Theorem cantnf2 43314

Description: For every ordinal, 𝐴, there is a an ordinal exponent 𝑏 such that 𝐴 is less than (ω ↑_o 𝑏) and for every ordinal at least as large as 𝑏 there is a unique Cantor normal form, 𝑓, with zeros for all the unnecessary higher terms, that sums to 𝐴. Theorem 5.3 of [Schloeder] p. 16. (Contributed by RP, 3-Feb-2025.)

Assertion

Ref	Expression
cantnf2	⊢ (𝐴 ∈ On → ∃𝑏 ∈ On ∀𝑐 ∈ (On ∖ 𝑏)∃!𝑓 ∈ dom (ω CNF 𝑐)((𝐴 ∈ (ω ↑o 𝑏) ∧ 𝑓 finSupp ∅) ∧ (((ω CNF 𝑏)‘(𝑓 ↾ 𝑏)) = 𝐴 ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴)))

Distinct variable group:   𝐴,𝑏,𝑐,𝑓

Proof of Theorem cantnf2

Dummy variables 𝑎 𝑑 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		onexoegt 43233	. 2 ⊢ (𝐴 ∈ On → ∃𝑏 ∈ On 𝐴 ∈ (ω ↑o 𝑏))
2		eldif 3924	. . . . . . 7 ⊢ (𝑐 ∈ (On ∖ 𝑏) ↔ (𝑐 ∈ On ∧ ¬ 𝑐 ∈ 𝑏))
3		simp2 1137	. . . . . . . . . 10 ⊢ ((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) → 𝑏 ∈ On)
4		pm3.2 469	. . . . . . . . . 10 ⊢ (𝑏 ∈ On → (𝑐 ∈ On → (𝑏 ∈ On ∧ 𝑐 ∈ On)))
5	3, 4	syl 17	. . . . . . . . 9 ⊢ ((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) → (𝑐 ∈ On → (𝑏 ∈ On ∧ 𝑐 ∈ On)))
6		ontri1 6366	. . . . . . . . 9 ⊢ ((𝑏 ∈ On ∧ 𝑐 ∈ On) → (𝑏 ⊆ 𝑐 ↔ ¬ 𝑐 ∈ 𝑏))
7	5, 6	syl6 35	. . . . . . . 8 ⊢ ((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) → (𝑐 ∈ On → (𝑏 ⊆ 𝑐 ↔ ¬ 𝑐 ∈ 𝑏)))
8	7	pm5.32d 577	. . . . . . 7 ⊢ ((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) → ((𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐) ↔ (𝑐 ∈ On ∧ ¬ 𝑐 ∈ 𝑏)))
9	2, 8	bitr4id 290	. . . . . 6 ⊢ ((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) → (𝑐 ∈ (On ∖ 𝑏) ↔ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)))
10		simplr 768	. . . . . . . . . . . 12 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑎 = 𝐴) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) → 𝑎 = 𝐴)
11	10	breq2d 5119	. . . . . . . . . . 11 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑎 = 𝐴) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) → (𝑓(ω CNF 𝑐)𝑎 ↔ 𝑓(ω CNF 𝑐)𝐴))
12		eqid 2729	. . . . . . . . . . . . . 14 ⊢ dom (ω CNF 𝑐) = dom (ω CNF 𝑐)
13		omelon 9599	. . . . . . . . . . . . . . 15 ⊢ ω ∈ On
14	13	a1i 11	. . . . . . . . . . . . . 14 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑎 = 𝐴) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) → ω ∈ On)
15		simprl 770	. . . . . . . . . . . . . . 15 ⊢ (((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) → 𝑐 ∈ On)
16	15	ad2antrr 726	. . . . . . . . . . . . . 14 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑎 = 𝐴) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) → 𝑐 ∈ On)
17	12, 14, 16	cantnff1o 9649	. . . . . . . . . . . . 13 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑎 = 𝐴) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) → (ω CNF 𝑐):dom (ω CNF 𝑐)–1-1-onto→(ω ↑o 𝑐))
18		f1ofun 6802	. . . . . . . . . . . . 13 ⊢ ((ω CNF 𝑐):dom (ω CNF 𝑐)–1-1-onto→(ω ↑o 𝑐) → Fun (ω CNF 𝑐))
19	17, 18	syl 17	. . . . . . . . . . . 12 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑎 = 𝐴) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) → Fun (ω CNF 𝑐))
20		funbrfvb 6914	. . . . . . . . . . . 12 ⊢ ((Fun (ω CNF 𝑐) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) → (((ω CNF 𝑐)‘𝑓) = 𝐴 ↔ 𝑓(ω CNF 𝑐)𝐴))
21	19, 20	sylancom 588	. . . . . . . . . . 11 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑎 = 𝐴) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) → (((ω CNF 𝑐)‘𝑓) = 𝐴 ↔ 𝑓(ω CNF 𝑐)𝐴))
22	11, 21	bitr4d 282	. . . . . . . . . 10 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑎 = 𝐴) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) → (𝑓(ω CNF 𝑐)𝑎 ↔ ((ω CNF 𝑐)‘𝑓) = 𝐴))
23	22	reubidva 3370	. . . . . . . . 9 ⊢ ((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑎 = 𝐴) → (∃!𝑓 ∈ dom (ω CNF 𝑐)𝑓(ω CNF 𝑐)𝑎 ↔ ∃!𝑓 ∈ dom (ω CNF 𝑐)((ω CNF 𝑐)‘𝑓) = 𝐴))
24		simpl2 1193	. . . . . . . . . . . . . 14 ⊢ (((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) → 𝑏 ∈ On)
25	13	a1i 11	. . . . . . . . . . . . . 14 ⊢ (((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) → ω ∈ On)
26	24, 15, 25	3jca 1128	. . . . . . . . . . . . 13 ⊢ (((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) → (𝑏 ∈ On ∧ 𝑐 ∈ On ∧ ω ∈ On))
27		peano1 7865	. . . . . . . . . . . . 13 ⊢ ∅ ∈ ω
28	26, 27	jctir 520	. . . . . . . . . . . 12 ⊢ (((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) → ((𝑏 ∈ On ∧ 𝑐 ∈ On ∧ ω ∈ On) ∧ ∅ ∈ ω))
29		simprr 772	. . . . . . . . . . . 12 ⊢ (((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) → 𝑏 ⊆ 𝑐)
30		oewordi 8555	. . . . . . . . . . . 12 ⊢ (((𝑏 ∈ On ∧ 𝑐 ∈ On ∧ ω ∈ On) ∧ ∅ ∈ ω) → (𝑏 ⊆ 𝑐 → (ω ↑o 𝑏) ⊆ (ω ↑o 𝑐)))
31	28, 29, 30	sylc 65	. . . . . . . . . . 11 ⊢ (((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) → (ω ↑o 𝑏) ⊆ (ω ↑o 𝑐))
32		simpl3 1194	. . . . . . . . . . 11 ⊢ (((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) → 𝐴 ∈ (ω ↑o 𝑏))
33	31, 32	sseldd 3947	. . . . . . . . . 10 ⊢ (((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) → 𝐴 ∈ (ω ↑o 𝑐))
34	12, 25, 15	cantnff1o 9649	. . . . . . . . . . 11 ⊢ (((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) → (ω CNF 𝑐):dom (ω CNF 𝑐)–1-1-onto→(ω ↑o 𝑐))
35		dff1o5 6809	. . . . . . . . . . . 12 ⊢ ((ω CNF 𝑐):dom (ω CNF 𝑐)–1-1-onto→(ω ↑o 𝑐) ↔ ((ω CNF 𝑐):dom (ω CNF 𝑐)–1-1→(ω ↑o 𝑐) ∧ ran (ω CNF 𝑐) = (ω ↑o 𝑐)))
36		simpr 484	. . . . . . . . . . . 12 ⊢ (((ω CNF 𝑐):dom (ω CNF 𝑐)–1-1→(ω ↑o 𝑐) ∧ ran (ω CNF 𝑐) = (ω ↑o 𝑐)) → ran (ω CNF 𝑐) = (ω ↑o 𝑐))
37	35, 36	sylbi 217	. . . . . . . . . . 11 ⊢ ((ω CNF 𝑐):dom (ω CNF 𝑐)–1-1-onto→(ω ↑o 𝑐) → ran (ω CNF 𝑐) = (ω ↑o 𝑐))
38	34, 37	syl 17	. . . . . . . . . 10 ⊢ (((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) → ran (ω CNF 𝑐) = (ω ↑o 𝑐))
39	33, 38	eleqtrrd 2831	. . . . . . . . 9 ⊢ (((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) → 𝐴 ∈ ran (ω CNF 𝑐))
40		dff1o2 6805	. . . . . . . . . . . 12 ⊢ ((ω CNF 𝑐):dom (ω CNF 𝑐)–1-1-onto→(ω ↑o 𝑐) ↔ ((ω CNF 𝑐) Fn dom (ω CNF 𝑐) ∧ Fun ◡(ω CNF 𝑐) ∧ ran (ω CNF 𝑐) = (ω ↑o 𝑐)))
41		simp2 1137	. . . . . . . . . . . 12 ⊢ (((ω CNF 𝑐) Fn dom (ω CNF 𝑐) ∧ Fun ◡(ω CNF 𝑐) ∧ ran (ω CNF 𝑐) = (ω ↑o 𝑐)) → Fun ◡(ω CNF 𝑐))
42	40, 41	sylbi 217	. . . . . . . . . . 11 ⊢ ((ω CNF 𝑐):dom (ω CNF 𝑐)–1-1-onto→(ω ↑o 𝑐) → Fun ◡(ω CNF 𝑐))
43	34, 42	syl 17	. . . . . . . . . 10 ⊢ (((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) → Fun ◡(ω CNF 𝑐))
44		funcnv3 6586	. . . . . . . . . 10 ⊢ (Fun ◡(ω CNF 𝑐) ↔ ∀𝑎 ∈ ran (ω CNF 𝑐)∃!𝑓 ∈ dom (ω CNF 𝑐)𝑓(ω CNF 𝑐)𝑎)
45	43, 44	sylib 218	. . . . . . . . 9 ⊢ (((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) → ∀𝑎 ∈ ran (ω CNF 𝑐)∃!𝑓 ∈ dom (ω CNF 𝑐)𝑓(ω CNF 𝑐)𝑎)
46	23, 39, 45	rspcdv2 3583	. . . . . . . 8 ⊢ (((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) → ∃!𝑓 ∈ dom (ω CNF 𝑐)((ω CNF 𝑐)‘𝑓) = 𝐴)
47	32	ad2antrr 726	. . . . . . . . . . . . 13 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → 𝐴 ∈ (ω ↑o 𝑏))
48		simplr 768	. . . . . . . . . . . . . . 15 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → 𝑓 ∈ dom (ω CNF 𝑐))
49	13	a1i 11	. . . . . . . . . . . . . . . 16 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → ω ∈ On)
50	15	ad2antrr 726	. . . . . . . . . . . . . . . 16 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → 𝑐 ∈ On)
51	12, 49, 50	cantnfs 9619	. . . . . . . . . . . . . . 15 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → (𝑓 ∈ dom (ω CNF 𝑐) ↔ (𝑓:𝑐⟶ω ∧ 𝑓 finSupp ∅)))
52	48, 51	mpbid 232	. . . . . . . . . . . . . 14 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → (𝑓:𝑐⟶ω ∧ 𝑓 finSupp ∅))
53		simpr 484	. . . . . . . . . . . . . 14 ⊢ ((𝑓:𝑐⟶ω ∧ 𝑓 finSupp ∅) → 𝑓 finSupp ∅)
54	52, 53	syl 17	. . . . . . . . . . . . 13 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → 𝑓 finSupp ∅)
55		eqid 2729	. . . . . . . . . . . . . . . 16 ⊢ dom (ω CNF 𝑏) = dom (ω CNF 𝑏)
56	24	ad2antrr 726	. . . . . . . . . . . . . . . 16 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → 𝑏 ∈ On)
57	29	ad2antrr 726	. . . . . . . . . . . . . . . 16 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → 𝑏 ⊆ 𝑐)
58		simpr 484	. . . . . . . . . . . . . . . . . . 19 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → ((ω CNF 𝑐)‘𝑓) = 𝐴)
59	58, 47	eqeltrd 2828	. . . . . . . . . . . . . . . . . 18 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → ((ω CNF 𝑐)‘𝑓) ∈ (ω ↑o 𝑏))
60		1onn 8604	. . . . . . . . . . . . . . . . . . . . 21 ⊢ 1o ∈ ω
61		ondif2 8466	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (ω ∈ (On ∖ 2o) ↔ (ω ∈ On ∧ 1o ∈ ω))
62	13, 60, 61	mpbir2an 711	. . . . . . . . . . . . . . . . . . . 20 ⊢ ω ∈ (On ∖ 2o)
63	62	a1i 11	. . . . . . . . . . . . . . . . . . 19 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → ω ∈ (On ∖ 2o))
64		cantnfresb 43313	. . . . . . . . . . . . . . . . . . 19 ⊢ (((ω ∈ (On ∖ 2o) ∧ 𝑐 ∈ On) ∧ (𝑏 ∈ On ∧ 𝑓 ∈ dom (ω CNF 𝑐))) → (((ω CNF 𝑐)‘𝑓) ∈ (ω ↑o 𝑏) ↔ ∀𝑑 ∈ (𝑐 ∖ 𝑏)(𝑓‘𝑑) = ∅))
65	63, 50, 56, 48, 64	syl22anc 838	. . . . . . . . . . . . . . . . . 18 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → (((ω CNF 𝑐)‘𝑓) ∈ (ω ↑o 𝑏) ↔ ∀𝑑 ∈ (𝑐 ∖ 𝑏)(𝑓‘𝑑) = ∅))
66	59, 65	mpbid 232	. . . . . . . . . . . . . . . . 17 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → ∀𝑑 ∈ (𝑐 ∖ 𝑏)(𝑓‘𝑑) = ∅)
67	66	r19.21bi 3229	. . . . . . . . . . . . . . . 16 ⊢ ((((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) ∧ 𝑑 ∈ (𝑐 ∖ 𝑏)) → (𝑓‘𝑑) = ∅)
68	27	a1i 11	. . . . . . . . . . . . . . . 16 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → ∅ ∈ ω)
69		simpllr 775	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) ∧ 𝑑 ∈ 𝑏) → 𝑓 ∈ dom (ω CNF 𝑐))
70	13	a1i 11	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) ∧ 𝑑 ∈ 𝑏) → ω ∈ On)
71	15	adantr 480	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) → 𝑐 ∈ On)
72	71	ad2antrr 726	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) ∧ 𝑑 ∈ 𝑏) → 𝑐 ∈ On)
73	12, 70, 72	cantnfs 9619	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) ∧ 𝑑 ∈ 𝑏) → (𝑓 ∈ dom (ω CNF 𝑐) ↔ (𝑓:𝑐⟶ω ∧ 𝑓 finSupp ∅)))
74	69, 73	mpbid 232	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) ∧ 𝑑 ∈ 𝑏) → (𝑓:𝑐⟶ω ∧ 𝑓 finSupp ∅))
75	74	simpld 494	. . . . . . . . . . . . . . . . . . 19 ⊢ ((((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) ∧ 𝑑 ∈ 𝑏) → 𝑓:𝑐⟶ω)
76	57	sselda 3946	. . . . . . . . . . . . . . . . . . 19 ⊢ ((((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) ∧ 𝑑 ∈ 𝑏) → 𝑑 ∈ 𝑐)
77	75, 76	ffvelcdmd 7057	. . . . . . . . . . . . . . . . . 18 ⊢ ((((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) ∧ 𝑑 ∈ 𝑏) → (𝑓‘𝑑) ∈ ω)
78	77	fmpttd 7087	. . . . . . . . . . . . . . . . 17 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → (𝑑 ∈ 𝑏 ↦ (𝑓‘𝑑)):𝑏⟶ω)
79	12, 25, 15	cantnfs 9619	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) → (𝑓 ∈ dom (ω CNF 𝑐) ↔ (𝑓:𝑐⟶ω ∧ 𝑓 finSupp ∅)))
80	79	simprbda 498	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) → 𝑓:𝑐⟶ω)
81	80	adantr 480	. . . . . . . . . . . . . . . . . . 19 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → 𝑓:𝑐⟶ω)
82	81, 57	feqresmpt 6930	. . . . . . . . . . . . . . . . . 18 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → (𝑓 ↾ 𝑏) = (𝑑 ∈ 𝑏 ↦ (𝑓‘𝑑)))
83	54, 68	fsuppres 9344	. . . . . . . . . . . . . . . . . 18 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → (𝑓 ↾ 𝑏) finSupp ∅)
84	82, 83	eqbrtrrd 5131	. . . . . . . . . . . . . . . . 17 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → (𝑑 ∈ 𝑏 ↦ (𝑓‘𝑑)) finSupp ∅)
85	55, 49, 56	cantnfs 9619	. . . . . . . . . . . . . . . . 17 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → ((𝑑 ∈ 𝑏 ↦ (𝑓‘𝑑)) ∈ dom (ω CNF 𝑏) ↔ ((𝑑 ∈ 𝑏 ↦ (𝑓‘𝑑)):𝑏⟶ω ∧ (𝑑 ∈ 𝑏 ↦ (𝑓‘𝑑)) finSupp ∅)))
86	78, 84, 85	mpbir2and 713	. . . . . . . . . . . . . . . 16 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → (𝑑 ∈ 𝑏 ↦ (𝑓‘𝑑)) ∈ dom (ω CNF 𝑏))
87	55, 49, 56, 50, 57, 67, 68, 12, 86	cantnfres 9630	. . . . . . . . . . . . . . 15 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → ((ω CNF 𝑏)‘(𝑑 ∈ 𝑏 ↦ (𝑓‘𝑑))) = ((ω CNF 𝑐)‘(𝑑 ∈ 𝑐 ↦ (𝑓‘𝑑))))
88	82	fveq2d 6862	. . . . . . . . . . . . . . 15 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → ((ω CNF 𝑏)‘(𝑓 ↾ 𝑏)) = ((ω CNF 𝑏)‘(𝑑 ∈ 𝑏 ↦ (𝑓‘𝑑))))
89	81	feqmptd 6929	. . . . . . . . . . . . . . . 16 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → 𝑓 = (𝑑 ∈ 𝑐 ↦ (𝑓‘𝑑)))
90	89	fveq2d 6862	. . . . . . . . . . . . . . 15 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → ((ω CNF 𝑐)‘𝑓) = ((ω CNF 𝑐)‘(𝑑 ∈ 𝑐 ↦ (𝑓‘𝑑))))
91	87, 88, 90	3eqtr4d 2774	. . . . . . . . . . . . . 14 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → ((ω CNF 𝑏)‘(𝑓 ↾ 𝑏)) = ((ω CNF 𝑐)‘𝑓))
92	91, 58	eqtrd 2764	. . . . . . . . . . . . 13 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → ((ω CNF 𝑏)‘(𝑓 ↾ 𝑏)) = 𝐴)
93	47, 54, 92	3jca 1128	. . . . . . . . . . . 12 ⊢ (((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) → (𝐴 ∈ (ω ↑o 𝑏) ∧ 𝑓 finSupp ∅ ∧ ((ω CNF 𝑏)‘(𝑓 ↾ 𝑏)) = 𝐴))
94	93	ex 412	. . . . . . . . . . 11 ⊢ ((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) → (((ω CNF 𝑐)‘𝑓) = 𝐴 → (𝐴 ∈ (ω ↑o 𝑏) ∧ 𝑓 finSupp ∅ ∧ ((ω CNF 𝑏)‘(𝑓 ↾ 𝑏)) = 𝐴)))
95	94	pm4.71rd 562	. . . . . . . . . 10 ⊢ ((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) → (((ω CNF 𝑐)‘𝑓) = 𝐴 ↔ ((𝐴 ∈ (ω ↑o 𝑏) ∧ 𝑓 finSupp ∅ ∧ ((ω CNF 𝑏)‘(𝑓 ↾ 𝑏)) = 𝐴) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴)))
96		3an4anass 1104	. . . . . . . . . 10 ⊢ (((𝐴 ∈ (ω ↑o 𝑏) ∧ 𝑓 finSupp ∅ ∧ ((ω CNF 𝑏)‘(𝑓 ↾ 𝑏)) = 𝐴) ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴) ↔ ((𝐴 ∈ (ω ↑o 𝑏) ∧ 𝑓 finSupp ∅) ∧ (((ω CNF 𝑏)‘(𝑓 ↾ 𝑏)) = 𝐴 ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴)))
97	95, 96	bitrdi 287	. . . . . . . . 9 ⊢ ((((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) ∧ 𝑓 ∈ dom (ω CNF 𝑐)) → (((ω CNF 𝑐)‘𝑓) = 𝐴 ↔ ((𝐴 ∈ (ω ↑o 𝑏) ∧ 𝑓 finSupp ∅) ∧ (((ω CNF 𝑏)‘(𝑓 ↾ 𝑏)) = 𝐴 ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴))))
98	97	reubidva 3370	. . . . . . . 8 ⊢ (((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) → (∃!𝑓 ∈ dom (ω CNF 𝑐)((ω CNF 𝑐)‘𝑓) = 𝐴 ↔ ∃!𝑓 ∈ dom (ω CNF 𝑐)((𝐴 ∈ (ω ↑o 𝑏) ∧ 𝑓 finSupp ∅) ∧ (((ω CNF 𝑏)‘(𝑓 ↾ 𝑏)) = 𝐴 ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴))))
99	46, 98	mpbid 232	. . . . . . 7 ⊢ (((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) ∧ (𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐)) → ∃!𝑓 ∈ dom (ω CNF 𝑐)((𝐴 ∈ (ω ↑o 𝑏) ∧ 𝑓 finSupp ∅) ∧ (((ω CNF 𝑏)‘(𝑓 ↾ 𝑏)) = 𝐴 ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴)))
100	99	ex 412	. . . . . 6 ⊢ ((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) → ((𝑐 ∈ On ∧ 𝑏 ⊆ 𝑐) → ∃!𝑓 ∈ dom (ω CNF 𝑐)((𝐴 ∈ (ω ↑o 𝑏) ∧ 𝑓 finSupp ∅) ∧ (((ω CNF 𝑏)‘(𝑓 ↾ 𝑏)) = 𝐴 ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴))))
101	9, 100	sylbid 240	. . . . 5 ⊢ ((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) → (𝑐 ∈ (On ∖ 𝑏) → ∃!𝑓 ∈ dom (ω CNF 𝑐)((𝐴 ∈ (ω ↑o 𝑏) ∧ 𝑓 finSupp ∅) ∧ (((ω CNF 𝑏)‘(𝑓 ↾ 𝑏)) = 𝐴 ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴))))
102	101	ralrimiv 3124	. . . 4 ⊢ ((𝐴 ∈ On ∧ 𝑏 ∈ On ∧ 𝐴 ∈ (ω ↑o 𝑏)) → ∀𝑐 ∈ (On ∖ 𝑏)∃!𝑓 ∈ dom (ω CNF 𝑐)((𝐴 ∈ (ω ↑o 𝑏) ∧ 𝑓 finSupp ∅) ∧ (((ω CNF 𝑏)‘(𝑓 ↾ 𝑏)) = 𝐴 ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴)))
103	102	3exp 1119	. . 3 ⊢ (𝐴 ∈ On → (𝑏 ∈ On → (𝐴 ∈ (ω ↑o 𝑏) → ∀𝑐 ∈ (On ∖ 𝑏)∃!𝑓 ∈ dom (ω CNF 𝑐)((𝐴 ∈ (ω ↑o 𝑏) ∧ 𝑓 finSupp ∅) ∧ (((ω CNF 𝑏)‘(𝑓 ↾ 𝑏)) = 𝐴 ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴)))))
104	103	reximdvai 3144	. 2 ⊢ (𝐴 ∈ On → (∃𝑏 ∈ On 𝐴 ∈ (ω ↑o 𝑏) → ∃𝑏 ∈ On ∀𝑐 ∈ (On ∖ 𝑏)∃!𝑓 ∈ dom (ω CNF 𝑐)((𝐴 ∈ (ω ↑o 𝑏) ∧ 𝑓 finSupp ∅) ∧ (((ω CNF 𝑏)‘(𝑓 ↾ 𝑏)) = 𝐴 ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴))))
105	1, 104	mpd 15	1 ⊢ (𝐴 ∈ On → ∃𝑏 ∈ On ∀𝑐 ∈ (On ∖ 𝑏)∃!𝑓 ∈ dom (ω CNF 𝑐)((𝐴 ∈ (ω ↑o 𝑏) ∧ 𝑓 finSupp ∅) ∧ (((ω CNF 𝑏)‘(𝑓 ↾ 𝑏)) = 𝐴 ∧ ((ω CNF 𝑐)‘𝑓) = 𝐴)))

Syntax hints:  ¬ wn 3   → wi 4   ↔ wb 206   ∧ wa 395   ∧ w3a 1086   = wceq 1540   ∈ wcel 2109  ∀wral 3044  ∃wrex 3053  ∃!wreu 3352   ∖ cdif 3911   ⊆ wss 3914  ∅c0 4296   class class class wbr 5107   ↦ cmpt 5188  ^◡ccnv 5637  dom cdm 5638  ran crn 5639   ↾ cres 5640  Oncon0 6332  Fun wfun 6505   Fn wfn 6506  ⟶wf 6507  –1-1→wf1 6508  –1-1-onto→wf1o 6510  ‘cfv 6511  (class class class)co 7387  ωcom 7842  1_oc1o 8427  2_oc2o 8428   ↑_o coe 8433   finSupp cfsupp 9312   CNF ccnf 9614

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2008  ax-8 2111  ax-9 2119  ax-10 2142  ax-11 2158  ax-12 2178  ax-ext 2701  ax-rep 5234  ax-sep 5251  ax-nul 5261  ax-pow 5320  ax-pr 5387  ax-un 7711  ax-inf2 9594

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2066  df-mo 2533  df-eu 2562  df-clab 2708  df-cleq 2721  df-clel 2803  df-nfc 2878  df-ne 2926  df-ral 3045  df-rex 3054  df-rmo 3354  df-reu 3355  df-rab 3406  df-v 3449  df-sbc 3754  df-csb 3863  df-dif 3917  df-un 3919  df-in 3921  df-ss 3931  df-pss 3934  df-nul 4297  df-if 4489  df-pw 4565  df-sn 4590  df-pr 4592  df-op 4596  df-ot 4598  df-uni 4872  df-int 4911  df-iun 4957  df-br 5108  df-opab 5170  df-mpt 5189  df-tr 5215  df-id 5533  df-eprel 5538  df-po 5546  df-so 5547  df-fr 5591  df-se 5592  df-we 5593  df-xp 5644  df-rel 5645  df-cnv 5646  df-co 5647  df-dm 5648  df-rn 5649  df-res 5650  df-ima 5651  df-pred 6274  df-ord 6335  df-on 6336  df-lim 6337  df-suc 6338  df-iota 6464  df-fun 6513  df-fn 6514  df-f 6515  df-f1 6516  df-fo 6517  df-f1o 6518  df-fv 6519  df-isom 6520  df-riota 7344  df-ov 7390  df-oprab 7391  df-mpo 7392  df-om 7843  df-1st 7968  df-2nd 7969  df-supp 8140  df-frecs 8260  df-wrecs 8291  df-recs 8340  df-rdg 8378  df-seqom 8416  df-1o 8434  df-2o 8435  df-oadd 8438  df-omul 8439  df-oexp 8440  df-er 8671  df-map 8801  df-en 8919  df-dom 8920  df-sdom 8921  df-fin 8922  df-fsupp 9313  df-oi 9463  df-cnf 9615

This theorem is referenced by: (None)