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Theorem cnfcomlem 9457
Description: Lemma for cnfcom 9458. (Contributed by Mario Carneiro, 30-May-2015.) (Revised by AV, 3-Jul-2019.)
Hypotheses
Ref Expression
cnfcom.s 𝑆 = dom (ω CNF 𝐴)
cnfcom.a (𝜑𝐴 ∈ On)
cnfcom.b (𝜑𝐵 ∈ (ω ↑o 𝐴))
cnfcom.f 𝐹 = ((ω CNF 𝐴)‘𝐵)
cnfcom.g 𝐺 = OrdIso( E , (𝐹 supp ∅))
cnfcom.h 𝐻 = seqω((𝑘 ∈ V, 𝑧 ∈ V ↦ (𝑀 +o 𝑧)), ∅)
cnfcom.t 𝑇 = seqω((𝑘 ∈ V, 𝑓 ∈ V ↦ 𝐾), ∅)
cnfcom.m 𝑀 = ((ω ↑o (𝐺𝑘)) ·o (𝐹‘(𝐺𝑘)))
cnfcom.k 𝐾 = ((𝑥𝑀 ↦ (dom 𝑓 +o 𝑥)) ∪ (𝑥 ∈ dom 𝑓 ↦ (𝑀 +o 𝑥)))
cnfcom.1 (𝜑𝐼 ∈ dom 𝐺)
cnfcom.2 (𝜑𝑂 ∈ (ω ↑o (𝐺𝐼)))
cnfcom.3 (𝜑 → (𝑇𝐼):(𝐻𝐼)–1-1-onto𝑂)
Assertion
Ref Expression
cnfcomlem (𝜑 → (𝑇‘suc 𝐼):(𝐻‘suc 𝐼)–1-1-onto→((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))))
Distinct variable groups:   𝑥,𝑘,𝑧,𝐴   𝑘,𝐼,𝑥,𝑧   𝑥,𝑀   𝑓,𝑘,𝑥,𝑧,𝐹   𝑧,𝑇   𝑓,𝐺,𝑘,𝑥,𝑧   𝑓,𝐻,𝑥   𝑆,𝑘,𝑧
Allowed substitution hints:   𝜑(𝑥,𝑧,𝑓,𝑘)   𝐴(𝑓)   𝐵(𝑥,𝑧,𝑓,𝑘)   𝑆(𝑥,𝑓)   𝑇(𝑥,𝑓,𝑘)   𝐻(𝑧,𝑘)   𝐼(𝑓)   𝐾(𝑥,𝑧,𝑓,𝑘)   𝑀(𝑧,𝑓,𝑘)   𝑂(𝑥,𝑧,𝑓,𝑘)

Proof of Theorem cnfcomlem
Dummy variables 𝑢 𝑣 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 omelon 9404 . . . . . . 7 ω ∈ On
2 cnfcom.a . . . . . . . 8 (𝜑𝐴 ∈ On)
3 suppssdm 7993 . . . . . . . . . 10 (𝐹 supp ∅) ⊆ dom 𝐹
4 cnfcom.f . . . . . . . . . . . . 13 𝐹 = ((ω CNF 𝐴)‘𝐵)
5 cnfcom.s . . . . . . . . . . . . . . . 16 𝑆 = dom (ω CNF 𝐴)
61a1i 11 . . . . . . . . . . . . . . . 16 (𝜑 → ω ∈ On)
75, 6, 2cantnff1o 9454 . . . . . . . . . . . . . . 15 (𝜑 → (ω CNF 𝐴):𝑆1-1-onto→(ω ↑o 𝐴))
8 f1ocnv 6728 . . . . . . . . . . . . . . 15 ((ω CNF 𝐴):𝑆1-1-onto→(ω ↑o 𝐴) → (ω CNF 𝐴):(ω ↑o 𝐴)–1-1-onto𝑆)
9 f1of 6716 . . . . . . . . . . . . . . 15 ((ω CNF 𝐴):(ω ↑o 𝐴)–1-1-onto𝑆(ω CNF 𝐴):(ω ↑o 𝐴)⟶𝑆)
107, 8, 93syl 18 . . . . . . . . . . . . . 14 (𝜑(ω CNF 𝐴):(ω ↑o 𝐴)⟶𝑆)
11 cnfcom.b . . . . . . . . . . . . . 14 (𝜑𝐵 ∈ (ω ↑o 𝐴))
1210, 11ffvelrnd 6962 . . . . . . . . . . . . 13 (𝜑 → ((ω CNF 𝐴)‘𝐵) ∈ 𝑆)
134, 12eqeltrid 2843 . . . . . . . . . . . 12 (𝜑𝐹𝑆)
145, 6, 2cantnfs 9424 . . . . . . . . . . . 12 (𝜑 → (𝐹𝑆 ↔ (𝐹:𝐴⟶ω ∧ 𝐹 finSupp ∅)))
1513, 14mpbid 231 . . . . . . . . . . 11 (𝜑 → (𝐹:𝐴⟶ω ∧ 𝐹 finSupp ∅))
1615simpld 495 . . . . . . . . . 10 (𝜑𝐹:𝐴⟶ω)
173, 16fssdm 6620 . . . . . . . . 9 (𝜑 → (𝐹 supp ∅) ⊆ 𝐴)
18 cnfcom.1 . . . . . . . . . 10 (𝜑𝐼 ∈ dom 𝐺)
19 cnfcom.g . . . . . . . . . . . 12 𝐺 = OrdIso( E , (𝐹 supp ∅))
2019oif 9289 . . . . . . . . . . 11 𝐺:dom 𝐺⟶(𝐹 supp ∅)
2120ffvelrni 6960 . . . . . . . . . 10 (𝐼 ∈ dom 𝐺 → (𝐺𝐼) ∈ (𝐹 supp ∅))
2218, 21syl 17 . . . . . . . . 9 (𝜑 → (𝐺𝐼) ∈ (𝐹 supp ∅))
2317, 22sseldd 3922 . . . . . . . 8 (𝜑 → (𝐺𝐼) ∈ 𝐴)
24 onelon 6291 . . . . . . . 8 ((𝐴 ∈ On ∧ (𝐺𝐼) ∈ 𝐴) → (𝐺𝐼) ∈ On)
252, 23, 24syl2anc 584 . . . . . . 7 (𝜑 → (𝐺𝐼) ∈ On)
26 oecl 8367 . . . . . . 7 ((ω ∈ On ∧ (𝐺𝐼) ∈ On) → (ω ↑o (𝐺𝐼)) ∈ On)
271, 25, 26sylancr 587 . . . . . 6 (𝜑 → (ω ↑o (𝐺𝐼)) ∈ On)
2816, 23ffvelrnd 6962 . . . . . . 7 (𝜑 → (𝐹‘(𝐺𝐼)) ∈ ω)
29 nnon 7718 . . . . . . 7 ((𝐹‘(𝐺𝐼)) ∈ ω → (𝐹‘(𝐺𝐼)) ∈ On)
3028, 29syl 17 . . . . . 6 (𝜑 → (𝐹‘(𝐺𝐼)) ∈ On)
31 omcl 8366 . . . . . 6 (((ω ↑o (𝐺𝐼)) ∈ On ∧ (𝐹‘(𝐺𝐼)) ∈ On) → ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) ∈ On)
3227, 30, 31syl2anc 584 . . . . 5 (𝜑 → ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) ∈ On)
335, 6, 2, 19, 13cantnfcl 9425 . . . . . . . 8 (𝜑 → ( E We (𝐹 supp ∅) ∧ dom 𝐺 ∈ ω))
3433simprd 496 . . . . . . 7 (𝜑 → dom 𝐺 ∈ ω)
35 elnn 7723 . . . . . . 7 ((𝐼 ∈ dom 𝐺 ∧ dom 𝐺 ∈ ω) → 𝐼 ∈ ω)
3618, 34, 35syl2anc 584 . . . . . 6 (𝜑𝐼 ∈ ω)
37 cnfcom.h . . . . . . . 8 𝐻 = seqω((𝑘 ∈ V, 𝑧 ∈ V ↦ (𝑀 +o 𝑧)), ∅)
3837cantnfvalf 9423 . . . . . . 7 𝐻:ω⟶On
3938ffvelrni 6960 . . . . . 6 (𝐼 ∈ ω → (𝐻𝐼) ∈ On)
4036, 39syl 17 . . . . 5 (𝜑 → (𝐻𝐼) ∈ On)
41 eqid 2738 . . . . . 6 ((𝑦 ∈ ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) ↦ ((𝐻𝐼) +o 𝑦)) ∪ (𝑦 ∈ (𝐻𝐼) ↦ (((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o 𝑦))) = ((𝑦 ∈ ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) ↦ ((𝐻𝐼) +o 𝑦)) ∪ (𝑦 ∈ (𝐻𝐼) ↦ (((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o 𝑦)))
4241oacomf1o 8396 . . . . 5 ((((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) ∈ On ∧ (𝐻𝐼) ∈ On) → ((𝑦 ∈ ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) ↦ ((𝐻𝐼) +o 𝑦)) ∪ (𝑦 ∈ (𝐻𝐼) ↦ (((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o 𝑦))):(((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o (𝐻𝐼))–1-1-onto→((𝐻𝐼) +o ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼)))))
4332, 40, 42syl2anc 584 . . . 4 (𝜑 → ((𝑦 ∈ ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) ↦ ((𝐻𝐼) +o 𝑦)) ∪ (𝑦 ∈ (𝐻𝐼) ↦ (((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o 𝑦))):(((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o (𝐻𝐼))–1-1-onto→((𝐻𝐼) +o ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼)))))
44 cnfcom.t . . . . . . . 8 𝑇 = seqω((𝑘 ∈ V, 𝑓 ∈ V ↦ 𝐾), ∅)
4544seqomsuc 8288 . . . . . . 7 (𝐼 ∈ ω → (𝑇‘suc 𝐼) = (𝐼(𝑘 ∈ V, 𝑓 ∈ V ↦ 𝐾)(𝑇𝐼)))
4636, 45syl 17 . . . . . 6 (𝜑 → (𝑇‘suc 𝐼) = (𝐼(𝑘 ∈ V, 𝑓 ∈ V ↦ 𝐾)(𝑇𝐼)))
47 nfcv 2907 . . . . . . . . 9 𝑢𝐾
48 nfcv 2907 . . . . . . . . 9 𝑣𝐾
49 nfcv 2907 . . . . . . . . 9 𝑘((𝑦 ∈ ((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) ↦ (dom 𝑣 +o 𝑦)) ∪ (𝑦 ∈ dom 𝑣 ↦ (((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) +o 𝑦)))
50 nfcv 2907 . . . . . . . . 9 𝑓((𝑦 ∈ ((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) ↦ (dom 𝑣 +o 𝑦)) ∪ (𝑦 ∈ dom 𝑣 ↦ (((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) +o 𝑦)))
51 cnfcom.k . . . . . . . . . 10 𝐾 = ((𝑥𝑀 ↦ (dom 𝑓 +o 𝑥)) ∪ (𝑥 ∈ dom 𝑓 ↦ (𝑀 +o 𝑥)))
52 oveq2 7283 . . . . . . . . . . . . 13 (𝑥 = 𝑦 → (dom 𝑓 +o 𝑥) = (dom 𝑓 +o 𝑦))
5352cbvmptv 5187 . . . . . . . . . . . 12 (𝑥𝑀 ↦ (dom 𝑓 +o 𝑥)) = (𝑦𝑀 ↦ (dom 𝑓 +o 𝑦))
54 cnfcom.m . . . . . . . . . . . . . 14 𝑀 = ((ω ↑o (𝐺𝑘)) ·o (𝐹‘(𝐺𝑘)))
55 simpl 483 . . . . . . . . . . . . . . . . 17 ((𝑘 = 𝑢𝑓 = 𝑣) → 𝑘 = 𝑢)
5655fveq2d 6778 . . . . . . . . . . . . . . . 16 ((𝑘 = 𝑢𝑓 = 𝑣) → (𝐺𝑘) = (𝐺𝑢))
5756oveq2d 7291 . . . . . . . . . . . . . . 15 ((𝑘 = 𝑢𝑓 = 𝑣) → (ω ↑o (𝐺𝑘)) = (ω ↑o (𝐺𝑢)))
5856fveq2d 6778 . . . . . . . . . . . . . . 15 ((𝑘 = 𝑢𝑓 = 𝑣) → (𝐹‘(𝐺𝑘)) = (𝐹‘(𝐺𝑢)))
5957, 58oveq12d 7293 . . . . . . . . . . . . . 14 ((𝑘 = 𝑢𝑓 = 𝑣) → ((ω ↑o (𝐺𝑘)) ·o (𝐹‘(𝐺𝑘))) = ((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))))
6054, 59eqtrid 2790 . . . . . . . . . . . . 13 ((𝑘 = 𝑢𝑓 = 𝑣) → 𝑀 = ((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))))
61 simpr 485 . . . . . . . . . . . . . . 15 ((𝑘 = 𝑢𝑓 = 𝑣) → 𝑓 = 𝑣)
6261dmeqd 5814 . . . . . . . . . . . . . 14 ((𝑘 = 𝑢𝑓 = 𝑣) → dom 𝑓 = dom 𝑣)
6362oveq1d 7290 . . . . . . . . . . . . 13 ((𝑘 = 𝑢𝑓 = 𝑣) → (dom 𝑓 +o 𝑦) = (dom 𝑣 +o 𝑦))
6460, 63mpteq12dv 5165 . . . . . . . . . . . 12 ((𝑘 = 𝑢𝑓 = 𝑣) → (𝑦𝑀 ↦ (dom 𝑓 +o 𝑦)) = (𝑦 ∈ ((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) ↦ (dom 𝑣 +o 𝑦)))
6553, 64eqtrid 2790 . . . . . . . . . . 11 ((𝑘 = 𝑢𝑓 = 𝑣) → (𝑥𝑀 ↦ (dom 𝑓 +o 𝑥)) = (𝑦 ∈ ((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) ↦ (dom 𝑣 +o 𝑦)))
66 oveq2 7283 . . . . . . . . . . . . . 14 (𝑥 = 𝑦 → (𝑀 +o 𝑥) = (𝑀 +o 𝑦))
6766cbvmptv 5187 . . . . . . . . . . . . 13 (𝑥 ∈ dom 𝑓 ↦ (𝑀 +o 𝑥)) = (𝑦 ∈ dom 𝑓 ↦ (𝑀 +o 𝑦))
6860oveq1d 7290 . . . . . . . . . . . . . 14 ((𝑘 = 𝑢𝑓 = 𝑣) → (𝑀 +o 𝑦) = (((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) +o 𝑦))
6962, 68mpteq12dv 5165 . . . . . . . . . . . . 13 ((𝑘 = 𝑢𝑓 = 𝑣) → (𝑦 ∈ dom 𝑓 ↦ (𝑀 +o 𝑦)) = (𝑦 ∈ dom 𝑣 ↦ (((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) +o 𝑦)))
7067, 69eqtrid 2790 . . . . . . . . . . . 12 ((𝑘 = 𝑢𝑓 = 𝑣) → (𝑥 ∈ dom 𝑓 ↦ (𝑀 +o 𝑥)) = (𝑦 ∈ dom 𝑣 ↦ (((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) +o 𝑦)))
7170cnveqd 5784 . . . . . . . . . . 11 ((𝑘 = 𝑢𝑓 = 𝑣) → (𝑥 ∈ dom 𝑓 ↦ (𝑀 +o 𝑥)) = (𝑦 ∈ dom 𝑣 ↦ (((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) +o 𝑦)))
7265, 71uneq12d 4098 . . . . . . . . . 10 ((𝑘 = 𝑢𝑓 = 𝑣) → ((𝑥𝑀 ↦ (dom 𝑓 +o 𝑥)) ∪ (𝑥 ∈ dom 𝑓 ↦ (𝑀 +o 𝑥))) = ((𝑦 ∈ ((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) ↦ (dom 𝑣 +o 𝑦)) ∪ (𝑦 ∈ dom 𝑣 ↦ (((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) +o 𝑦))))
7351, 72eqtrid 2790 . . . . . . . . 9 ((𝑘 = 𝑢𝑓 = 𝑣) → 𝐾 = ((𝑦 ∈ ((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) ↦ (dom 𝑣 +o 𝑦)) ∪ (𝑦 ∈ dom 𝑣 ↦ (((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) +o 𝑦))))
7447, 48, 49, 50, 73cbvmpo 7369 . . . . . . . 8 (𝑘 ∈ V, 𝑓 ∈ V ↦ 𝐾) = (𝑢 ∈ V, 𝑣 ∈ V ↦ ((𝑦 ∈ ((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) ↦ (dom 𝑣 +o 𝑦)) ∪ (𝑦 ∈ dom 𝑣 ↦ (((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) +o 𝑦))))
7574a1i 11 . . . . . . 7 (𝜑 → (𝑘 ∈ V, 𝑓 ∈ V ↦ 𝐾) = (𝑢 ∈ V, 𝑣 ∈ V ↦ ((𝑦 ∈ ((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) ↦ (dom 𝑣 +o 𝑦)) ∪ (𝑦 ∈ dom 𝑣 ↦ (((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) +o 𝑦)))))
76 simprl 768 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑢 = 𝐼𝑣 = (𝑇𝐼))) → 𝑢 = 𝐼)
7776fveq2d 6778 . . . . . . . . . . 11 ((𝜑 ∧ (𝑢 = 𝐼𝑣 = (𝑇𝐼))) → (𝐺𝑢) = (𝐺𝐼))
7877oveq2d 7291 . . . . . . . . . 10 ((𝜑 ∧ (𝑢 = 𝐼𝑣 = (𝑇𝐼))) → (ω ↑o (𝐺𝑢)) = (ω ↑o (𝐺𝐼)))
7977fveq2d 6778 . . . . . . . . . 10 ((𝜑 ∧ (𝑢 = 𝐼𝑣 = (𝑇𝐼))) → (𝐹‘(𝐺𝑢)) = (𝐹‘(𝐺𝐼)))
8078, 79oveq12d 7293 . . . . . . . . 9 ((𝜑 ∧ (𝑢 = 𝐼𝑣 = (𝑇𝐼))) → ((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) = ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))))
81 simpr 485 . . . . . . . . . . . 12 ((𝑢 = 𝐼𝑣 = (𝑇𝐼)) → 𝑣 = (𝑇𝐼))
8281dmeqd 5814 . . . . . . . . . . 11 ((𝑢 = 𝐼𝑣 = (𝑇𝐼)) → dom 𝑣 = dom (𝑇𝐼))
83 cnfcom.3 . . . . . . . . . . . 12 (𝜑 → (𝑇𝐼):(𝐻𝐼)–1-1-onto𝑂)
84 f1odm 6720 . . . . . . . . . . . 12 ((𝑇𝐼):(𝐻𝐼)–1-1-onto𝑂 → dom (𝑇𝐼) = (𝐻𝐼))
8583, 84syl 17 . . . . . . . . . . 11 (𝜑 → dom (𝑇𝐼) = (𝐻𝐼))
8682, 85sylan9eqr 2800 . . . . . . . . . 10 ((𝜑 ∧ (𝑢 = 𝐼𝑣 = (𝑇𝐼))) → dom 𝑣 = (𝐻𝐼))
8786oveq1d 7290 . . . . . . . . 9 ((𝜑 ∧ (𝑢 = 𝐼𝑣 = (𝑇𝐼))) → (dom 𝑣 +o 𝑦) = ((𝐻𝐼) +o 𝑦))
8880, 87mpteq12dv 5165 . . . . . . . 8 ((𝜑 ∧ (𝑢 = 𝐼𝑣 = (𝑇𝐼))) → (𝑦 ∈ ((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) ↦ (dom 𝑣 +o 𝑦)) = (𝑦 ∈ ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) ↦ ((𝐻𝐼) +o 𝑦)))
8980oveq1d 7290 . . . . . . . . . 10 ((𝜑 ∧ (𝑢 = 𝐼𝑣 = (𝑇𝐼))) → (((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) +o 𝑦) = (((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o 𝑦))
9086, 89mpteq12dv 5165 . . . . . . . . 9 ((𝜑 ∧ (𝑢 = 𝐼𝑣 = (𝑇𝐼))) → (𝑦 ∈ dom 𝑣 ↦ (((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) +o 𝑦)) = (𝑦 ∈ (𝐻𝐼) ↦ (((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o 𝑦)))
9190cnveqd 5784 . . . . . . . 8 ((𝜑 ∧ (𝑢 = 𝐼𝑣 = (𝑇𝐼))) → (𝑦 ∈ dom 𝑣 ↦ (((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) +o 𝑦)) = (𝑦 ∈ (𝐻𝐼) ↦ (((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o 𝑦)))
9288, 91uneq12d 4098 . . . . . . 7 ((𝜑 ∧ (𝑢 = 𝐼𝑣 = (𝑇𝐼))) → ((𝑦 ∈ ((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) ↦ (dom 𝑣 +o 𝑦)) ∪ (𝑦 ∈ dom 𝑣 ↦ (((ω ↑o (𝐺𝑢)) ·o (𝐹‘(𝐺𝑢))) +o 𝑦))) = ((𝑦 ∈ ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) ↦ ((𝐻𝐼) +o 𝑦)) ∪ (𝑦 ∈ (𝐻𝐼) ↦ (((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o 𝑦))))
9318elexd 3452 . . . . . . 7 (𝜑𝐼 ∈ V)
94 fvexd 6789 . . . . . . 7 (𝜑 → (𝑇𝐼) ∈ V)
95 ovex 7308 . . . . . . . . . 10 ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) ∈ V
9695mptex 7099 . . . . . . . . 9 (𝑦 ∈ ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) ↦ ((𝐻𝐼) +o 𝑦)) ∈ V
97 fvex 6787 . . . . . . . . . . 11 (𝐻𝐼) ∈ V
9897mptex 7099 . . . . . . . . . 10 (𝑦 ∈ (𝐻𝐼) ↦ (((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o 𝑦)) ∈ V
9998cnvex 7772 . . . . . . . . 9 (𝑦 ∈ (𝐻𝐼) ↦ (((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o 𝑦)) ∈ V
10096, 99unex 7596 . . . . . . . 8 ((𝑦 ∈ ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) ↦ ((𝐻𝐼) +o 𝑦)) ∪ (𝑦 ∈ (𝐻𝐼) ↦ (((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o 𝑦))) ∈ V
101100a1i 11 . . . . . . 7 (𝜑 → ((𝑦 ∈ ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) ↦ ((𝐻𝐼) +o 𝑦)) ∪ (𝑦 ∈ (𝐻𝐼) ↦ (((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o 𝑦))) ∈ V)
10275, 92, 93, 94, 101ovmpod 7425 . . . . . 6 (𝜑 → (𝐼(𝑘 ∈ V, 𝑓 ∈ V ↦ 𝐾)(𝑇𝐼)) = ((𝑦 ∈ ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) ↦ ((𝐻𝐼) +o 𝑦)) ∪ (𝑦 ∈ (𝐻𝐼) ↦ (((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o 𝑦))))
10346, 102eqtrd 2778 . . . . 5 (𝜑 → (𝑇‘suc 𝐼) = ((𝑦 ∈ ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) ↦ ((𝐻𝐼) +o 𝑦)) ∪ (𝑦 ∈ (𝐻𝐼) ↦ (((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o 𝑦))))
104103f1oeq1d 6711 . . . 4 (𝜑 → ((𝑇‘suc 𝐼):(((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o (𝐻𝐼))–1-1-onto→((𝐻𝐼) +o ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼)))) ↔ ((𝑦 ∈ ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) ↦ ((𝐻𝐼) +o 𝑦)) ∪ (𝑦 ∈ (𝐻𝐼) ↦ (((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o 𝑦))):(((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o (𝐻𝐼))–1-1-onto→((𝐻𝐼) +o ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))))))
10543, 104mpbird 256 . . 3 (𝜑 → (𝑇‘suc 𝐼):(((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o (𝐻𝐼))–1-1-onto→((𝐻𝐼) +o ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼)))))
1061a1i 11 . . . . . 6 ((𝐴 ∈ On ∧ 𝐹𝑆) → ω ∈ On)
107 simpl 483 . . . . . 6 ((𝐴 ∈ On ∧ 𝐹𝑆) → 𝐴 ∈ On)
108 simpr 485 . . . . . 6 ((𝐴 ∈ On ∧ 𝐹𝑆) → 𝐹𝑆)
10954oveq1i 7285 . . . . . . . . . 10 (𝑀 +o 𝑧) = (((ω ↑o (𝐺𝑘)) ·o (𝐹‘(𝐺𝑘))) +o 𝑧)
110109a1i 11 . . . . . . . . 9 ((𝑘 ∈ V ∧ 𝑧 ∈ V) → (𝑀 +o 𝑧) = (((ω ↑o (𝐺𝑘)) ·o (𝐹‘(𝐺𝑘))) +o 𝑧))
111110mpoeq3ia 7353 . . . . . . . 8 (𝑘 ∈ V, 𝑧 ∈ V ↦ (𝑀 +o 𝑧)) = (𝑘 ∈ V, 𝑧 ∈ V ↦ (((ω ↑o (𝐺𝑘)) ·o (𝐹‘(𝐺𝑘))) +o 𝑧))
112 eqid 2738 . . . . . . . 8 ∅ = ∅
113 seqomeq12 8285 . . . . . . . 8 (((𝑘 ∈ V, 𝑧 ∈ V ↦ (𝑀 +o 𝑧)) = (𝑘 ∈ V, 𝑧 ∈ V ↦ (((ω ↑o (𝐺𝑘)) ·o (𝐹‘(𝐺𝑘))) +o 𝑧)) ∧ ∅ = ∅) → seqω((𝑘 ∈ V, 𝑧 ∈ V ↦ (𝑀 +o 𝑧)), ∅) = seqω((𝑘 ∈ V, 𝑧 ∈ V ↦ (((ω ↑o (𝐺𝑘)) ·o (𝐹‘(𝐺𝑘))) +o 𝑧)), ∅))
114111, 112, 113mp2an 689 . . . . . . 7 seqω((𝑘 ∈ V, 𝑧 ∈ V ↦ (𝑀 +o 𝑧)), ∅) = seqω((𝑘 ∈ V, 𝑧 ∈ V ↦ (((ω ↑o (𝐺𝑘)) ·o (𝐹‘(𝐺𝑘))) +o 𝑧)), ∅)
11537, 114eqtri 2766 . . . . . 6 𝐻 = seqω((𝑘 ∈ V, 𝑧 ∈ V ↦ (((ω ↑o (𝐺𝑘)) ·o (𝐹‘(𝐺𝑘))) +o 𝑧)), ∅)
1165, 106, 107, 19, 108, 115cantnfsuc 9428 . . . . 5 (((𝐴 ∈ On ∧ 𝐹𝑆) ∧ 𝐼 ∈ ω) → (𝐻‘suc 𝐼) = (((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o (𝐻𝐼)))
1172, 13, 36, 116syl21anc 835 . . . 4 (𝜑 → (𝐻‘suc 𝐼) = (((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o (𝐻𝐼)))
118117f1oeq2d 6712 . . 3 (𝜑 → ((𝑇‘suc 𝐼):(𝐻‘suc 𝐼)–1-1-onto→((𝐻𝐼) +o ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼)))) ↔ (𝑇‘suc 𝐼):(((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) +o (𝐻𝐼))–1-1-onto→((𝐻𝐼) +o ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))))))
119105, 118mpbird 256 . 2 (𝜑 → (𝑇‘suc 𝐼):(𝐻‘suc 𝐼)–1-1-onto→((𝐻𝐼) +o ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼)))))
120 sssucid 6343 . . . . . 6 dom 𝐺 ⊆ suc dom 𝐺
121120, 18sselid 3919 . . . . 5 (𝜑𝐼 ∈ suc dom 𝐺)
122 epelg 5496 . . . . . . . . . . 11 (𝐼 ∈ dom 𝐺 → (𝑦 E 𝐼𝑦𝐼))
12318, 122syl 17 . . . . . . . . . 10 (𝜑 → (𝑦 E 𝐼𝑦𝐼))
124123biimpar 478 . . . . . . . . 9 ((𝜑𝑦𝐼) → 𝑦 E 𝐼)
125 ovexd 7310 . . . . . . . . . . . 12 (𝜑 → (𝐹 supp ∅) ∈ V)
12633simpld 495 . . . . . . . . . . . 12 (𝜑 → E We (𝐹 supp ∅))
12719oiiso 9296 . . . . . . . . . . . 12 (((𝐹 supp ∅) ∈ V ∧ E We (𝐹 supp ∅)) → 𝐺 Isom E , E (dom 𝐺, (𝐹 supp ∅)))
128125, 126, 127syl2anc 584 . . . . . . . . . . 11 (𝜑𝐺 Isom E , E (dom 𝐺, (𝐹 supp ∅)))
129128adantr 481 . . . . . . . . . 10 ((𝜑𝑦𝐼) → 𝐺 Isom E , E (dom 𝐺, (𝐹 supp ∅)))
13019oicl 9288 . . . . . . . . . . . 12 Ord dom 𝐺
131 ordelss 6282 . . . . . . . . . . . 12 ((Ord dom 𝐺𝐼 ∈ dom 𝐺) → 𝐼 ⊆ dom 𝐺)
132130, 18, 131sylancr 587 . . . . . . . . . . 11 (𝜑𝐼 ⊆ dom 𝐺)
133132sselda 3921 . . . . . . . . . 10 ((𝜑𝑦𝐼) → 𝑦 ∈ dom 𝐺)
13418adantr 481 . . . . . . . . . 10 ((𝜑𝑦𝐼) → 𝐼 ∈ dom 𝐺)
135 isorel 7197 . . . . . . . . . 10 ((𝐺 Isom E , E (dom 𝐺, (𝐹 supp ∅)) ∧ (𝑦 ∈ dom 𝐺𝐼 ∈ dom 𝐺)) → (𝑦 E 𝐼 ↔ (𝐺𝑦) E (𝐺𝐼)))
136129, 133, 134, 135syl12anc 834 . . . . . . . . 9 ((𝜑𝑦𝐼) → (𝑦 E 𝐼 ↔ (𝐺𝑦) E (𝐺𝐼)))
137124, 136mpbid 231 . . . . . . . 8 ((𝜑𝑦𝐼) → (𝐺𝑦) E (𝐺𝐼))
138 fvex 6787 . . . . . . . . 9 (𝐺𝐼) ∈ V
139138epeli 5497 . . . . . . . 8 ((𝐺𝑦) E (𝐺𝐼) ↔ (𝐺𝑦) ∈ (𝐺𝐼))
140137, 139sylib 217 . . . . . . 7 ((𝜑𝑦𝐼) → (𝐺𝑦) ∈ (𝐺𝐼))
141140ralrimiva 3103 . . . . . 6 (𝜑 → ∀𝑦𝐼 (𝐺𝑦) ∈ (𝐺𝐼))
142 ffun 6603 . . . . . . . 8 (𝐺:dom 𝐺⟶(𝐹 supp ∅) → Fun 𝐺)
14320, 142ax-mp 5 . . . . . . 7 Fun 𝐺
144 funimass4 6834 . . . . . . 7 ((Fun 𝐺𝐼 ⊆ dom 𝐺) → ((𝐺𝐼) ⊆ (𝐺𝐼) ↔ ∀𝑦𝐼 (𝐺𝑦) ∈ (𝐺𝐼)))
145143, 132, 144sylancr 587 . . . . . 6 (𝜑 → ((𝐺𝐼) ⊆ (𝐺𝐼) ↔ ∀𝑦𝐼 (𝐺𝑦) ∈ (𝐺𝐼)))
146141, 145mpbird 256 . . . . 5 (𝜑 → (𝐺𝐼) ⊆ (𝐺𝐼))
1471a1i 11 . . . . . 6 (((𝐴 ∈ On ∧ 𝐹𝑆) ∧ (𝐼 ∈ suc dom 𝐺 ∧ (𝐺𝐼) ∈ On ∧ (𝐺𝐼) ⊆ (𝐺𝐼))) → ω ∈ On)
148 simpll 764 . . . . . 6 (((𝐴 ∈ On ∧ 𝐹𝑆) ∧ (𝐼 ∈ suc dom 𝐺 ∧ (𝐺𝐼) ∈ On ∧ (𝐺𝐼) ⊆ (𝐺𝐼))) → 𝐴 ∈ On)
149 simplr 766 . . . . . 6 (((𝐴 ∈ On ∧ 𝐹𝑆) ∧ (𝐼 ∈ suc dom 𝐺 ∧ (𝐺𝐼) ∈ On ∧ (𝐺𝐼) ⊆ (𝐺𝐼))) → 𝐹𝑆)
150 peano1 7735 . . . . . . 7 ∅ ∈ ω
151150a1i 11 . . . . . 6 (((𝐴 ∈ On ∧ 𝐹𝑆) ∧ (𝐼 ∈ suc dom 𝐺 ∧ (𝐺𝐼) ∈ On ∧ (𝐺𝐼) ⊆ (𝐺𝐼))) → ∅ ∈ ω)
152 simpr1 1193 . . . . . 6 (((𝐴 ∈ On ∧ 𝐹𝑆) ∧ (𝐼 ∈ suc dom 𝐺 ∧ (𝐺𝐼) ∈ On ∧ (𝐺𝐼) ⊆ (𝐺𝐼))) → 𝐼 ∈ suc dom 𝐺)
153 simpr2 1194 . . . . . 6 (((𝐴 ∈ On ∧ 𝐹𝑆) ∧ (𝐼 ∈ suc dom 𝐺 ∧ (𝐺𝐼) ∈ On ∧ (𝐺𝐼) ⊆ (𝐺𝐼))) → (𝐺𝐼) ∈ On)
154 simpr3 1195 . . . . . 6 (((𝐴 ∈ On ∧ 𝐹𝑆) ∧ (𝐼 ∈ suc dom 𝐺 ∧ (𝐺𝐼) ∈ On ∧ (𝐺𝐼) ⊆ (𝐺𝐼))) → (𝐺𝐼) ⊆ (𝐺𝐼))
1555, 147, 148, 19, 149, 115, 151, 152, 153, 154cantnflt 9430 . . . . 5 (((𝐴 ∈ On ∧ 𝐹𝑆) ∧ (𝐼 ∈ suc dom 𝐺 ∧ (𝐺𝐼) ∈ On ∧ (𝐺𝐼) ⊆ (𝐺𝐼))) → (𝐻𝐼) ∈ (ω ↑o (𝐺𝐼)))
1562, 13, 121, 25, 146, 155syl23anc 1376 . . . 4 (𝜑 → (𝐻𝐼) ∈ (ω ↑o (𝐺𝐼)))
15716ffnd 6601 . . . . . . . . 9 (𝜑𝐹 Fn 𝐴)
158 0ex 5231 . . . . . . . . . 10 ∅ ∈ V
159158a1i 11 . . . . . . . . 9 (𝜑 → ∅ ∈ V)
160 elsuppfn 7987 . . . . . . . . 9 ((𝐹 Fn 𝐴𝐴 ∈ On ∧ ∅ ∈ V) → ((𝐺𝐼) ∈ (𝐹 supp ∅) ↔ ((𝐺𝐼) ∈ 𝐴 ∧ (𝐹‘(𝐺𝐼)) ≠ ∅)))
161157, 2, 159, 160syl3anc 1370 . . . . . . . 8 (𝜑 → ((𝐺𝐼) ∈ (𝐹 supp ∅) ↔ ((𝐺𝐼) ∈ 𝐴 ∧ (𝐹‘(𝐺𝐼)) ≠ ∅)))
162 simpr 485 . . . . . . . 8 (((𝐺𝐼) ∈ 𝐴 ∧ (𝐹‘(𝐺𝐼)) ≠ ∅) → (𝐹‘(𝐺𝐼)) ≠ ∅)
163161, 162syl6bi 252 . . . . . . 7 (𝜑 → ((𝐺𝐼) ∈ (𝐹 supp ∅) → (𝐹‘(𝐺𝐼)) ≠ ∅))
16422, 163mpd 15 . . . . . 6 (𝜑 → (𝐹‘(𝐺𝐼)) ≠ ∅)
165 on0eln0 6321 . . . . . . 7 ((𝐹‘(𝐺𝐼)) ∈ On → (∅ ∈ (𝐹‘(𝐺𝐼)) ↔ (𝐹‘(𝐺𝐼)) ≠ ∅))
16630, 165syl 17 . . . . . 6 (𝜑 → (∅ ∈ (𝐹‘(𝐺𝐼)) ↔ (𝐹‘(𝐺𝐼)) ≠ ∅))
167164, 166mpbird 256 . . . . 5 (𝜑 → ∅ ∈ (𝐹‘(𝐺𝐼)))
168 omword1 8404 . . . . 5 ((((ω ↑o (𝐺𝐼)) ∈ On ∧ (𝐹‘(𝐺𝐼)) ∈ On) ∧ ∅ ∈ (𝐹‘(𝐺𝐼))) → (ω ↑o (𝐺𝐼)) ⊆ ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))))
16927, 30, 167, 168syl21anc 835 . . . 4 (𝜑 → (ω ↑o (𝐺𝐼)) ⊆ ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))))
170 oaabs2 8479 . . . 4 ((((𝐻𝐼) ∈ (ω ↑o (𝐺𝐼)) ∧ ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))) ∈ On) ∧ (ω ↑o (𝐺𝐼)) ⊆ ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼)))) → ((𝐻𝐼) +o ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼)))) = ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))))
171156, 32, 169, 170syl21anc 835 . . 3 (𝜑 → ((𝐻𝐼) +o ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼)))) = ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))))
172171f1oeq3d 6713 . 2 (𝜑 → ((𝑇‘suc 𝐼):(𝐻‘suc 𝐼)–1-1-onto→((𝐻𝐼) +o ((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼)))) ↔ (𝑇‘suc 𝐼):(𝐻‘suc 𝐼)–1-1-onto→((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼)))))
173119, 172mpbid 231 1 (𝜑 → (𝑇‘suc 𝐼):(𝐻‘suc 𝐼)–1-1-onto→((ω ↑o (𝐺𝐼)) ·o (𝐹‘(𝐺𝐼))))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 205  wa 396  w3a 1086   = wceq 1539  wcel 2106  wne 2943  wral 3064  Vcvv 3432  cun 3885  wss 3887  c0 4256   class class class wbr 5074  cmpt 5157   E cep 5494   We wwe 5543  ccnv 5588  dom cdm 5589  cima 5592  Ord word 6265  Oncon0 6266  suc csuc 6268  Fun wfun 6427   Fn wfn 6428  wf 6429  1-1-ontowf1o 6432  cfv 6433   Isom wiso 6434  (class class class)co 7275  cmpo 7277  ωcom 7712   supp csupp 7977  seqωcseqom 8278   +o coa 8294   ·o comu 8295  o coe 8296   finSupp cfsupp 9128  OrdIsocoi 9268   CNF ccnf 9419
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  ax-inf2 9399
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-supp 7978  df-frecs 8097  df-wrecs 8128  df-recs 8202  df-rdg 8241  df-seqom 8279  df-1o 8297  df-2o 8298  df-oadd 8301  df-omul 8302  df-oexp 8303  df-er 8498  df-map 8617  df-en 8734  df-dom 8735  df-sdom 8736  df-fin 8737  df-fsupp 9129  df-oi 9269  df-cnf 9420
This theorem is referenced by:  cnfcom  9458
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