Theorem fseqenlem2 9436

Description: Lemma for fseqen 9438. (Contributed by Mario Carneiro, 17-May-2015.)

Hypotheses

Ref	Expression
fseqenlem.a	⊢ (𝜑 → 𝐴 ∈ 𝑉)
fseqenlem.b	⊢ (𝜑 → 𝐵 ∈ 𝐴)
fseqenlem.f	⊢ (𝜑 → 𝐹:(𝐴 × 𝐴)–1-1-onto→𝐴)
fseqenlem.g	⊢ 𝐺 = seqω((𝑛 ∈ V, 𝑓 ∈ V ↦ (𝑥 ∈ (𝐴 ↑m suc 𝑛) ↦ ((𝑓‘(𝑥 ↾ 𝑛))𝐹(𝑥‘𝑛)))), {⟨∅, 𝐵⟩})
fseqenlem.k	⊢ 𝐾 = (𝑦 ∈ ∪ 𝑘 ∈ ω (𝐴 ↑m 𝑘) ↦ ⟨dom 𝑦, ((𝐺‘dom 𝑦)‘𝑦)⟩)

Assertion

Ref	Expression
fseqenlem2	⊢ (𝜑 → 𝐾:∪ 𝑘 ∈ ω (𝐴 ↑m 𝑘)–1-1→(ω × 𝐴))

Distinct variable groups:   𝑦,𝐵   𝑓,𝑛,𝑥,𝐹   𝑦,𝑘,𝐺   𝑓,𝑘,𝑦,𝐴,𝑛,𝑥   𝜑,𝑘,𝑛,𝑥,𝑦

Allowed substitution hints:   𝜑(𝑓)   𝐵(𝑥,𝑓,𝑘,𝑛)   𝐹(𝑦,𝑘)   𝐺(𝑥,𝑓,𝑛)   𝐾(𝑥,𝑦,𝑓,𝑘,𝑛)   𝑉(𝑥,𝑦,𝑓,𝑘,𝑛)

Proof of Theorem fseqenlem2

Dummy variables 𝑧 𝑤 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		eliun 4885	. . . . 5 ⊢ (𝑦 ∈ ∪ 𝑘 ∈ ω (𝐴 ↑m 𝑘) ↔ ∃𝑘 ∈ ω 𝑦 ∈ (𝐴 ↑m 𝑘))
2		elmapi 8411	. . . . . . . . . 10 ⊢ (𝑦 ∈ (𝐴 ↑m 𝑘) → 𝑦:𝑘⟶𝐴)
3	2	ad2antll 728	. . . . . . . . 9 ⊢ ((𝜑 ∧ (𝑘 ∈ ω ∧ 𝑦 ∈ (𝐴 ↑m 𝑘))) → 𝑦:𝑘⟶𝐴)
4	3	fdmd 6497	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑘 ∈ ω ∧ 𝑦 ∈ (𝐴 ↑m 𝑘))) → dom 𝑦 = 𝑘)
5		simprl 770	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑘 ∈ ω ∧ 𝑦 ∈ (𝐴 ↑m 𝑘))) → 𝑘 ∈ ω)
6	4, 5	eqeltrd 2890	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑘 ∈ ω ∧ 𝑦 ∈ (𝐴 ↑m 𝑘))) → dom 𝑦 ∈ ω)
7	4	fveq2d 6649	. . . . . . . . 9 ⊢ ((𝜑 ∧ (𝑘 ∈ ω ∧ 𝑦 ∈ (𝐴 ↑m 𝑘))) → (𝐺‘dom 𝑦) = (𝐺‘𝑘))
8	7	fveq1d 6647	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑘 ∈ ω ∧ 𝑦 ∈ (𝐴 ↑m 𝑘))) → ((𝐺‘dom 𝑦)‘𝑦) = ((𝐺‘𝑘)‘𝑦))
9		fseqenlem.a	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝐴 ∈ 𝑉)
10		fseqenlem.b	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝐵 ∈ 𝐴)
11		fseqenlem.f	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝐹:(𝐴 × 𝐴)–1-1-onto→𝐴)
12		fseqenlem.g	. . . . . . . . . . . 12 ⊢ 𝐺 = seqω((𝑛 ∈ V, 𝑓 ∈ V ↦ (𝑥 ∈ (𝐴 ↑m suc 𝑛) ↦ ((𝑓‘(𝑥 ↾ 𝑛))𝐹(𝑥‘𝑛)))), {⟨∅, 𝐵⟩})
13	9, 10, 11, 12	fseqenlem1 9435	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑘 ∈ ω) → (𝐺‘𝑘):(𝐴 ↑m 𝑘)–1-1→𝐴)
14	13	adantrr 716	. . . . . . . . . 10 ⊢ ((𝜑 ∧ (𝑘 ∈ ω ∧ 𝑦 ∈ (𝐴 ↑m 𝑘))) → (𝐺‘𝑘):(𝐴 ↑m 𝑘)–1-1→𝐴)
15		f1f 6549	. . . . . . . . . 10 ⊢ ((𝐺‘𝑘):(𝐴 ↑m 𝑘)–1-1→𝐴 → (𝐺‘𝑘):(𝐴 ↑m 𝑘)⟶𝐴)
16	14, 15	syl 17	. . . . . . . . 9 ⊢ ((𝜑 ∧ (𝑘 ∈ ω ∧ 𝑦 ∈ (𝐴 ↑m 𝑘))) → (𝐺‘𝑘):(𝐴 ↑m 𝑘)⟶𝐴)
17		simprr 772	. . . . . . . . 9 ⊢ ((𝜑 ∧ (𝑘 ∈ ω ∧ 𝑦 ∈ (𝐴 ↑m 𝑘))) → 𝑦 ∈ (𝐴 ↑m 𝑘))
18	16, 17	ffvelrnd 6829	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑘 ∈ ω ∧ 𝑦 ∈ (𝐴 ↑m 𝑘))) → ((𝐺‘𝑘)‘𝑦) ∈ 𝐴)
19	8, 18	eqeltrd 2890	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑘 ∈ ω ∧ 𝑦 ∈ (𝐴 ↑m 𝑘))) → ((𝐺‘dom 𝑦)‘𝑦) ∈ 𝐴)
20	6, 19	opelxpd 5557	. . . . . 6 ⊢ ((𝜑 ∧ (𝑘 ∈ ω ∧ 𝑦 ∈ (𝐴 ↑m 𝑘))) → ⟨dom 𝑦, ((𝐺‘dom 𝑦)‘𝑦)⟩ ∈ (ω × 𝐴))
21	20	rexlimdvaa 3244	. . . . 5 ⊢ (𝜑 → (∃𝑘 ∈ ω 𝑦 ∈ (𝐴 ↑m 𝑘) → ⟨dom 𝑦, ((𝐺‘dom 𝑦)‘𝑦)⟩ ∈ (ω × 𝐴)))
22	1, 21	syl5bi 245	. . . 4 ⊢ (𝜑 → (𝑦 ∈ ∪ 𝑘 ∈ ω (𝐴 ↑m 𝑘) → ⟨dom 𝑦, ((𝐺‘dom 𝑦)‘𝑦)⟩ ∈ (ω × 𝐴)))
23	22	imp 410	. . 3 ⊢ ((𝜑 ∧ 𝑦 ∈ ∪ 𝑘 ∈ ω (𝐴 ↑m 𝑘)) → ⟨dom 𝑦, ((𝐺‘dom 𝑦)‘𝑦)⟩ ∈ (ω × 𝐴))
24		fseqenlem.k	. . 3 ⊢ 𝐾 = (𝑦 ∈ ∪ 𝑘 ∈ ω (𝐴 ↑m 𝑘) ↦ ⟨dom 𝑦, ((𝐺‘dom 𝑦)‘𝑦)⟩)
25	23, 24	fmptd 6855	. 2 ⊢ (𝜑 → 𝐾:∪ 𝑘 ∈ ω (𝐴 ↑m 𝑘)⟶(ω × 𝐴))
26		ffun 6490	. . . . . . . . . . . . . . 15 ⊢ (𝐾:∪ 𝑘 ∈ ω (𝐴 ↑m 𝑘)⟶(ω × 𝐴) → Fun 𝐾)
27		funbrfv2b 6698	. . . . . . . . . . . . . . 15 ⊢ (Fun 𝐾 → (𝑧𝐾𝑤 ↔ (𝑧 ∈ dom 𝐾 ∧ (𝐾‘𝑧) = 𝑤)))
28	25, 26, 27	3syl 18	. . . . . . . . . . . . . 14 ⊢ (𝜑 → (𝑧𝐾𝑤 ↔ (𝑧 ∈ dom 𝐾 ∧ (𝐾‘𝑧) = 𝑤)))
29	28	simplbda 503	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑧𝐾𝑤) → (𝐾‘𝑧) = 𝑤)
30	28	simprbda 502	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑧𝐾𝑤) → 𝑧 ∈ dom 𝐾)
31	25	fdmd 6497	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → dom 𝐾 = ∪ 𝑘 ∈ ω (𝐴 ↑m 𝑘))
32	31	adantr 484	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑧𝐾𝑤) → dom 𝐾 = ∪ 𝑘 ∈ ω (𝐴 ↑m 𝑘))
33	30, 32	eleqtrd 2892	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑧𝐾𝑤) → 𝑧 ∈ ∪ 𝑘 ∈ ω (𝐴 ↑m 𝑘))
34		dmeq 5736	. . . . . . . . . . . . . . . 16 ⊢ (𝑦 = 𝑧 → dom 𝑦 = dom 𝑧)
35	34	fveq2d 6649	. . . . . . . . . . . . . . . . 17 ⊢ (𝑦 = 𝑧 → (𝐺‘dom 𝑦) = (𝐺‘dom 𝑧))
36		id 22	. . . . . . . . . . . . . . . . 17 ⊢ (𝑦 = 𝑧 → 𝑦 = 𝑧)
37	35, 36	fveq12d 6652	. . . . . . . . . . . . . . . 16 ⊢ (𝑦 = 𝑧 → ((𝐺‘dom 𝑦)‘𝑦) = ((𝐺‘dom 𝑧)‘𝑧))
38	34, 37	opeq12d 4773	. . . . . . . . . . . . . . 15 ⊢ (𝑦 = 𝑧 → ⟨dom 𝑦, ((𝐺‘dom 𝑦)‘𝑦)⟩ = ⟨dom 𝑧, ((𝐺‘dom 𝑧)‘𝑧)⟩)
39		opex 5321	. . . . . . . . . . . . . . 15 ⊢ ⟨dom 𝑧, ((𝐺‘dom 𝑧)‘𝑧)⟩ ∈ V
40	38, 24, 39	fvmpt 6745	. . . . . . . . . . . . . 14 ⊢ (𝑧 ∈ ∪ 𝑘 ∈ ω (𝐴 ↑m 𝑘) → (𝐾‘𝑧) = ⟨dom 𝑧, ((𝐺‘dom 𝑧)‘𝑧)⟩)
41	33, 40	syl 17	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑧𝐾𝑤) → (𝐾‘𝑧) = ⟨dom 𝑧, ((𝐺‘dom 𝑧)‘𝑧)⟩)
42	29, 41	eqtr3d 2835	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑧𝐾𝑤) → 𝑤 = ⟨dom 𝑧, ((𝐺‘dom 𝑧)‘𝑧)⟩)
43	42	fveq2d 6649	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑧𝐾𝑤) → (1st ‘𝑤) = (1st ‘⟨dom 𝑧, ((𝐺‘dom 𝑧)‘𝑧)⟩))
44		vex 3444	. . . . . . . . . . . . 13 ⊢ 𝑧 ∈ V
45	44	dmex 7598	. . . . . . . . . . . 12 ⊢ dom 𝑧 ∈ V
46		fvex 6658	. . . . . . . . . . . 12 ⊢ ((𝐺‘dom 𝑧)‘𝑧) ∈ V
47	45, 46	op1st 7679	. . . . . . . . . . 11 ⊢ (1st ‘⟨dom 𝑧, ((𝐺‘dom 𝑧)‘𝑧)⟩) = dom 𝑧
48	43, 47	eqtrdi 2849	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑧𝐾𝑤) → (1st ‘𝑤) = dom 𝑧)
49	48	fveq2d 6649	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑧𝐾𝑤) → (𝐺‘(1st ‘𝑤)) = (𝐺‘dom 𝑧))
50	49	cnveqd 5710	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑧𝐾𝑤) → ◡(𝐺‘(1st ‘𝑤)) = ◡(𝐺‘dom 𝑧))
51	42	fveq2d 6649	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑧𝐾𝑤) → (2nd ‘𝑤) = (2nd ‘⟨dom 𝑧, ((𝐺‘dom 𝑧)‘𝑧)⟩))
52	45, 46	op2nd 7680	. . . . . . . . 9 ⊢ (2nd ‘⟨dom 𝑧, ((𝐺‘dom 𝑧)‘𝑧)⟩) = ((𝐺‘dom 𝑧)‘𝑧)
53	51, 52	eqtrdi 2849	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑧𝐾𝑤) → (2nd ‘𝑤) = ((𝐺‘dom 𝑧)‘𝑧))
54	50, 53	fveq12d 6652	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑧𝐾𝑤) → (◡(𝐺‘(1st ‘𝑤))‘(2nd ‘𝑤)) = (◡(𝐺‘dom 𝑧)‘((𝐺‘dom 𝑧)‘𝑧)))
55		eliun 4885	. . . . . . . . . . . . 13 ⊢ (𝑧 ∈ ∪ 𝑘 ∈ ω (𝐴 ↑m 𝑘) ↔ ∃𝑘 ∈ ω 𝑧 ∈ (𝐴 ↑m 𝑘))
56		elmapi 8411	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑧 ∈ (𝐴 ↑m 𝑘) → 𝑧:𝑘⟶𝐴)
57	56	adantl 485	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑘 ∈ ω ∧ 𝑧 ∈ (𝐴 ↑m 𝑘)) → 𝑧:𝑘⟶𝐴)
58	57	fdmd 6497	. . . . . . . . . . . . . . . 16 ⊢ ((𝑘 ∈ ω ∧ 𝑧 ∈ (𝐴 ↑m 𝑘)) → dom 𝑧 = 𝑘)
59		simpl 486	. . . . . . . . . . . . . . . 16 ⊢ ((𝑘 ∈ ω ∧ 𝑧 ∈ (𝐴 ↑m 𝑘)) → 𝑘 ∈ ω)
60	58, 59	eqeltrd 2890	. . . . . . . . . . . . . . 15 ⊢ ((𝑘 ∈ ω ∧ 𝑧 ∈ (𝐴 ↑m 𝑘)) → dom 𝑧 ∈ ω)
61		simpr 488	. . . . . . . . . . . . . . . 16 ⊢ ((𝑘 ∈ ω ∧ 𝑧 ∈ (𝐴 ↑m 𝑘)) → 𝑧 ∈ (𝐴 ↑m 𝑘))
62	58	oveq2d 7151	. . . . . . . . . . . . . . . 16 ⊢ ((𝑘 ∈ ω ∧ 𝑧 ∈ (𝐴 ↑m 𝑘)) → (𝐴 ↑m dom 𝑧) = (𝐴 ↑m 𝑘))
63	61, 62	eleqtrrd 2893	. . . . . . . . . . . . . . 15 ⊢ ((𝑘 ∈ ω ∧ 𝑧 ∈ (𝐴 ↑m 𝑘)) → 𝑧 ∈ (𝐴 ↑m dom 𝑧))
64	60, 63	jca 515	. . . . . . . . . . . . . 14 ⊢ ((𝑘 ∈ ω ∧ 𝑧 ∈ (𝐴 ↑m 𝑘)) → (dom 𝑧 ∈ ω ∧ 𝑧 ∈ (𝐴 ↑m dom 𝑧)))
65	64	rexlimiva 3240	. . . . . . . . . . . . 13 ⊢ (∃𝑘 ∈ ω 𝑧 ∈ (𝐴 ↑m 𝑘) → (dom 𝑧 ∈ ω ∧ 𝑧 ∈ (𝐴 ↑m dom 𝑧)))
66	55, 65	sylbi 220	. . . . . . . . . . . 12 ⊢ (𝑧 ∈ ∪ 𝑘 ∈ ω (𝐴 ↑m 𝑘) → (dom 𝑧 ∈ ω ∧ 𝑧 ∈ (𝐴 ↑m dom 𝑧)))
67	33, 66	syl 17	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑧𝐾𝑤) → (dom 𝑧 ∈ ω ∧ 𝑧 ∈ (𝐴 ↑m dom 𝑧)))
68	67	simpld 498	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑧𝐾𝑤) → dom 𝑧 ∈ ω)
69	9, 10, 11, 12	fseqenlem1 9435	. . . . . . . . . 10 ⊢ ((𝜑 ∧ dom 𝑧 ∈ ω) → (𝐺‘dom 𝑧):(𝐴 ↑m dom 𝑧)–1-1→𝐴)
70	68, 69	syldan 594	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑧𝐾𝑤) → (𝐺‘dom 𝑧):(𝐴 ↑m dom 𝑧)–1-1→𝐴)
71		f1f1orn 6601	. . . . . . . . 9 ⊢ ((𝐺‘dom 𝑧):(𝐴 ↑m dom 𝑧)–1-1→𝐴 → (𝐺‘dom 𝑧):(𝐴 ↑m dom 𝑧)–1-1-onto→ran (𝐺‘dom 𝑧))
72	70, 71	syl 17	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑧𝐾𝑤) → (𝐺‘dom 𝑧):(𝐴 ↑m dom 𝑧)–1-1-onto→ran (𝐺‘dom 𝑧))
73	67	simprd 499	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑧𝐾𝑤) → 𝑧 ∈ (𝐴 ↑m dom 𝑧))
74		f1ocnvfv1 7011	. . . . . . . 8 ⊢ (((𝐺‘dom 𝑧):(𝐴 ↑m dom 𝑧)–1-1-onto→ran (𝐺‘dom 𝑧) ∧ 𝑧 ∈ (𝐴 ↑m dom 𝑧)) → (◡(𝐺‘dom 𝑧)‘((𝐺‘dom 𝑧)‘𝑧)) = 𝑧)
75	72, 73, 74	syl2anc 587	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑧𝐾𝑤) → (◡(𝐺‘dom 𝑧)‘((𝐺‘dom 𝑧)‘𝑧)) = 𝑧)
76	54, 75	eqtr2d 2834	. . . . . 6 ⊢ ((𝜑 ∧ 𝑧𝐾𝑤) → 𝑧 = (◡(𝐺‘(1st ‘𝑤))‘(2nd ‘𝑤)))
77	76	ex 416	. . . . 5 ⊢ (𝜑 → (𝑧𝐾𝑤 → 𝑧 = (◡(𝐺‘(1st ‘𝑤))‘(2nd ‘𝑤))))
78	77	alrimiv 1928	. . . 4 ⊢ (𝜑 → ∀𝑧(𝑧𝐾𝑤 → 𝑧 = (◡(𝐺‘(1st ‘𝑤))‘(2nd ‘𝑤))))
79		mo2icl 3653	. . . 4 ⊢ (∀𝑧(𝑧𝐾𝑤 → 𝑧 = (◡(𝐺‘(1st ‘𝑤))‘(2nd ‘𝑤))) → ∃*𝑧 𝑧𝐾𝑤)
80	78, 79	syl 17	. . 3 ⊢ (𝜑 → ∃*𝑧 𝑧𝐾𝑤)
81	80	alrimiv 1928	. 2 ⊢ (𝜑 → ∀𝑤∃*𝑧 𝑧𝐾𝑤)
82		dff12 6548	. 2 ⊢ (𝐾:∪ 𝑘 ∈ ω (𝐴 ↑m 𝑘)–1-1→(ω × 𝐴) ↔ (𝐾:∪ 𝑘 ∈ ω (𝐴 ↑m 𝑘)⟶(ω × 𝐴) ∧ ∀𝑤∃*𝑧 𝑧𝐾𝑤))
83	25, 81, 82	sylanbrc 586	1 ⊢ (𝜑 → 𝐾:∪ 𝑘 ∈ ω (𝐴 ↑m 𝑘)–1-1→(ω × 𝐴))

Syntax hints:   → wi 4   ↔ wb 209   ∧ wa 399  ∀wal 1536   = wceq 1538   ∈ wcel 2111  ∃*wmo 2596  ∃wrex 3107  Vcvv 3441  ∅c0 4243  {csn 4525  ⟨cop 4531  ∪ ciun 4881   class class class wbr 5030   ↦ cmpt 5110   × cxp 5517  ^◡ccnv 5518  dom cdm 5519  ran crn 5520   ↾ cres 5521  suc csuc 6161  Fun wfun 6318  ⟶wf 6320  –1-1→wf1 6321  –1-1-onto→wf1o 6323  ‘cfv 6324  (class class class)co 7135   ∈ cmpo 7137  ωcom 7560  1^st c1st 7669  2^nd c2nd 7670  seq_ωcseqom 8066   ↑_m cmap 8389

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2113  ax-9 2121  ax-10 2142  ax-11 2158  ax-12 2175  ax-ext 2770  ax-rep 5154  ax-sep 5167  ax-nul 5174  ax-pow 5231  ax-pr 5295  ax-un 7441

This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3or 1085  df-3an 1086  df-tru 1541  df-ex 1782  df-nf 1786  df-sb 2070  df-mo 2598  df-eu 2629  df-clab 2777  df-cleq 2791  df-clel 2870  df-nfc 2938  df-ne 2988  df-ral 3111  df-rex 3112  df-reu 3113  df-rab 3115  df-v 3443  df-sbc 3721  df-csb 3829  df-dif 3884  df-un 3886  df-in 3888  df-ss 3898  df-pss 3900  df-nul 4244  df-if 4426  df-pw 4499  df-sn 4526  df-pr 4528  df-tp 4530  df-op 4532  df-uni 4801  df-iun 4883  df-br 5031  df-opab 5093  df-mpt 5111  df-tr 5137  df-id 5425  df-eprel 5430  df-po 5438  df-so 5439  df-fr 5478  df-we 5480  df-xp 5525  df-rel 5526  df-cnv 5527  df-co 5528  df-dm 5529  df-rn 5530  df-res 5531  df-ima 5532  df-pred 6116  df-ord 6162  df-on 6163  df-lim 6164  df-suc 6165  df-iota 6283  df-fun 6326  df-fn 6327  df-f 6328  df-f1 6329  df-fo 6330  df-f1o 6331  df-fv 6332  df-ov 7138  df-oprab 7139  df-mpo 7140  df-om 7561  df-1st 7671  df-2nd 7672  df-wrecs 7930  df-recs 7991  df-rdg 8029  df-seqom 8067  df-1o 8085  df-map 8391

This theorem is referenced by:  fseqen  9438  pwfseqlem5  10074