴)) Fn (cf‘𝐴))
184182, 183sylibr 236 . . . . . . . . 9 ((recs(𝐹) Fn On ∧ (cf‘𝐴) ⊆ On) → 𝐺 Fn (cf‘𝐴))
18524, 181, 184mp2an 690 . . . . . . . 8 𝐺 Fn (cf‘𝐴)
186 ffnfv 6875 . . . . . . . 8 (𝐺:(cf‘𝐴)⟶𝐴 ↔ (𝐺 Fn (cf‘𝐴) ∧ ∀𝑥 ∈ (cf‘𝐴)(𝐺𝑥) ∈ 𝐴))
187185, 186mpbiran 707 . . . . . . 7 (𝐺:(cf‘𝐴)⟶𝐴 ↔ ∀𝑥 ∈ (cf‘𝐴)(𝐺𝑥) ∈ 𝐴)
188180, 187sylibr 236 . . . . . 6 ((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On) → 𝐺:(cf‘𝐴)⟶𝐴)
189188adantlr 713 . . . . 5 (((𝑔:(cf‘𝐴)–1-1𝐴 ∧ ∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝑔𝑤)) ∧ 𝐴 ∈ On) → 𝐺:(cf‘𝐴)⟶𝐴)
190 onss 7497 . . . . . . . 8 (𝐴 ∈ On → 𝐴 ⊆ On)
191190adantl 484 . . . . . . 7 ((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On) → 𝐴 ⊆ On)
1922onordi 6288 . . . . . . . 8 Ord (cf‘𝐴)
193 fvex 6676 . . . . . . . . . . . . . . . . 17 (recs(𝐹)‘𝑦) ∈ V
194193sucid 6263 . . . . . . . . . . . . . . . 16 (recs(𝐹)‘𝑦) ∈ suc (recs(𝐹)‘𝑦)
195 fveq2 6663 . . . . . . . . . . . . . . . . . . 19 (𝑡 = 𝑦 → (recs(𝐹)‘𝑡) = (recs(𝐹)‘𝑦))
196 suceq 6249 . . . . . . . . . . . . . . . . . . 19 ((recs(𝐹)‘𝑡) = (recs(𝐹)‘𝑦) → suc (recs(𝐹)‘𝑡) = suc (recs(𝐹)‘𝑦))
197195, 196syl 17 . . . . . . . . . . . . . . . . . 18 (𝑡 = 𝑦 → suc (recs(𝐹)‘𝑡) = suc (recs(𝐹)‘𝑦))
198197eliuni 4916 . . . . . . . . . . . . . . . . 17 ((𝑦𝑥 ∧ (recs(𝐹)‘𝑦) ∈ suc (recs(𝐹)‘𝑦)) → (recs(𝐹)‘𝑦) ∈ 𝑡𝑥 suc (recs(𝐹)‘𝑡))
199198, 60eleqtrrdi 2922 . . . . . . . . . . . . . . . 16 ((𝑦𝑥 ∧ (recs(𝐹)‘𝑦) ∈ suc (recs(𝐹)‘𝑦)) → (recs(𝐹)‘𝑦) ∈ 𝑦𝑥 suc (recs(𝐹)‘𝑦))
200194, 199mpan2 689 . . . . . . . . . . . . . . 15 (𝑦𝑥 → (recs(𝐹)‘𝑦) ∈ 𝑦𝑥 suc (recs(𝐹)‘𝑦))
201 elun2 4151 . . . . . . . . . . . . . . 15 ((recs(𝐹)‘𝑦) ∈ 𝑦𝑥 suc (recs(𝐹)‘𝑦) → (recs(𝐹)‘𝑦) ∈ ((𝑔𝑥) ∪ 𝑦𝑥 suc (recs(𝐹)‘𝑦)))
202200, 201syl 17 . . . . . . . . . . . . . 14 (𝑦𝑥 → (recs(𝐹)‘𝑦) ∈ ((𝑔𝑥) ∪ 𝑦𝑥 suc (recs(𝐹)‘𝑦)))
203202adantr 483 . . . . . . . . . . . . 13 ((𝑦𝑥𝑥 ∈ (cf‘𝐴)) → (recs(𝐹)‘𝑦) ∈ ((𝑔𝑥) ∪ 𝑦𝑥 suc (recs(𝐹)‘𝑦)))
2043adantl 484 . . . . . . . . . . . . . 14 ((𝑦𝑥𝑥 ∈ (cf‘𝐴)) → 𝑥 ∈ On)
205204, 65syl 17 . . . . . . . . . . . . 13 ((𝑦𝑥𝑥 ∈ (cf‘𝐴)) → (recs(𝐹)‘𝑥) = ((𝑔𝑥) ∪ 𝑦𝑥 suc (recs(𝐹)‘𝑦)))
206203, 205eleqtrrd 2914 . . . . . . . . . . . 12 ((𝑦𝑥𝑥 ∈ (cf‘𝐴)) → (recs(𝐹)‘𝑦) ∈ (recs(𝐹)‘𝑥))
20722adantl 484 . . . . . . . . . . . 12 ((𝑦𝑥𝑥 ∈ (cf‘𝐴)) → (𝐺𝑥) = (recs(𝐹)‘𝑥))
208206, 78, 2073eltr4d 2926 . . . . . . . . . . 11 ((𝑦𝑥𝑥 ∈ (cf‘𝐴)) → (𝐺𝑦) ∈ (𝐺𝑥))
209208expcom 416 . . . . . . . . . 10 (𝑥 ∈ (cf‘𝐴) → (𝑦𝑥 → (𝐺𝑦) ∈ (𝐺𝑥)))
210209ralrimiv 3179 . . . . . . . . 9 (𝑥 ∈ (cf‘𝐴) → ∀𝑦𝑥 (𝐺𝑦) ∈ (𝐺𝑥))
211210rgen 3146 . . . . . . . 8 𝑥 ∈ (cf‘𝐴)∀𝑦𝑥 (𝐺𝑦) ∈ (𝐺𝑥)
212 issmo2 7978 . . . . . . . . 9 (𝐺:(cf‘𝐴)⟶𝐴 → ((𝐴 ⊆ On ∧ Ord (cf‘𝐴) ∧ ∀𝑥 ∈ (cf‘𝐴)∀𝑦𝑥 (𝐺𝑦) ∈ (𝐺𝑥)) → Smo 𝐺))
213212com12 32 . . . . . . . 8 ((𝐴 ⊆ On ∧ Ord (cf‘𝐴) ∧ ∀𝑥 ∈ (cf‘𝐴)∀𝑦𝑥 (𝐺𝑦) ∈ (𝐺𝑥)) → (𝐺:(cf‘𝐴)⟶𝐴 → Smo 𝐺))
214192, 211, 213mp3an23 1446 . . . . . . 7 (𝐴 ⊆ On → (𝐺:(cf‘𝐴)⟶𝐴 → Smo 𝐺))
215191, 188, 214sylc 65 . . . . . 6 ((𝑔:(cf‘𝐴)–1-1𝐴𝐴 ∈ On) → Smo 𝐺)
216215adantlr 713 . . . . 5 (((𝑔:(cf‘𝐴)–1-1𝐴 ∧ ∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝑔𝑤)) ∧ 𝐴 ∈ On) → Smo 𝐺)
217 fveq2 6663 . . . . . . . . . . 11 (𝑥 = 𝑤 → (𝑔𝑥) = (𝑔𝑤))
218 fveq2 6663 . . . . . . . . . . 11 (𝑥 = 𝑤 → (𝐺𝑥) = (𝐺𝑤))
219217, 218sseq12d 3998 . . . . . . . . . 10 (𝑥 = 𝑤 → ((𝑔𝑥) ⊆ (𝐺𝑥) ↔ (𝑔𝑤) ⊆ (𝐺𝑤)))
220 ssun1 4146 . . . . . . . . . . 11 (𝑔𝑥) ⊆ ((𝑔𝑥) ∪ 𝑦𝑥 suc (recs(𝐹)‘𝑦))
221220, 67sseqtrrid 4018 . . . . . . . . . 10 (𝑥 ∈ (cf‘𝐴) → (𝑔𝑥) ⊆ (𝐺𝑥))
222219, 221vtoclga 3572 . . . . . . . . 9 (𝑤 ∈ (cf‘𝐴) → (𝑔𝑤) ⊆ (𝐺𝑤))
223 sstr 3973 . . . . . . . . . 10 ((𝑧 ⊆ (𝑔𝑤) ∧ (𝑔𝑤) ⊆ (𝐺𝑤)) → 𝑧 ⊆ (𝐺𝑤))
224223expcom 416 . . . . . . . . 9 ((𝑔𝑤) ⊆ (𝐺𝑤) → (𝑧 ⊆ (𝑔𝑤) → 𝑧 ⊆ (𝐺𝑤)))
225222, 224syl 17 . . . . . . . 8 (𝑤 ∈ (cf‘𝐴) → (𝑧 ⊆ (𝑔𝑤) → 𝑧 ⊆ (𝐺𝑤)))
226225reximia 3240 . . . . . . 7 (∃𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝑔𝑤) → ∃𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝐺𝑤))
227226ralimi 3158 . . . . . 6 (∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝑔𝑤) → ∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝐺𝑤))
228227ad2antlr 725 . . . . 5 (((𝑔:(cf‘𝐴)–1-1𝐴 ∧ ∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝑔𝑤)) ∧ 𝐴 ∈ On) → ∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝐺𝑤))
229 fnex 6972 . . . . . . 7 ((𝐺 Fn (cf‘𝐴) ∧ (cf‘𝐴) ∈ On) → 𝐺 ∈ V)
230185, 2, 229mp2an 690 . . . . . 6 𝐺 ∈ V
231 feq1 6488 . . . . . . 7 (𝑓 = 𝐺 → (𝑓:(cf‘𝐴)⟶𝐴𝐺:(cf‘𝐴)⟶𝐴))
232 smoeq 7979 . . . . . . 7 (𝑓 = 𝐺 → (Smo 𝑓 ↔ Smo 𝐺))
233 fveq1 6662 . . . . . . . . . 10 (𝑓 = 𝐺 → (𝑓𝑤) = (𝐺𝑤))
234233sseq2d 3997 . . . . . . . . 9 (𝑓 = 𝐺 → (𝑧 ⊆ (𝑓𝑤) ↔ 𝑧 ⊆ (𝐺𝑤)))
235234rexbidv 3295 . . . . . . . 8 (𝑓 = 𝐺 → (∃𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝑓𝑤) ↔ ∃𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝐺𝑤)))
236235ralbidv 3195 . . . . . . 7 (𝑓 = 𝐺 → (∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝑓𝑤) ↔ ∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝐺𝑤)))
237231, 232, 2363anbi123d 1429 . . . . . 6 (𝑓 = 𝐺 → ((𝑓:(cf‘𝐴)⟶𝐴 ∧ Smo 𝑓 ∧ ∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝑓𝑤)) ↔ (𝐺:(cf‘𝐴)⟶𝐴 ∧ Smo 𝐺 ∧ ∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝐺𝑤))))
238230, 237spcev 3605 . . . . 5 ((𝐺:(cf‘𝐴)⟶𝐴 ∧ Smo 𝐺 ∧ ∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝐺𝑤)) → ∃𝑓(𝑓:(cf‘𝐴)⟶𝐴 ∧ Smo 𝑓 ∧ ∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝑓𝑤)))
239189, 216, 228, 238syl3anc 1365 . . . 4 (((𝑔:(cf‘𝐴)–1-1𝐴 ∧ ∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝑔𝑤)) ∧ 𝐴 ∈ On) → ∃𝑓(𝑓:(cf‘𝐴)⟶𝐴 ∧ Smo 𝑓 ∧ ∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝑓𝑤)))
240239expcom 416 . . 3 (𝐴 ∈ On → ((𝑔:(cf‘𝐴)–1-1𝐴 ∧ ∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝑔𝑤)) → ∃𝑓(𝑓:(cf‘𝐴)⟶𝐴 ∧ Smo 𝑓 ∧ ∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝑓𝑤))))
241240exlimdv 1927 . 2 (𝐴 ∈ On → (∃𝑔(𝑔:(cf‘𝐴)–1-1𝐴 ∧ ∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝑔𝑤)) → ∃𝑓(𝑓:(cf‘𝐴)⟶𝐴 ∧ Smo 𝑓 ∧ ∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝑓𝑤))))
2421, 241mpd 15 1 (𝐴 ∈ On → ∃𝑓(𝑓:(cf‘𝐴)⟶𝐴 ∧ Smo 𝑓 ∧ ∀𝑧𝐴𝑤 ∈ (cf‘𝐴)𝑧 ⊆ (𝑓𝑤)))
 Colors of variables: wff setvar class Syntax hints:  ¬ wn 3   → wi 4   ↔ wb 208   ∧ wa 398   ∨ wo 843   ∧ w3a 1081   = wceq 1530  ∃wex 1773   ∈ wcel 2107  ∀wral 3136  ∃wrex 3137  Vcvv 3493   ∪ cun 3932   ⊆ wss 3934  ∪ ciun 4910   ↦ cmpt 5137  dom cdm 5548   ↾ cres 5550  Ord word 6183  Oncon0 6184  suc csuc 6186  Fun wfun 6342   Fn wfn 6343  ⟶wf 6344  –1-1→wf1 6345  ‘cfv 6348  Smo wsmo 7974  recscrecs 7999  cfccf 9358 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1789  ax-4 1803  ax-5 1904  ax-6 1963  ax-7 2008  ax-8 2109  ax-9 2117  ax-10 2138  ax-11 2153  ax-12 2169  ax-ext 2791  ax-rep 5181  ax-sep 5194  ax-nul 5201  ax-pow 5257  ax-pr 5320  ax-un 7453 This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3or 1082  df-3an 1083  df-tru 1533  df-ex 1774  df-nf 1778  df-sb 2063  df-mo 2616  df-eu 2648  df-clab 2798  df-cleq 2812  df-clel 2891  df-nfc 2961  df-ne 3015  df-ral 3141  df-rex 3142  df-reu 3143  df-rmo 3144  df-rab 3145  df-v 3495  df-sbc 3771  df-csb 3882  df-dif 3937  df-un 3939  df-in 3941  df-ss 3950  df-pss 3952  df-nul 4290  df-if 4466  df-pw 4539  df-sn 4560  df-pr 4562  df-tp 4564  df-op 4566  df-uni 4831  df-int 4868  df-iun 4912  df-br 5058  df-opab 5120  df-mpt 5138  df-tr 5164  df-id 5453  df-eprel 5458  df-po 5467  df-so 5468  df-fr 5507  df-se 5508  df-we 5509  df-xp 5554  df-rel 5555  df-cnv 5556  df-co 5557  df-dm 5558  df-rn 5559  df-res 5560  df-ima 5561  df-pred 6141  df-ord 6187  df-on 6188  df-suc 6190  df-iota 6307  df-fun 6350  df-fn 6351  df-f 6352  df-f1 6353  df-fo 6354  df-f1o 6355  df-fv 6356  df-isom 6357  df-riota 7106  df-ov 7151  df-oprab 7152  df-mpo 7153  df-1st 7681  df-2nd 7682  df-wrecs 7939  df-smo 7975  df-recs 8000  df-er 8281  df-map 8400  df-en 8502  df-dom 8503  df-sdom 8504  df-card 9360  df-cf 9362  df-acn 9363 This theorem is referenced by:  cfsmo  9685
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