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Theorem dfac12lem1 8909
Description: Lemma for dfac12 8915. (Contributed by Mario Carneiro, 29-May-2015.)
Hypotheses
Ref Expression
dfac12.1 (𝜑𝐴 ∈ On)
dfac12.3 (𝜑𝐹:𝒫 (har‘(𝑅1𝐴))–1-1→On)
dfac12.4 𝐺 = recs((𝑥 ∈ V ↦ (𝑦 ∈ (𝑅1‘dom 𝑥) ↦ if(dom 𝑥 = dom 𝑥, ((suc ran ran 𝑥 ·𝑜 (rank‘𝑦)) +𝑜 ((𝑥‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran (𝑥 dom 𝑥)) ∘ (𝑥 dom 𝑥)) “ 𝑦))))))
dfac12.5 (𝜑𝐶 ∈ On)
dfac12.h 𝐻 = (OrdIso( E , ran (𝐺 𝐶)) ∘ (𝐺 𝐶))
Assertion
Ref Expression
dfac12lem1 (𝜑 → (𝐺𝐶) = (𝑦 ∈ (𝑅1𝐶) ↦ if(𝐶 = 𝐶, ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 ((𝐺‘suc (rank‘𝑦))‘𝑦)), (𝐹‘(𝐻𝑦)))))
Distinct variable groups:   𝑦,𝐴   𝑥,𝑦,𝐶   𝑥,𝐺,𝑦   𝜑,𝑦   𝑥,𝐹,𝑦   𝑦,𝐻
Allowed substitution hints:   𝜑(𝑥)   𝐴(𝑥)   𝐻(𝑥)

Proof of Theorem dfac12lem1
StepHypRef Expression
1 dfac12.5 . . 3 (𝜑𝐶 ∈ On)
2 dfac12.4 . . . 4 𝐺 = recs((𝑥 ∈ V ↦ (𝑦 ∈ (𝑅1‘dom 𝑥) ↦ if(dom 𝑥 = dom 𝑥, ((suc ran ran 𝑥 ·𝑜 (rank‘𝑦)) +𝑜 ((𝑥‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran (𝑥 dom 𝑥)) ∘ (𝑥 dom 𝑥)) “ 𝑦))))))
32tfr2 7439 . . 3 (𝐶 ∈ On → (𝐺𝐶) = ((𝑥 ∈ V ↦ (𝑦 ∈ (𝑅1‘dom 𝑥) ↦ if(dom 𝑥 = dom 𝑥, ((suc ran ran 𝑥 ·𝑜 (rank‘𝑦)) +𝑜 ((𝑥‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran (𝑥 dom 𝑥)) ∘ (𝑥 dom 𝑥)) “ 𝑦)))))‘(𝐺𝐶)))
41, 3syl 17 . 2 (𝜑 → (𝐺𝐶) = ((𝑥 ∈ V ↦ (𝑦 ∈ (𝑅1‘dom 𝑥) ↦ if(dom 𝑥 = dom 𝑥, ((suc ran ran 𝑥 ·𝑜 (rank‘𝑦)) +𝑜 ((𝑥‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran (𝑥 dom 𝑥)) ∘ (𝑥 dom 𝑥)) “ 𝑦)))))‘(𝐺𝐶)))
52tfr1 7438 . . . . 5 𝐺 Fn On
6 fnfun 5946 . . . . 5 (𝐺 Fn On → Fun 𝐺)
75, 6ax-mp 5 . . . 4 Fun 𝐺
8 resfunexg 6433 . . . 4 ((Fun 𝐺𝐶 ∈ On) → (𝐺𝐶) ∈ V)
97, 1, 8sylancr 694 . . 3 (𝜑 → (𝐺𝐶) ∈ V)
10 dmeq 5284 . . . . . 6 (𝑥 = (𝐺𝐶) → dom 𝑥 = dom (𝐺𝐶))
1110fveq2d 6152 . . . . 5 (𝑥 = (𝐺𝐶) → (𝑅1‘dom 𝑥) = (𝑅1‘dom (𝐺𝐶)))
1210unieqd 4412 . . . . . . 7 (𝑥 = (𝐺𝐶) → dom 𝑥 = dom (𝐺𝐶))
1310, 12eqeq12d 2636 . . . . . 6 (𝑥 = (𝐺𝐶) → (dom 𝑥 = dom 𝑥 ↔ dom (𝐺𝐶) = dom (𝐺𝐶)))
14 rneq 5311 . . . . . . . . . . . . 13 (𝑥 = (𝐺𝐶) → ran 𝑥 = ran (𝐺𝐶))
15 df-ima 5087 . . . . . . . . . . . . 13 (𝐺𝐶) = ran (𝐺𝐶)
1614, 15syl6eqr 2673 . . . . . . . . . . . 12 (𝑥 = (𝐺𝐶) → ran 𝑥 = (𝐺𝐶))
1716unieqd 4412 . . . . . . . . . . 11 (𝑥 = (𝐺𝐶) → ran 𝑥 = (𝐺𝐶))
1817rneqd 5313 . . . . . . . . . 10 (𝑥 = (𝐺𝐶) → ran ran 𝑥 = ran (𝐺𝐶))
1918unieqd 4412 . . . . . . . . 9 (𝑥 = (𝐺𝐶) → ran ran 𝑥 = ran (𝐺𝐶))
20 suceq 5749 . . . . . . . . 9 ( ran ran 𝑥 = ran (𝐺𝐶) → suc ran ran 𝑥 = suc ran (𝐺𝐶))
2119, 20syl 17 . . . . . . . 8 (𝑥 = (𝐺𝐶) → suc ran ran 𝑥 = suc ran (𝐺𝐶))
2221oveq1d 6619 . . . . . . 7 (𝑥 = (𝐺𝐶) → (suc ran ran 𝑥 ·𝑜 (rank‘𝑦)) = (suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)))
23 fveq1 6147 . . . . . . . 8 (𝑥 = (𝐺𝐶) → (𝑥‘suc (rank‘𝑦)) = ((𝐺𝐶)‘suc (rank‘𝑦)))
2423fveq1d 6150 . . . . . . 7 (𝑥 = (𝐺𝐶) → ((𝑥‘suc (rank‘𝑦))‘𝑦) = (((𝐺𝐶)‘suc (rank‘𝑦))‘𝑦))
2522, 24oveq12d 6622 . . . . . 6 (𝑥 = (𝐺𝐶) → ((suc ran ran 𝑥 ·𝑜 (rank‘𝑦)) +𝑜 ((𝑥‘suc (rank‘𝑦))‘𝑦)) = ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 (((𝐺𝐶)‘suc (rank‘𝑦))‘𝑦)))
26 id 22 . . . . . . . . . . . . 13 (𝑥 = (𝐺𝐶) → 𝑥 = (𝐺𝐶))
2726, 12fveq12d 6154 . . . . . . . . . . . 12 (𝑥 = (𝐺𝐶) → (𝑥 dom 𝑥) = ((𝐺𝐶)‘ dom (𝐺𝐶)))
2827rneqd 5313 . . . . . . . . . . 11 (𝑥 = (𝐺𝐶) → ran (𝑥 dom 𝑥) = ran ((𝐺𝐶)‘ dom (𝐺𝐶)))
29 oieq2 8362 . . . . . . . . . . 11 (ran (𝑥 dom 𝑥) = ran ((𝐺𝐶)‘ dom (𝐺𝐶)) → OrdIso( E , ran (𝑥 dom 𝑥)) = OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))))
3028, 29syl 17 . . . . . . . . . 10 (𝑥 = (𝐺𝐶) → OrdIso( E , ran (𝑥 dom 𝑥)) = OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))))
3130cnveqd 5258 . . . . . . . . 9 (𝑥 = (𝐺𝐶) → OrdIso( E , ran (𝑥 dom 𝑥)) = OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))))
3231, 27coeq12d 5246 . . . . . . . 8 (𝑥 = (𝐺𝐶) → (OrdIso( E , ran (𝑥 dom 𝑥)) ∘ (𝑥 dom 𝑥)) = (OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))))
3332imaeq1d 5424 . . . . . . 7 (𝑥 = (𝐺𝐶) → ((OrdIso( E , ran (𝑥 dom 𝑥)) ∘ (𝑥 dom 𝑥)) “ 𝑦) = ((OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) “ 𝑦))
3433fveq2d 6152 . . . . . 6 (𝑥 = (𝐺𝐶) → (𝐹‘((OrdIso( E , ran (𝑥 dom 𝑥)) ∘ (𝑥 dom 𝑥)) “ 𝑦)) = (𝐹‘((OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) “ 𝑦)))
3513, 25, 34ifbieq12d 4085 . . . . 5 (𝑥 = (𝐺𝐶) → if(dom 𝑥 = dom 𝑥, ((suc ran ran 𝑥 ·𝑜 (rank‘𝑦)) +𝑜 ((𝑥‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran (𝑥 dom 𝑥)) ∘ (𝑥 dom 𝑥)) “ 𝑦))) = if(dom (𝐺𝐶) = dom (𝐺𝐶), ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 (((𝐺𝐶)‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) “ 𝑦))))
3611, 35mpteq12dv 4693 . . . 4 (𝑥 = (𝐺𝐶) → (𝑦 ∈ (𝑅1‘dom 𝑥) ↦ if(dom 𝑥 = dom 𝑥, ((suc ran ran 𝑥 ·𝑜 (rank‘𝑦)) +𝑜 ((𝑥‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran (𝑥 dom 𝑥)) ∘ (𝑥 dom 𝑥)) “ 𝑦)))) = (𝑦 ∈ (𝑅1‘dom (𝐺𝐶)) ↦ if(dom (𝐺𝐶) = dom (𝐺𝐶), ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 (((𝐺𝐶)‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) “ 𝑦)))))
37 eqid 2621 . . . 4 (𝑥 ∈ V ↦ (𝑦 ∈ (𝑅1‘dom 𝑥) ↦ if(dom 𝑥 = dom 𝑥, ((suc ran ran 𝑥 ·𝑜 (rank‘𝑦)) +𝑜 ((𝑥‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran (𝑥 dom 𝑥)) ∘ (𝑥 dom 𝑥)) “ 𝑦))))) = (𝑥 ∈ V ↦ (𝑦 ∈ (𝑅1‘dom 𝑥) ↦ if(dom 𝑥 = dom 𝑥, ((suc ran ran 𝑥 ·𝑜 (rank‘𝑦)) +𝑜 ((𝑥‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran (𝑥 dom 𝑥)) ∘ (𝑥 dom 𝑥)) “ 𝑦)))))
38 fvex 6158 . . . . 5 (𝑅1‘dom (𝐺𝐶)) ∈ V
3938mptex 6440 . . . 4 (𝑦 ∈ (𝑅1‘dom (𝐺𝐶)) ↦ if(dom (𝐺𝐶) = dom (𝐺𝐶), ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 (((𝐺𝐶)‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) “ 𝑦)))) ∈ V
4036, 37, 39fvmpt 6239 . . 3 ((𝐺𝐶) ∈ V → ((𝑥 ∈ V ↦ (𝑦 ∈ (𝑅1‘dom 𝑥) ↦ if(dom 𝑥 = dom 𝑥, ((suc ran ran 𝑥 ·𝑜 (rank‘𝑦)) +𝑜 ((𝑥‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran (𝑥 dom 𝑥)) ∘ (𝑥 dom 𝑥)) “ 𝑦)))))‘(𝐺𝐶)) = (𝑦 ∈ (𝑅1‘dom (𝐺𝐶)) ↦ if(dom (𝐺𝐶) = dom (𝐺𝐶), ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 (((𝐺𝐶)‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) “ 𝑦)))))
419, 40syl 17 . 2 (𝜑 → ((𝑥 ∈ V ↦ (𝑦 ∈ (𝑅1‘dom 𝑥) ↦ if(dom 𝑥 = dom 𝑥, ((suc ran ran 𝑥 ·𝑜 (rank‘𝑦)) +𝑜 ((𝑥‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran (𝑥 dom 𝑥)) ∘ (𝑥 dom 𝑥)) “ 𝑦)))))‘(𝐺𝐶)) = (𝑦 ∈ (𝑅1‘dom (𝐺𝐶)) ↦ if(dom (𝐺𝐶) = dom (𝐺𝐶), ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 (((𝐺𝐶)‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) “ 𝑦)))))
42 onss 6937 . . . . . . . 8 (𝐶 ∈ On → 𝐶 ⊆ On)
431, 42syl 17 . . . . . . 7 (𝜑𝐶 ⊆ On)
44 fnssres 5962 . . . . . . 7 ((𝐺 Fn On ∧ 𝐶 ⊆ On) → (𝐺𝐶) Fn 𝐶)
455, 43, 44sylancr 694 . . . . . 6 (𝜑 → (𝐺𝐶) Fn 𝐶)
46 fndm 5948 . . . . . 6 ((𝐺𝐶) Fn 𝐶 → dom (𝐺𝐶) = 𝐶)
4745, 46syl 17 . . . . 5 (𝜑 → dom (𝐺𝐶) = 𝐶)
4847fveq2d 6152 . . . 4 (𝜑 → (𝑅1‘dom (𝐺𝐶)) = (𝑅1𝐶))
4948mpteq1d 4698 . . 3 (𝜑 → (𝑦 ∈ (𝑅1‘dom (𝐺𝐶)) ↦ if(dom (𝐺𝐶) = dom (𝐺𝐶), ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 (((𝐺𝐶)‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) “ 𝑦)))) = (𝑦 ∈ (𝑅1𝐶) ↦ if(dom (𝐺𝐶) = dom (𝐺𝐶), ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 (((𝐺𝐶)‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) “ 𝑦)))))
5047adantr 481 . . . . . . 7 ((𝜑𝑦 ∈ (𝑅1𝐶)) → dom (𝐺𝐶) = 𝐶)
5150unieqd 4412 . . . . . . 7 ((𝜑𝑦 ∈ (𝑅1𝐶)) → dom (𝐺𝐶) = 𝐶)
5250, 51eqeq12d 2636 . . . . . 6 ((𝜑𝑦 ∈ (𝑅1𝐶)) → (dom (𝐺𝐶) = dom (𝐺𝐶) ↔ 𝐶 = 𝐶))
5352ifbid 4080 . . . . 5 ((𝜑𝑦 ∈ (𝑅1𝐶)) → if(dom (𝐺𝐶) = dom (𝐺𝐶), ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 (((𝐺𝐶)‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) “ 𝑦))) = if(𝐶 = 𝐶, ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 (((𝐺𝐶)‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) “ 𝑦))))
54 rankr1ai 8605 . . . . . . . . . . . 12 (𝑦 ∈ (𝑅1𝐶) → (rank‘𝑦) ∈ 𝐶)
5554ad2antlr 762 . . . . . . . . . . 11 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ 𝐶 = 𝐶) → (rank‘𝑦) ∈ 𝐶)
56 simpr 477 . . . . . . . . . . 11 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ 𝐶 = 𝐶) → 𝐶 = 𝐶)
5755, 56eleqtrd 2700 . . . . . . . . . 10 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ 𝐶 = 𝐶) → (rank‘𝑦) ∈ 𝐶)
58 eloni 5692 . . . . . . . . . . . 12 (𝐶 ∈ On → Ord 𝐶)
59 ordsucuniel 6971 . . . . . . . . . . . 12 (Ord 𝐶 → ((rank‘𝑦) ∈ 𝐶 ↔ suc (rank‘𝑦) ∈ 𝐶))
601, 58, 593syl 18 . . . . . . . . . . 11 (𝜑 → ((rank‘𝑦) ∈ 𝐶 ↔ suc (rank‘𝑦) ∈ 𝐶))
6160ad2antrr 761 . . . . . . . . . 10 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ 𝐶 = 𝐶) → ((rank‘𝑦) ∈ 𝐶 ↔ suc (rank‘𝑦) ∈ 𝐶))
6257, 61mpbid 222 . . . . . . . . 9 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ 𝐶 = 𝐶) → suc (rank‘𝑦) ∈ 𝐶)
63 fvres 6164 . . . . . . . . 9 (suc (rank‘𝑦) ∈ 𝐶 → ((𝐺𝐶)‘suc (rank‘𝑦)) = (𝐺‘suc (rank‘𝑦)))
6462, 63syl 17 . . . . . . . 8 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ 𝐶 = 𝐶) → ((𝐺𝐶)‘suc (rank‘𝑦)) = (𝐺‘suc (rank‘𝑦)))
6564fveq1d 6150 . . . . . . 7 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ 𝐶 = 𝐶) → (((𝐺𝐶)‘suc (rank‘𝑦))‘𝑦) = ((𝐺‘suc (rank‘𝑦))‘𝑦))
6665oveq2d 6620 . . . . . 6 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ 𝐶 = 𝐶) → ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 (((𝐺𝐶)‘suc (rank‘𝑦))‘𝑦)) = ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 ((𝐺‘suc (rank‘𝑦))‘𝑦)))
6766ifeq1da 4088 . . . . 5 ((𝜑𝑦 ∈ (𝑅1𝐶)) → if(𝐶 = 𝐶, ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 (((𝐺𝐶)‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) “ 𝑦))) = if(𝐶 = 𝐶, ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 ((𝐺‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) “ 𝑦))))
6851adantr 481 . . . . . . . . . . . . . . 15 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ ¬ 𝐶 = 𝐶) → dom (𝐺𝐶) = 𝐶)
6968fveq2d 6152 . . . . . . . . . . . . . 14 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ ¬ 𝐶 = 𝐶) → ((𝐺𝐶)‘ dom (𝐺𝐶)) = ((𝐺𝐶)‘ 𝐶))
701ad2antrr 761 . . . . . . . . . . . . . . . . 17 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ ¬ 𝐶 = 𝐶) → 𝐶 ∈ On)
71 uniexg 6908 . . . . . . . . . . . . . . . . 17 (𝐶 ∈ On → 𝐶 ∈ V)
72 sucidg 5762 . . . . . . . . . . . . . . . . 17 ( 𝐶 ∈ V → 𝐶 ∈ suc 𝐶)
7370, 71, 723syl 18 . . . . . . . . . . . . . . . 16 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ ¬ 𝐶 = 𝐶) → 𝐶 ∈ suc 𝐶)
741adantr 481 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑦 ∈ (𝑅1𝐶)) → 𝐶 ∈ On)
75 orduniorsuc 6977 . . . . . . . . . . . . . . . . . 18 (Ord 𝐶 → (𝐶 = 𝐶𝐶 = suc 𝐶))
7674, 58, 753syl 18 . . . . . . . . . . . . . . . . 17 ((𝜑𝑦 ∈ (𝑅1𝐶)) → (𝐶 = 𝐶𝐶 = suc 𝐶))
7776orcanai 951 . . . . . . . . . . . . . . . 16 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ ¬ 𝐶 = 𝐶) → 𝐶 = suc 𝐶)
7873, 77eleqtrrd 2701 . . . . . . . . . . . . . . 15 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ ¬ 𝐶 = 𝐶) → 𝐶𝐶)
79 fvres 6164 . . . . . . . . . . . . . . 15 ( 𝐶𝐶 → ((𝐺𝐶)‘ 𝐶) = (𝐺 𝐶))
8078, 79syl 17 . . . . . . . . . . . . . 14 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ ¬ 𝐶 = 𝐶) → ((𝐺𝐶)‘ 𝐶) = (𝐺 𝐶))
8169, 80eqtrd 2655 . . . . . . . . . . . . 13 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ ¬ 𝐶 = 𝐶) → ((𝐺𝐶)‘ dom (𝐺𝐶)) = (𝐺 𝐶))
8281rneqd 5313 . . . . . . . . . . . 12 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ ¬ 𝐶 = 𝐶) → ran ((𝐺𝐶)‘ dom (𝐺𝐶)) = ran (𝐺 𝐶))
83 oieq2 8362 . . . . . . . . . . . 12 (ran ((𝐺𝐶)‘ dom (𝐺𝐶)) = ran (𝐺 𝐶) → OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) = OrdIso( E , ran (𝐺 𝐶)))
8482, 83syl 17 . . . . . . . . . . 11 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ ¬ 𝐶 = 𝐶) → OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) = OrdIso( E , ran (𝐺 𝐶)))
8584cnveqd 5258 . . . . . . . . . 10 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ ¬ 𝐶 = 𝐶) → OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) = OrdIso( E , ran (𝐺 𝐶)))
8685, 81coeq12d 5246 . . . . . . . . 9 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ ¬ 𝐶 = 𝐶) → (OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) = (OrdIso( E , ran (𝐺 𝐶)) ∘ (𝐺 𝐶)))
87 dfac12.h . . . . . . . . 9 𝐻 = (OrdIso( E , ran (𝐺 𝐶)) ∘ (𝐺 𝐶))
8886, 87syl6eqr 2673 . . . . . . . 8 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ ¬ 𝐶 = 𝐶) → (OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) = 𝐻)
8988imaeq1d 5424 . . . . . . 7 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ ¬ 𝐶 = 𝐶) → ((OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) “ 𝑦) = (𝐻𝑦))
9089fveq2d 6152 . . . . . 6 (((𝜑𝑦 ∈ (𝑅1𝐶)) ∧ ¬ 𝐶 = 𝐶) → (𝐹‘((OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) “ 𝑦)) = (𝐹‘(𝐻𝑦)))
9190ifeq2da 4089 . . . . 5 ((𝜑𝑦 ∈ (𝑅1𝐶)) → if(𝐶 = 𝐶, ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 ((𝐺‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) “ 𝑦))) = if(𝐶 = 𝐶, ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 ((𝐺‘suc (rank‘𝑦))‘𝑦)), (𝐹‘(𝐻𝑦))))
9253, 67, 913eqtrd 2659 . . . 4 ((𝜑𝑦 ∈ (𝑅1𝐶)) → if(dom (𝐺𝐶) = dom (𝐺𝐶), ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 (((𝐺𝐶)‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) “ 𝑦))) = if(𝐶 = 𝐶, ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 ((𝐺‘suc (rank‘𝑦))‘𝑦)), (𝐹‘(𝐻𝑦))))
9392mpteq2dva 4704 . . 3 (𝜑 → (𝑦 ∈ (𝑅1𝐶) ↦ if(dom (𝐺𝐶) = dom (𝐺𝐶), ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 (((𝐺𝐶)‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) “ 𝑦)))) = (𝑦 ∈ (𝑅1𝐶) ↦ if(𝐶 = 𝐶, ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 ((𝐺‘suc (rank‘𝑦))‘𝑦)), (𝐹‘(𝐻𝑦)))))
9449, 93eqtrd 2655 . 2 (𝜑 → (𝑦 ∈ (𝑅1‘dom (𝐺𝐶)) ↦ if(dom (𝐺𝐶) = dom (𝐺𝐶), ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 (((𝐺𝐶)‘suc (rank‘𝑦))‘𝑦)), (𝐹‘((OrdIso( E , ran ((𝐺𝐶)‘ dom (𝐺𝐶))) ∘ ((𝐺𝐶)‘ dom (𝐺𝐶))) “ 𝑦)))) = (𝑦 ∈ (𝑅1𝐶) ↦ if(𝐶 = 𝐶, ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 ((𝐺‘suc (rank‘𝑦))‘𝑦)), (𝐹‘(𝐻𝑦)))))
954, 41, 943eqtrd 2659 1 (𝜑 → (𝐺𝐶) = (𝑦 ∈ (𝑅1𝐶) ↦ if(𝐶 = 𝐶, ((suc ran (𝐺𝐶) ·𝑜 (rank‘𝑦)) +𝑜 ((𝐺‘suc (rank‘𝑦))‘𝑦)), (𝐹‘(𝐻𝑦)))))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 196  wo 383  wa 384   = wceq 1480  wcel 1987  Vcvv 3186  wss 3555  ifcif 4058  𝒫 cpw 4130   cuni 4402  cmpt 4673   E cep 4983  ccnv 5073  dom cdm 5074  ran crn 5075  cres 5076  cima 5077  ccom 5078  Ord word 5681  Oncon0 5682  suc csuc 5684  Fun wfun 5841   Fn wfn 5842  1-1wf1 5844  cfv 5847  (class class class)co 6604  recscrecs 7412   +𝑜 coa 7502   ·𝑜 comu 7503  OrdIsocoi 8358  harchar 8405  𝑅1cr1 8569  rankcrnk 8570
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1719  ax-4 1734  ax-5 1836  ax-6 1885  ax-7 1932  ax-8 1989  ax-9 1996  ax-10 2016  ax-11 2031  ax-12 2044  ax-13 2245  ax-ext 2601  ax-rep 4731  ax-sep 4741  ax-nul 4749  ax-pow 4803  ax-pr 4867  ax-un 6902
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1037  df-3an 1038  df-tru 1483  df-ex 1702  df-nf 1707  df-sb 1878  df-eu 2473  df-mo 2474  df-clab 2608  df-cleq 2614  df-clel 2617  df-nfc 2750  df-ne 2791  df-ral 2912  df-rex 2913  df-reu 2914  df-rab 2916  df-v 3188  df-sbc 3418  df-csb 3515  df-dif 3558  df-un 3560  df-in 3562  df-ss 3569  df-pss 3571  df-nul 3892  df-if 4059  df-pw 4132  df-sn 4149  df-pr 4151  df-tp 4153  df-op 4155  df-uni 4403  df-int 4441  df-iun 4487  df-br 4614  df-opab 4674  df-mpt 4675  df-tr 4713  df-eprel 4985  df-id 4989  df-po 4995  df-so 4996  df-fr 5033  df-se 5034  df-we 5035  df-xp 5080  df-rel 5081  df-cnv 5082  df-co 5083  df-dm 5084  df-rn 5085  df-res 5086  df-ima 5087  df-pred 5639  df-ord 5685  df-on 5686  df-lim 5687  df-suc 5688  df-iota 5810  df-fun 5849  df-fn 5850  df-f 5851  df-f1 5852  df-fo 5853  df-f1o 5854  df-fv 5855  df-riota 6565  df-ov 6607  df-om 7013  df-wrecs 7352  df-recs 7413  df-rdg 7451  df-oi 8359  df-r1 8571  df-rank 8572
This theorem is referenced by:  dfac12lem2  8910
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