Theorem cantnf 8590

Description: The Cantor Normal Form theorem. The function (𝐴 CNF 𝐵), which maps a finitely supported function from 𝐵 to 𝐴 to the sum ((𝐴 ↑_𝑜 𝑓(𝑎1)) ∘ 𝑎1) +_𝑜 ((𝐴 ↑_𝑜 𝑓(𝑎2)) ∘ 𝑎2) +_𝑜 ... over all indexes 𝑎 < 𝐵 such that 𝑓(𝑎) is nonzero, is an order isomorphism from the ordering 𝑇 of finitely supported functions to the set (𝐴 ↑_𝑜 𝐵) under the natural order. Setting 𝐴 = ω and letting 𝐵 be arbitrarily large, the surjectivity of this function implies that every ordinal has a Cantor normal form (and injectivity, together with coherence cantnfres 8574, implies that such a representation is unique). (Contributed by Mario Carneiro, 28-May-2015.)

Hypotheses

Ref	Expression
cantnfs.s	⊢ 𝑆 = dom (𝐴 CNF 𝐵)
cantnfs.a	⊢ (𝜑 → 𝐴 ∈ On)
cantnfs.b	⊢ (𝜑 → 𝐵 ∈ On)
oemapval.t	⊢ 𝑇 = {⟨𝑥, 𝑦⟩ ∣ ∃𝑧 ∈ 𝐵 ((𝑥‘𝑧) ∈ (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤)))}

Assertion

Ref	Expression
cantnf	⊢ (𝜑 → (𝐴 CNF 𝐵) Isom 𝑇, E (𝑆, (𝐴 ↑𝑜 𝐵)))

Distinct variable groups:   𝑥,𝑤,𝑦,𝑧,𝐵   𝑤,𝐴,𝑥,𝑦,𝑧   𝑥,𝑆,𝑦,𝑧   𝜑,𝑥,𝑦,𝑧

Allowed substitution hints:   𝜑(𝑤)   𝑆(𝑤)   𝑇(𝑥,𝑦,𝑧,𝑤)

Proof of Theorem cantnf

Dummy variables 𝑓 𝑐 𝑔 𝑘 𝑡 𝑢 𝑣 𝑎 𝑏 𝑑 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		cantnfs.s	. . 3 ⊢ 𝑆 = dom (𝐴 CNF 𝐵)
2		cantnfs.a	. . 3 ⊢ (𝜑 → 𝐴 ∈ On)
3		cantnfs.b	. . 3 ⊢ (𝜑 → 𝐵 ∈ On)
4		oemapval.t	. . 3 ⊢ 𝑇 = {⟨𝑥, 𝑦⟩ ∣ ∃𝑧 ∈ 𝐵 ((𝑥‘𝑧) ∈ (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤)))}
5	1, 2, 3, 4	oemapso 8579	. 2 ⊢ (𝜑 → 𝑇 Or 𝑆)
6		oecl 7617	. . . . 5 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (𝐴 ↑𝑜 𝐵) ∈ On)
7	2, 3, 6	syl2anc 693	. . . 4 ⊢ (𝜑 → (𝐴 ↑𝑜 𝐵) ∈ On)
8		eloni 5733	. . . 4 ⊢ ((𝐴 ↑𝑜 𝐵) ∈ On → Ord (𝐴 ↑𝑜 𝐵))
9	7, 8	syl 17	. . 3 ⊢ (𝜑 → Ord (𝐴 ↑𝑜 𝐵))
10		ordwe 5736	. . 3 ⊢ (Ord (𝐴 ↑𝑜 𝐵) → E We (𝐴 ↑𝑜 𝐵))
11		weso 5105	. . 3 ⊢ ( E We (𝐴 ↑𝑜 𝐵) → E Or (𝐴 ↑𝑜 𝐵))
12		sopo 5052	. . 3 ⊢ ( E Or (𝐴 ↑𝑜 𝐵) → E Po (𝐴 ↑𝑜 𝐵))
13	9, 10, 11, 12	4syl 19	. 2 ⊢ (𝜑 → E Po (𝐴 ↑𝑜 𝐵))
14	1, 2, 3	cantnff 8571	. . 3 ⊢ (𝜑 → (𝐴 CNF 𝐵):𝑆⟶(𝐴 ↑𝑜 𝐵))
15		frn 6053	. . . . 5 ⊢ ((𝐴 CNF 𝐵):𝑆⟶(𝐴 ↑𝑜 𝐵) → ran (𝐴 CNF 𝐵) ⊆ (𝐴 ↑𝑜 𝐵))
16	14, 15	syl 17	. . . 4 ⊢ (𝜑 → ran (𝐴 CNF 𝐵) ⊆ (𝐴 ↑𝑜 𝐵))
17		onss 6990	. . . . . . . 8 ⊢ ((𝐴 ↑𝑜 𝐵) ∈ On → (𝐴 ↑𝑜 𝐵) ⊆ On)
18	7, 17	syl 17	. . . . . . 7 ⊢ (𝜑 → (𝐴 ↑𝑜 𝐵) ⊆ On)
19	18	sseld 3602	. . . . . 6 ⊢ (𝜑 → (𝑡 ∈ (𝐴 ↑𝑜 𝐵) → 𝑡 ∈ On))
20		eleq1 2689	. . . . . . . . . 10 ⊢ (𝑡 = 𝑦 → (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ↔ 𝑦 ∈ (𝐴 ↑𝑜 𝐵)))
21		eleq1 2689	. . . . . . . . . 10 ⊢ (𝑡 = 𝑦 → (𝑡 ∈ ran (𝐴 CNF 𝐵) ↔ 𝑦 ∈ ran (𝐴 CNF 𝐵)))
22	20, 21	imbi12d 334	. . . . . . . . 9 ⊢ (𝑡 = 𝑦 → ((𝑡 ∈ (𝐴 ↑𝑜 𝐵) → 𝑡 ∈ ran (𝐴 CNF 𝐵)) ↔ (𝑦 ∈ (𝐴 ↑𝑜 𝐵) → 𝑦 ∈ ran (𝐴 CNF 𝐵))))
23	22	imbi2d 330	. . . . . . . 8 ⊢ (𝑡 = 𝑦 → ((𝜑 → (𝑡 ∈ (𝐴 ↑𝑜 𝐵) → 𝑡 ∈ ran (𝐴 CNF 𝐵))) ↔ (𝜑 → (𝑦 ∈ (𝐴 ↑𝑜 𝐵) → 𝑦 ∈ ran (𝐴 CNF 𝐵)))))
24		r19.21v 2960	. . . . . . . . 9 ⊢ (∀𝑦 ∈ 𝑡 (𝜑 → (𝑦 ∈ (𝐴 ↑𝑜 𝐵) → 𝑦 ∈ ran (𝐴 CNF 𝐵))) ↔ (𝜑 → ∀𝑦 ∈ 𝑡 (𝑦 ∈ (𝐴 ↑𝑜 𝐵) → 𝑦 ∈ ran (𝐴 CNF 𝐵))))
25		ordelss 5739	. . . . . . . . . . . . . . . . . . 19 ⊢ ((Ord (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ∈ (𝐴 ↑𝑜 𝐵)) → 𝑡 ⊆ (𝐴 ↑𝑜 𝐵))
26	9, 25	sylan 488	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ 𝑡 ∈ (𝐴 ↑𝑜 𝐵)) → 𝑡 ⊆ (𝐴 ↑𝑜 𝐵))
27	26	sselda 3603	. . . . . . . . . . . . . . . . 17 ⊢ (((𝜑 ∧ 𝑡 ∈ (𝐴 ↑𝑜 𝐵)) ∧ 𝑦 ∈ 𝑡) → 𝑦 ∈ (𝐴 ↑𝑜 𝐵))
28		pm5.5 351	. . . . . . . . . . . . . . . . 17 ⊢ (𝑦 ∈ (𝐴 ↑𝑜 𝐵) → ((𝑦 ∈ (𝐴 ↑𝑜 𝐵) → 𝑦 ∈ ran (𝐴 CNF 𝐵)) ↔ 𝑦 ∈ ran (𝐴 CNF 𝐵)))
29	27, 28	syl 17	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ 𝑡 ∈ (𝐴 ↑𝑜 𝐵)) ∧ 𝑦 ∈ 𝑡) → ((𝑦 ∈ (𝐴 ↑𝑜 𝐵) → 𝑦 ∈ ran (𝐴 CNF 𝐵)) ↔ 𝑦 ∈ ran (𝐴 CNF 𝐵)))
30	29	ralbidva 2985	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑡 ∈ (𝐴 ↑𝑜 𝐵)) → (∀𝑦 ∈ 𝑡 (𝑦 ∈ (𝐴 ↑𝑜 𝐵) → 𝑦 ∈ ran (𝐴 CNF 𝐵)) ↔ ∀𝑦 ∈ 𝑡 𝑦 ∈ ran (𝐴 CNF 𝐵)))
31		dfss3 3592	. . . . . . . . . . . . . . 15 ⊢ (𝑡 ⊆ ran (𝐴 CNF 𝐵) ↔ ∀𝑦 ∈ 𝑡 𝑦 ∈ ran (𝐴 CNF 𝐵))
32	30, 31	syl6bbr 278	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑡 ∈ (𝐴 ↑𝑜 𝐵)) → (∀𝑦 ∈ 𝑡 (𝑦 ∈ (𝐴 ↑𝑜 𝐵) → 𝑦 ∈ ran (𝐴 CNF 𝐵)) ↔ 𝑡 ⊆ ran (𝐴 CNF 𝐵)))
33		eleq1 2689	. . . . . . . . . . . . . . . 16 ⊢ (𝑡 = ∅ → (𝑡 ∈ ran (𝐴 CNF 𝐵) ↔ ∅ ∈ ran (𝐴 CNF 𝐵)))
34	2	adantr 481	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → 𝐴 ∈ On)
35	34	adantr 481	. . . . . . . . . . . . . . . . 17 ⊢ (((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) ∧ 𝑡 ≠ ∅) → 𝐴 ∈ On)
36	3	adantr 481	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → 𝐵 ∈ On)
37	36	adantr 481	. . . . . . . . . . . . . . . . 17 ⊢ (((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) ∧ 𝑡 ≠ ∅) → 𝐵 ∈ On)
38		simplrl 800	. . . . . . . . . . . . . . . . 17 ⊢ (((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) ∧ 𝑡 ≠ ∅) → 𝑡 ∈ (𝐴 ↑𝑜 𝐵))
39		simplrr 801	. . . . . . . . . . . . . . . . 17 ⊢ (((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) ∧ 𝑡 ≠ ∅) → 𝑡 ⊆ ran (𝐴 CNF 𝐵))
40	7	adantr 481	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → (𝐴 ↑𝑜 𝐵) ∈ On)
41		simprl 794	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → 𝑡 ∈ (𝐴 ↑𝑜 𝐵))
42		onelon 5748	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝐴 ↑𝑜 𝐵) ∈ On ∧ 𝑡 ∈ (𝐴 ↑𝑜 𝐵)) → 𝑡 ∈ On)
43	40, 41, 42	syl2anc 693	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → 𝑡 ∈ On)
44		on0eln0 5780	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑡 ∈ On → (∅ ∈ 𝑡 ↔ 𝑡 ≠ ∅))
45	43, 44	syl 17	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → (∅ ∈ 𝑡 ↔ 𝑡 ≠ ∅))
46	45	biimpar 502	. . . . . . . . . . . . . . . . 17 ⊢ (((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) ∧ 𝑡 ≠ ∅) → ∅ ∈ 𝑡)
47		eqid 2622	. . . . . . . . . . . . . . . . 17 ⊢ ∪ ∩ {𝑐 ∈ On ∣ 𝑡 ∈ (𝐴 ↑𝑜 𝑐)} = ∪ ∩ {𝑐 ∈ On ∣ 𝑡 ∈ (𝐴 ↑𝑜 𝑐)}
48		eqid 2622	. . . . . . . . . . . . . . . . 17 ⊢ (℩𝑑∃𝑎 ∈ On ∃𝑏 ∈ (𝐴 ↑𝑜 ∪ ∩ {𝑐 ∈ On ∣ 𝑡 ∈ (𝐴 ↑𝑜 𝑐)})(𝑑 = ⟨𝑎, 𝑏⟩ ∧ (((𝐴 ↑𝑜 ∪ ∩ {𝑐 ∈ On ∣ 𝑡 ∈ (𝐴 ↑𝑜 𝑐)}) ·𝑜 𝑎) +𝑜 𝑏) = 𝑡)) = (℩𝑑∃𝑎 ∈ On ∃𝑏 ∈ (𝐴 ↑𝑜 ∪ ∩ {𝑐 ∈ On ∣ 𝑡 ∈ (𝐴 ↑𝑜 𝑐)})(𝑑 = ⟨𝑎, 𝑏⟩ ∧ (((𝐴 ↑𝑜 ∪ ∩ {𝑐 ∈ On ∣ 𝑡 ∈ (𝐴 ↑𝑜 𝑐)}) ·𝑜 𝑎) +𝑜 𝑏) = 𝑡))
49		eqid 2622	. . . . . . . . . . . . . . . . 17 ⊢ (1st ‘(℩𝑑∃𝑎 ∈ On ∃𝑏 ∈ (𝐴 ↑𝑜 ∪ ∩ {𝑐 ∈ On ∣ 𝑡 ∈ (𝐴 ↑𝑜 𝑐)})(𝑑 = ⟨𝑎, 𝑏⟩ ∧ (((𝐴 ↑𝑜 ∪ ∩ {𝑐 ∈ On ∣ 𝑡 ∈ (𝐴 ↑𝑜 𝑐)}) ·𝑜 𝑎) +𝑜 𝑏) = 𝑡))) = (1st ‘(℩𝑑∃𝑎 ∈ On ∃𝑏 ∈ (𝐴 ↑𝑜 ∪ ∩ {𝑐 ∈ On ∣ 𝑡 ∈ (𝐴 ↑𝑜 𝑐)})(𝑑 = ⟨𝑎, 𝑏⟩ ∧ (((𝐴 ↑𝑜 ∪ ∩ {𝑐 ∈ On ∣ 𝑡 ∈ (𝐴 ↑𝑜 𝑐)}) ·𝑜 𝑎) +𝑜 𝑏) = 𝑡)))
50		eqid 2622	. . . . . . . . . . . . . . . . 17 ⊢ (2nd ‘(℩𝑑∃𝑎 ∈ On ∃𝑏 ∈ (𝐴 ↑𝑜 ∪ ∩ {𝑐 ∈ On ∣ 𝑡 ∈ (𝐴 ↑𝑜 𝑐)})(𝑑 = ⟨𝑎, 𝑏⟩ ∧ (((𝐴 ↑𝑜 ∪ ∩ {𝑐 ∈ On ∣ 𝑡 ∈ (𝐴 ↑𝑜 𝑐)}) ·𝑜 𝑎) +𝑜 𝑏) = 𝑡))) = (2nd ‘(℩𝑑∃𝑎 ∈ On ∃𝑏 ∈ (𝐴 ↑𝑜 ∪ ∩ {𝑐 ∈ On ∣ 𝑡 ∈ (𝐴 ↑𝑜 𝑐)})(𝑑 = ⟨𝑎, 𝑏⟩ ∧ (((𝐴 ↑𝑜 ∪ ∩ {𝑐 ∈ On ∣ 𝑡 ∈ (𝐴 ↑𝑜 𝑐)}) ·𝑜 𝑎) +𝑜 𝑏) = 𝑡)))
51	1, 35, 37, 4, 38, 39, 46, 47, 48, 49, 50	cantnflem4 8589	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) ∧ 𝑡 ≠ ∅) → 𝑡 ∈ ran (𝐴 CNF 𝐵))
52		fczsupp0 7324	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝐵 × {∅}) supp ∅) = ∅
53	52	eqcomi 2631	. . . . . . . . . . . . . . . . . . . 20 ⊢ ∅ = ((𝐵 × {∅}) supp ∅)
54		oieq2 8418	. . . . . . . . . . . . . . . . . . . 20 ⊢ (∅ = ((𝐵 × {∅}) supp ∅) → OrdIso( E , ∅) = OrdIso( E , ((𝐵 × {∅}) supp ∅)))
55	53, 54	ax-mp 5	. . . . . . . . . . . . . . . . . . 19 ⊢ OrdIso( E , ∅) = OrdIso( E , ((𝐵 × {∅}) supp ∅))
56		ne0i 3921	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝑦 ∈ 𝐵 → 𝐵 ≠ ∅)
57		ne0i 3921	. . . . . . . . . . . . . . . . . . . . . . . . . . 27 ⊢ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) → (𝐴 ↑𝑜 𝐵) ≠ ∅)
58	57	ad2antrl 764	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → (𝐴 ↑𝑜 𝐵) ≠ ∅)
59		oveq1 6657	. . . . . . . . . . . . . . . . . . . . . . . . . . 27 ⊢ (𝐴 = ∅ → (𝐴 ↑𝑜 𝐵) = (∅ ↑𝑜 𝐵))
60	59	neeq1d 2853	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ (𝐴 = ∅ → ((𝐴 ↑𝑜 𝐵) ≠ ∅ ↔ (∅ ↑𝑜 𝐵) ≠ ∅))
61	58, 60	syl5ibcom 235	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → (𝐴 = ∅ → (∅ ↑𝑜 𝐵) ≠ ∅))
62	61	necon2d 2817	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → ((∅ ↑𝑜 𝐵) = ∅ → 𝐴 ≠ ∅))
63		on0eln0 5780	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ (𝐵 ∈ On → (∅ ∈ 𝐵 ↔ 𝐵 ≠ ∅))
64		oe0m1 7601	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ (𝐵 ∈ On → (∅ ∈ 𝐵 ↔ (∅ ↑𝑜 𝐵) = ∅))
65	63, 64	bitr3d 270	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝐵 ∈ On → (𝐵 ≠ ∅ ↔ (∅ ↑𝑜 𝐵) = ∅))
66	36, 65	syl 17	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → (𝐵 ≠ ∅ ↔ (∅ ↑𝑜 𝐵) = ∅))
67		on0eln0 5780	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝐴 ∈ On → (∅ ∈ 𝐴 ↔ 𝐴 ≠ ∅))
68	34, 67	syl 17	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → (∅ ∈ 𝐴 ↔ 𝐴 ≠ ∅))
69	62, 66, 68	3imtr4d 283	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → (𝐵 ≠ ∅ → ∅ ∈ 𝐴))
70	56, 69	syl5 34	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → (𝑦 ∈ 𝐵 → ∅ ∈ 𝐴))
71	70	imp 445	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) ∧ 𝑦 ∈ 𝐵) → ∅ ∈ 𝐴)
72		fconstmpt 5163	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝐵 × {∅}) = (𝑦 ∈ 𝐵 ↦ ∅)
73	71, 72	fmptd 6385	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → (𝐵 × {∅}):𝐵⟶𝐴)
74		0ex 4790	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ∅ ∈ V
75	74	a1i 11	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝜑 → ∅ ∈ V)
76	3, 75	fczfsuppd 8293	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝜑 → (𝐵 × {∅}) finSupp ∅)
77	76	adantr 481	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → (𝐵 × {∅}) finSupp ∅)
78	1, 2, 3	cantnfs 8563	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝜑 → ((𝐵 × {∅}) ∈ 𝑆 ↔ ((𝐵 × {∅}):𝐵⟶𝐴 ∧ (𝐵 × {∅}) finSupp ∅)))
79	78	adantr 481	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → ((𝐵 × {∅}) ∈ 𝑆 ↔ ((𝐵 × {∅}):𝐵⟶𝐴 ∧ (𝐵 × {∅}) finSupp ∅)))
80	73, 77, 79	mpbir2and 957	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → (𝐵 × {∅}) ∈ 𝑆)
81		eqid 2622	. . . . . . . . . . . . . . . . . . 19 ⊢ seq𝜔((𝑘 ∈ V, 𝑧 ∈ V ↦ (((𝐴 ↑𝑜 (OrdIso( E , ∅)‘𝑘)) ·𝑜 ((𝐵 × {∅})‘(OrdIso( E , ∅)‘𝑘))) +𝑜 𝑧)), ∅) = seq𝜔((𝑘 ∈ V, 𝑧 ∈ V ↦ (((𝐴 ↑𝑜 (OrdIso( E , ∅)‘𝑘)) ·𝑜 ((𝐵 × {∅})‘(OrdIso( E , ∅)‘𝑘))) +𝑜 𝑧)), ∅)
82	1, 34, 36, 55, 80, 81	cantnfval 8565	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → ((𝐴 CNF 𝐵)‘(𝐵 × {∅})) = (seq𝜔((𝑘 ∈ V, 𝑧 ∈ V ↦ (((𝐴 ↑𝑜 (OrdIso( E , ∅)‘𝑘)) ·𝑜 ((𝐵 × {∅})‘(OrdIso( E , ∅)‘𝑘))) +𝑜 𝑧)), ∅)‘dom OrdIso( E , ∅)))
83		we0 5109	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ E We ∅
84		eqid 2622	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ OrdIso( E , ∅) = OrdIso( E , ∅)
85	84	oien 8443	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((∅ ∈ V ∧ E We ∅) → dom OrdIso( E , ∅) ≈ ∅)
86	74, 83, 85	mp2an 708	. . . . . . . . . . . . . . . . . . . . 21 ⊢ dom OrdIso( E , ∅) ≈ ∅
87		en0 8019	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (dom OrdIso( E , ∅) ≈ ∅ ↔ dom OrdIso( E , ∅) = ∅)
88	86, 87	mpbi 220	. . . . . . . . . . . . . . . . . . . 20 ⊢ dom OrdIso( E , ∅) = ∅
89	88	fveq2i 6194	. . . . . . . . . . . . . . . . . . 19 ⊢ (seq𝜔((𝑘 ∈ V, 𝑧 ∈ V ↦ (((𝐴 ↑𝑜 (OrdIso( E , ∅)‘𝑘)) ·𝑜 ((𝐵 × {∅})‘(OrdIso( E , ∅)‘𝑘))) +𝑜 𝑧)), ∅)‘dom OrdIso( E , ∅)) = (seq𝜔((𝑘 ∈ V, 𝑧 ∈ V ↦ (((𝐴 ↑𝑜 (OrdIso( E , ∅)‘𝑘)) ·𝑜 ((𝐵 × {∅})‘(OrdIso( E , ∅)‘𝑘))) +𝑜 𝑧)), ∅)‘∅)
90	81	seqom0g 7551	. . . . . . . . . . . . . . . . . . . 20 ⊢ (∅ ∈ V → (seq𝜔((𝑘 ∈ V, 𝑧 ∈ V ↦ (((𝐴 ↑𝑜 (OrdIso( E , ∅)‘𝑘)) ·𝑜 ((𝐵 × {∅})‘(OrdIso( E , ∅)‘𝑘))) +𝑜 𝑧)), ∅)‘∅) = ∅)
91	74, 90	ax-mp 5	. . . . . . . . . . . . . . . . . . 19 ⊢ (seq𝜔((𝑘 ∈ V, 𝑧 ∈ V ↦ (((𝐴 ↑𝑜 (OrdIso( E , ∅)‘𝑘)) ·𝑜 ((𝐵 × {∅})‘(OrdIso( E , ∅)‘𝑘))) +𝑜 𝑧)), ∅)‘∅) = ∅
92	89, 91	eqtri 2644	. . . . . . . . . . . . . . . . . 18 ⊢ (seq𝜔((𝑘 ∈ V, 𝑧 ∈ V ↦ (((𝐴 ↑𝑜 (OrdIso( E , ∅)‘𝑘)) ·𝑜 ((𝐵 × {∅})‘(OrdIso( E , ∅)‘𝑘))) +𝑜 𝑧)), ∅)‘dom OrdIso( E , ∅)) = ∅
93	82, 92	syl6eq 2672	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → ((𝐴 CNF 𝐵)‘(𝐵 × {∅})) = ∅)
94	14	adantr 481	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → (𝐴 CNF 𝐵):𝑆⟶(𝐴 ↑𝑜 𝐵))
95		ffn 6045	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝐴 CNF 𝐵):𝑆⟶(𝐴 ↑𝑜 𝐵) → (𝐴 CNF 𝐵) Fn 𝑆)
96	94, 95	syl 17	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → (𝐴 CNF 𝐵) Fn 𝑆)
97		fnfvelrn 6356	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝐴 CNF 𝐵) Fn 𝑆 ∧ (𝐵 × {∅}) ∈ 𝑆) → ((𝐴 CNF 𝐵)‘(𝐵 × {∅})) ∈ ran (𝐴 CNF 𝐵))
98	96, 80, 97	syl2anc 693	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → ((𝐴 CNF 𝐵)‘(𝐵 × {∅})) ∈ ran (𝐴 CNF 𝐵))
99	93, 98	eqeltrrd 2702	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → ∅ ∈ ran (𝐴 CNF 𝐵))
100	33, 51, 99	pm2.61ne 2879	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ (𝑡 ∈ (𝐴 ↑𝑜 𝐵) ∧ 𝑡 ⊆ ran (𝐴 CNF 𝐵))) → 𝑡 ∈ ran (𝐴 CNF 𝐵))
101	100	expr 643	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑡 ∈ (𝐴 ↑𝑜 𝐵)) → (𝑡 ⊆ ran (𝐴 CNF 𝐵) → 𝑡 ∈ ran (𝐴 CNF 𝐵)))
102	32, 101	sylbid 230	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑡 ∈ (𝐴 ↑𝑜 𝐵)) → (∀𝑦 ∈ 𝑡 (𝑦 ∈ (𝐴 ↑𝑜 𝐵) → 𝑦 ∈ ran (𝐴 CNF 𝐵)) → 𝑡 ∈ ran (𝐴 CNF 𝐵)))
103	102	ex 450	. . . . . . . . . . . 12 ⊢ (𝜑 → (𝑡 ∈ (𝐴 ↑𝑜 𝐵) → (∀𝑦 ∈ 𝑡 (𝑦 ∈ (𝐴 ↑𝑜 𝐵) → 𝑦 ∈ ran (𝐴 CNF 𝐵)) → 𝑡 ∈ ran (𝐴 CNF 𝐵))))
104	103	com23 86	. . . . . . . . . . 11 ⊢ (𝜑 → (∀𝑦 ∈ 𝑡 (𝑦 ∈ (𝐴 ↑𝑜 𝐵) → 𝑦 ∈ ran (𝐴 CNF 𝐵)) → (𝑡 ∈ (𝐴 ↑𝑜 𝐵) → 𝑡 ∈ ran (𝐴 CNF 𝐵))))
105	104	a2i 14	. . . . . . . . . 10 ⊢ ((𝜑 → ∀𝑦 ∈ 𝑡 (𝑦 ∈ (𝐴 ↑𝑜 𝐵) → 𝑦 ∈ ran (𝐴 CNF 𝐵))) → (𝜑 → (𝑡 ∈ (𝐴 ↑𝑜 𝐵) → 𝑡 ∈ ran (𝐴 CNF 𝐵))))
106	105	a1i 11	. . . . . . . . 9 ⊢ (𝑡 ∈ On → ((𝜑 → ∀𝑦 ∈ 𝑡 (𝑦 ∈ (𝐴 ↑𝑜 𝐵) → 𝑦 ∈ ran (𝐴 CNF 𝐵))) → (𝜑 → (𝑡 ∈ (𝐴 ↑𝑜 𝐵) → 𝑡 ∈ ran (𝐴 CNF 𝐵)))))
107	24, 106	syl5bi 232	. . . . . . . 8 ⊢ (𝑡 ∈ On → (∀𝑦 ∈ 𝑡 (𝜑 → (𝑦 ∈ (𝐴 ↑𝑜 𝐵) → 𝑦 ∈ ran (𝐴 CNF 𝐵))) → (𝜑 → (𝑡 ∈ (𝐴 ↑𝑜 𝐵) → 𝑡 ∈ ran (𝐴 CNF 𝐵)))))
108	23, 107	tfis2 7056	. . . . . . 7 ⊢ (𝑡 ∈ On → (𝜑 → (𝑡 ∈ (𝐴 ↑𝑜 𝐵) → 𝑡 ∈ ran (𝐴 CNF 𝐵))))
109	108	com3l 89	. . . . . 6 ⊢ (𝜑 → (𝑡 ∈ (𝐴 ↑𝑜 𝐵) → (𝑡 ∈ On → 𝑡 ∈ ran (𝐴 CNF 𝐵))))
110	19, 109	mpdd 43	. . . . 5 ⊢ (𝜑 → (𝑡 ∈ (𝐴 ↑𝑜 𝐵) → 𝑡 ∈ ran (𝐴 CNF 𝐵)))
111	110	ssrdv 3609	. . . 4 ⊢ (𝜑 → (𝐴 ↑𝑜 𝐵) ⊆ ran (𝐴 CNF 𝐵))
112	16, 111	eqssd 3620	. . 3 ⊢ (𝜑 → ran (𝐴 CNF 𝐵) = (𝐴 ↑𝑜 𝐵))
113		dffo2 6119	. . 3 ⊢ ((𝐴 CNF 𝐵):𝑆–onto→(𝐴 ↑𝑜 𝐵) ↔ ((𝐴 CNF 𝐵):𝑆⟶(𝐴 ↑𝑜 𝐵) ∧ ran (𝐴 CNF 𝐵) = (𝐴 ↑𝑜 𝐵)))
114	14, 112, 113	sylanbrc 698	. 2 ⊢ (𝜑 → (𝐴 CNF 𝐵):𝑆–onto→(𝐴 ↑𝑜 𝐵))
115	2	adantr 481	. . . . . 6 ⊢ ((𝜑 ∧ ((𝑓 ∈ 𝑆 ∧ 𝑔 ∈ 𝑆) ∧ 𝑓𝑇𝑔)) → 𝐴 ∈ On)
116	3	adantr 481	. . . . . 6 ⊢ ((𝜑 ∧ ((𝑓 ∈ 𝑆 ∧ 𝑔 ∈ 𝑆) ∧ 𝑓𝑇𝑔)) → 𝐵 ∈ On)
117		fveq2 6191	. . . . . . . . . . . 12 ⊢ (𝑧 = 𝑡 → (𝑥‘𝑧) = (𝑥‘𝑡))
118		fveq2 6191	. . . . . . . . . . . 12 ⊢ (𝑧 = 𝑡 → (𝑦‘𝑧) = (𝑦‘𝑡))
119	117, 118	eleq12d 2695	. . . . . . . . . . 11 ⊢ (𝑧 = 𝑡 → ((𝑥‘𝑧) ∈ (𝑦‘𝑧) ↔ (𝑥‘𝑡) ∈ (𝑦‘𝑡)))
120		eleq1 2689	. . . . . . . . . . . . 13 ⊢ (𝑧 = 𝑡 → (𝑧 ∈ 𝑤 ↔ 𝑡 ∈ 𝑤))
121	120	imbi1d 331	. . . . . . . . . . . 12 ⊢ (𝑧 = 𝑡 → ((𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤)) ↔ (𝑡 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤))))
122	121	ralbidv 2986	. . . . . . . . . . 11 ⊢ (𝑧 = 𝑡 → (∀𝑤 ∈ 𝐵 (𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤)) ↔ ∀𝑤 ∈ 𝐵 (𝑡 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤))))
123	119, 122	anbi12d 747	. . . . . . . . . 10 ⊢ (𝑧 = 𝑡 → (((𝑥‘𝑧) ∈ (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤))) ↔ ((𝑥‘𝑡) ∈ (𝑦‘𝑡) ∧ ∀𝑤 ∈ 𝐵 (𝑡 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤)))))
124	123	cbvrexv 3172	. . . . . . . . 9 ⊢ (∃𝑧 ∈ 𝐵 ((𝑥‘𝑧) ∈ (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤))) ↔ ∃𝑡 ∈ 𝐵 ((𝑥‘𝑡) ∈ (𝑦‘𝑡) ∧ ∀𝑤 ∈ 𝐵 (𝑡 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤))))
125		fveq1 6190	. . . . . . . . . . . 12 ⊢ (𝑥 = 𝑢 → (𝑥‘𝑡) = (𝑢‘𝑡))
126		fveq1 6190	. . . . . . . . . . . 12 ⊢ (𝑦 = 𝑣 → (𝑦‘𝑡) = (𝑣‘𝑡))
127		eleq12 2691	. . . . . . . . . . . 12 ⊢ (((𝑥‘𝑡) = (𝑢‘𝑡) ∧ (𝑦‘𝑡) = (𝑣‘𝑡)) → ((𝑥‘𝑡) ∈ (𝑦‘𝑡) ↔ (𝑢‘𝑡) ∈ (𝑣‘𝑡)))
128	125, 126, 127	syl2an 494	. . . . . . . . . . 11 ⊢ ((𝑥 = 𝑢 ∧ 𝑦 = 𝑣) → ((𝑥‘𝑡) ∈ (𝑦‘𝑡) ↔ (𝑢‘𝑡) ∈ (𝑣‘𝑡)))
129		fveq1 6190	. . . . . . . . . . . . . 14 ⊢ (𝑥 = 𝑢 → (𝑥‘𝑤) = (𝑢‘𝑤))
130		fveq1 6190	. . . . . . . . . . . . . 14 ⊢ (𝑦 = 𝑣 → (𝑦‘𝑤) = (𝑣‘𝑤))
131	129, 130	eqeqan12d 2638	. . . . . . . . . . . . 13 ⊢ ((𝑥 = 𝑢 ∧ 𝑦 = 𝑣) → ((𝑥‘𝑤) = (𝑦‘𝑤) ↔ (𝑢‘𝑤) = (𝑣‘𝑤)))
132	131	imbi2d 330	. . . . . . . . . . . 12 ⊢ ((𝑥 = 𝑢 ∧ 𝑦 = 𝑣) → ((𝑡 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤)) ↔ (𝑡 ∈ 𝑤 → (𝑢‘𝑤) = (𝑣‘𝑤))))
133	132	ralbidv 2986	. . . . . . . . . . 11 ⊢ ((𝑥 = 𝑢 ∧ 𝑦 = 𝑣) → (∀𝑤 ∈ 𝐵 (𝑡 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤)) ↔ ∀𝑤 ∈ 𝐵 (𝑡 ∈ 𝑤 → (𝑢‘𝑤) = (𝑣‘𝑤))))
134	128, 133	anbi12d 747	. . . . . . . . . 10 ⊢ ((𝑥 = 𝑢 ∧ 𝑦 = 𝑣) → (((𝑥‘𝑡) ∈ (𝑦‘𝑡) ∧ ∀𝑤 ∈ 𝐵 (𝑡 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤))) ↔ ((𝑢‘𝑡) ∈ (𝑣‘𝑡) ∧ ∀𝑤 ∈ 𝐵 (𝑡 ∈ 𝑤 → (𝑢‘𝑤) = (𝑣‘𝑤)))))
135	134	rexbidv 3052	. . . . . . . . 9 ⊢ ((𝑥 = 𝑢 ∧ 𝑦 = 𝑣) → (∃𝑡 ∈ 𝐵 ((𝑥‘𝑡) ∈ (𝑦‘𝑡) ∧ ∀𝑤 ∈ 𝐵 (𝑡 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤))) ↔ ∃𝑡 ∈ 𝐵 ((𝑢‘𝑡) ∈ (𝑣‘𝑡) ∧ ∀𝑤 ∈ 𝐵 (𝑡 ∈ 𝑤 → (𝑢‘𝑤) = (𝑣‘𝑤)))))
136	124, 135	syl5bb 272	. . . . . . . 8 ⊢ ((𝑥 = 𝑢 ∧ 𝑦 = 𝑣) → (∃𝑧 ∈ 𝐵 ((𝑥‘𝑧) ∈ (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤))) ↔ ∃𝑡 ∈ 𝐵 ((𝑢‘𝑡) ∈ (𝑣‘𝑡) ∧ ∀𝑤 ∈ 𝐵 (𝑡 ∈ 𝑤 → (𝑢‘𝑤) = (𝑣‘𝑤)))))
137	136	cbvopabv 4722	. . . . . . 7 ⊢ {⟨𝑥, 𝑦⟩ ∣ ∃𝑧 ∈ 𝐵 ((𝑥‘𝑧) ∈ (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤)))} = {⟨𝑢, 𝑣⟩ ∣ ∃𝑡 ∈ 𝐵 ((𝑢‘𝑡) ∈ (𝑣‘𝑡) ∧ ∀𝑤 ∈ 𝐵 (𝑡 ∈ 𝑤 → (𝑢‘𝑤) = (𝑣‘𝑤)))}
138	4, 137	eqtri 2644	. . . . . 6 ⊢ 𝑇 = {⟨𝑢, 𝑣⟩ ∣ ∃𝑡 ∈ 𝐵 ((𝑢‘𝑡) ∈ (𝑣‘𝑡) ∧ ∀𝑤 ∈ 𝐵 (𝑡 ∈ 𝑤 → (𝑢‘𝑤) = (𝑣‘𝑤)))}
139		simprll 802	. . . . . 6 ⊢ ((𝜑 ∧ ((𝑓 ∈ 𝑆 ∧ 𝑔 ∈ 𝑆) ∧ 𝑓𝑇𝑔)) → 𝑓 ∈ 𝑆)
140		simprlr 803	. . . . . 6 ⊢ ((𝜑 ∧ ((𝑓 ∈ 𝑆 ∧ 𝑔 ∈ 𝑆) ∧ 𝑓𝑇𝑔)) → 𝑔 ∈ 𝑆)
141		simprr 796	. . . . . 6 ⊢ ((𝜑 ∧ ((𝑓 ∈ 𝑆 ∧ 𝑔 ∈ 𝑆) ∧ 𝑓𝑇𝑔)) → 𝑓𝑇𝑔)
142		eqid 2622	. . . . . 6 ⊢ ∪ {𝑐 ∈ 𝐵 ∣ (𝑓‘𝑐) ∈ (𝑔‘𝑐)} = ∪ {𝑐 ∈ 𝐵 ∣ (𝑓‘𝑐) ∈ (𝑔‘𝑐)}
143		eqid 2622	. . . . . 6 ⊢ OrdIso( E , (𝑔 supp ∅)) = OrdIso( E , (𝑔 supp ∅))
144		eqid 2622	. . . . . 6 ⊢ seq𝜔((𝑘 ∈ V, 𝑡 ∈ V ↦ (((𝐴 ↑𝑜 (OrdIso( E , (𝑔 supp ∅))‘𝑘)) ·𝑜 (𝑔‘(OrdIso( E , (𝑔 supp ∅))‘𝑘))) +𝑜 𝑡)), ∅) = seq𝜔((𝑘 ∈ V, 𝑡 ∈ V ↦ (((𝐴 ↑𝑜 (OrdIso( E , (𝑔 supp ∅))‘𝑘)) ·𝑜 (𝑔‘(OrdIso( E , (𝑔 supp ∅))‘𝑘))) +𝑜 𝑡)), ∅)
145	1, 115, 116, 138, 139, 140, 141, 142, 143, 144	cantnflem1 8586	. . . . 5 ⊢ ((𝜑 ∧ ((𝑓 ∈ 𝑆 ∧ 𝑔 ∈ 𝑆) ∧ 𝑓𝑇𝑔)) → ((𝐴 CNF 𝐵)‘𝑓) ∈ ((𝐴 CNF 𝐵)‘𝑔))
146		fvex 6201	. . . . . 6 ⊢ ((𝐴 CNF 𝐵)‘𝑔) ∈ V
147	146	epelc 5031	. . . . 5 ⊢ (((𝐴 CNF 𝐵)‘𝑓) E ((𝐴 CNF 𝐵)‘𝑔) ↔ ((𝐴 CNF 𝐵)‘𝑓) ∈ ((𝐴 CNF 𝐵)‘𝑔))
148	145, 147	sylibr 224	. . . 4 ⊢ ((𝜑 ∧ ((𝑓 ∈ 𝑆 ∧ 𝑔 ∈ 𝑆) ∧ 𝑓𝑇𝑔)) → ((𝐴 CNF 𝐵)‘𝑓) E ((𝐴 CNF 𝐵)‘𝑔))
149	148	expr 643	. . 3 ⊢ ((𝜑 ∧ (𝑓 ∈ 𝑆 ∧ 𝑔 ∈ 𝑆)) → (𝑓𝑇𝑔 → ((𝐴 CNF 𝐵)‘𝑓) E ((𝐴 CNF 𝐵)‘𝑔)))
150	149	ralrimivva 2971	. 2 ⊢ (𝜑 → ∀𝑓 ∈ 𝑆 ∀𝑔 ∈ 𝑆 (𝑓𝑇𝑔 → ((𝐴 CNF 𝐵)‘𝑓) E ((𝐴 CNF 𝐵)‘𝑔)))
151		soisoi 6578	. 2 ⊢ (((𝑇 Or 𝑆 ∧ E Po (𝐴 ↑𝑜 𝐵)) ∧ ((𝐴 CNF 𝐵):𝑆–onto→(𝐴 ↑𝑜 𝐵) ∧ ∀𝑓 ∈ 𝑆 ∀𝑔 ∈ 𝑆 (𝑓𝑇𝑔 → ((𝐴 CNF 𝐵)‘𝑓) E ((𝐴 CNF 𝐵)‘𝑔)))) → (𝐴 CNF 𝐵) Isom 𝑇, E (𝑆, (𝐴 ↑𝑜 𝐵)))
152	5, 13, 114, 150, 151	syl22anc 1327	1 ⊢ (𝜑 → (𝐴 CNF 𝐵) Isom 𝑇, E (𝑆, (𝐴 ↑𝑜 𝐵)))

Syntax hints:   → wi 4   ↔ wb 196   ∧ wa 384   = wceq 1483   ∈ wcel 1990   ≠ wne 2794  ∀wral 2912  ∃wrex 2913  {crab 2916  Vcvv 3200   ⊆ wss 3574  ∅c0 3915  {csn 4177  ⟨cop 4183  ∪ cuni 4436  ∩ cint 4475   class class class wbr 4653  {copab 4712   E cep 5028   Po wpo 5033   Or wor 5034   We wwe 5072   × cxp 5112  dom cdm 5114  ran crn 5115  Ord word 5722  Oncon0 5723  ℩cio 5849   Fn wfn 5883  ⟶wf 5884  –onto→wfo 5886  ‘cfv 5888   Isom wiso 5889  (class class class)co 6650   ↦ cmpt2 6652  1^st c1st 7166  2^nd c2nd 7167   supp csupp 7295  seq_𝜔cseqom 7542   +_𝑜 coa 7557   ·_𝑜 comu 7558   ↑_𝑜 coe 7559   ≈ cen 7952   finSupp cfsupp 8275  OrdIsocoi 8414   CNF ccnf 8558

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-rep 4771  ax-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906  ax-un 6949

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1038  df-3an 1039  df-tru 1486  df-fal 1489  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-ral 2917  df-rex 2918  df-reu 2919  df-rmo 2920  df-rab 2921  df-v 3202  df-sbc 3436  df-csb 3534  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-pss 3590  df-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-tp 4182  df-op 4184  df-uni 4437  df-int 4476  df-iun 4522  df-br 4654  df-opab 4713  df-mpt 4730  df-tr 4753  df-id 5024  df-eprel 5029  df-po 5035  df-so 5036  df-fr 5073  df-se 5074  df-we 5075  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-rn 5125  df-res 5126  df-ima 5127  df-pred 5680  df-ord 5726  df-on 5727  df-lim 5728  df-suc 5729  df-iota 5851  df-fun 5890  df-fn 5891  df-f 5892  df-f1 5893  df-fo 5894  df-f1o 5895  df-fv 5896  df-isom 5897  df-riota 6611  df-ov 6653  df-oprab 6654  df-mpt2 6655  df-om 7066  df-1st 7168  df-2nd 7169  df-supp 7296  df-wrecs 7407  df-recs 7468  df-rdg 7506  df-seqom 7543  df-1o 7560  df-2o 7561  df-oadd 7564  df-omul 7565  df-oexp 7566  df-er 7742  df-map 7859  df-en 7956  df-dom 7957  df-sdom 7958  df-fin 7959  df-fsupp 8276  df-oi 8415  df-cnf 8559

This theorem is referenced by:  oemapwe  8591  cantnffval2  8592  cantnff1o  8593