Theorem seqomlem1 8421

Description: Lemma for seq_ω. The underlying recursion generates a sequence of pairs with the expected first values. (Contributed by Stefan O'Rear, 1-Nov-2014.) (Revised by Mario Carneiro, 23-Jun-2015.)

Hypothesis

Ref	Expression
seqomlem.a	⊢ 𝑄 = rec((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩), ⟨∅, ( I ‘𝐼)⟩)

Assertion

Ref	Expression
seqomlem1	⊢ (𝐴 ∈ ω → (𝑄‘𝐴) = ⟨𝐴, (2nd ‘(𝑄‘𝐴))⟩)

Distinct variable groups:   𝑄,𝑖,𝑣   𝐴,𝑖,𝑣   𝑖,𝐹,𝑣

Allowed substitution hints:   𝐼(𝑣,𝑖)

Proof of Theorem seqomlem1

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

Step	Hyp	Ref	Expression
1		fveq2 6861	. . 3 ⊢ (𝑎 = ∅ → (𝑄‘𝑎) = (𝑄‘∅))
2		id 22	. . . 4 ⊢ (𝑎 = ∅ → 𝑎 = ∅)
3		2fveq3 6866	. . . 4 ⊢ (𝑎 = ∅ → (2nd ‘(𝑄‘𝑎)) = (2nd ‘(𝑄‘∅)))
4	2, 3	opeq12d 4848	. . 3 ⊢ (𝑎 = ∅ → ⟨𝑎, (2nd ‘(𝑄‘𝑎))⟩ = ⟨∅, (2nd ‘(𝑄‘∅))⟩)
5	1, 4	eqeq12d 2746	. 2 ⊢ (𝑎 = ∅ → ((𝑄‘𝑎) = ⟨𝑎, (2nd ‘(𝑄‘𝑎))⟩ ↔ (𝑄‘∅) = ⟨∅, (2nd ‘(𝑄‘∅))⟩))
6		fveq2 6861	. . 3 ⊢ (𝑎 = 𝑏 → (𝑄‘𝑎) = (𝑄‘𝑏))
7		id 22	. . . 4 ⊢ (𝑎 = 𝑏 → 𝑎 = 𝑏)
8		2fveq3 6866	. . . 4 ⊢ (𝑎 = 𝑏 → (2nd ‘(𝑄‘𝑎)) = (2nd ‘(𝑄‘𝑏)))
9	7, 8	opeq12d 4848	. . 3 ⊢ (𝑎 = 𝑏 → ⟨𝑎, (2nd ‘(𝑄‘𝑎))⟩ = ⟨𝑏, (2nd ‘(𝑄‘𝑏))⟩)
10	6, 9	eqeq12d 2746	. 2 ⊢ (𝑎 = 𝑏 → ((𝑄‘𝑎) = ⟨𝑎, (2nd ‘(𝑄‘𝑎))⟩ ↔ (𝑄‘𝑏) = ⟨𝑏, (2nd ‘(𝑄‘𝑏))⟩))
11		fveq2 6861	. . 3 ⊢ (𝑎 = suc 𝑏 → (𝑄‘𝑎) = (𝑄‘suc 𝑏))
12		id 22	. . . 4 ⊢ (𝑎 = suc 𝑏 → 𝑎 = suc 𝑏)
13		2fveq3 6866	. . . 4 ⊢ (𝑎 = suc 𝑏 → (2nd ‘(𝑄‘𝑎)) = (2nd ‘(𝑄‘suc 𝑏)))
14	12, 13	opeq12d 4848	. . 3 ⊢ (𝑎 = suc 𝑏 → ⟨𝑎, (2nd ‘(𝑄‘𝑎))⟩ = ⟨suc 𝑏, (2nd ‘(𝑄‘suc 𝑏))⟩)
15	11, 14	eqeq12d 2746	. 2 ⊢ (𝑎 = suc 𝑏 → ((𝑄‘𝑎) = ⟨𝑎, (2nd ‘(𝑄‘𝑎))⟩ ↔ (𝑄‘suc 𝑏) = ⟨suc 𝑏, (2nd ‘(𝑄‘suc 𝑏))⟩))
16		fveq2 6861	. . 3 ⊢ (𝑎 = 𝐴 → (𝑄‘𝑎) = (𝑄‘𝐴))
17		id 22	. . . 4 ⊢ (𝑎 = 𝐴 → 𝑎 = 𝐴)
18		2fveq3 6866	. . . 4 ⊢ (𝑎 = 𝐴 → (2nd ‘(𝑄‘𝑎)) = (2nd ‘(𝑄‘𝐴)))
19	17, 18	opeq12d 4848	. . 3 ⊢ (𝑎 = 𝐴 → ⟨𝑎, (2nd ‘(𝑄‘𝑎))⟩ = ⟨𝐴, (2nd ‘(𝑄‘𝐴))⟩)
20	16, 19	eqeq12d 2746	. 2 ⊢ (𝑎 = 𝐴 → ((𝑄‘𝑎) = ⟨𝑎, (2nd ‘(𝑄‘𝑎))⟩ ↔ (𝑄‘𝐴) = ⟨𝐴, (2nd ‘(𝑄‘𝐴))⟩))
21		seqomlem.a	. . . . 5 ⊢ 𝑄 = rec((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩), ⟨∅, ( I ‘𝐼)⟩)
22	21	fveq1i 6862	. . . 4 ⊢ (𝑄‘∅) = (rec((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩), ⟨∅, ( I ‘𝐼)⟩)‘∅)
23		opex 5427	. . . . 5 ⊢ ⟨∅, ( I ‘𝐼)⟩ ∈ V
24	23	rdg0 8392	. . . 4 ⊢ (rec((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩), ⟨∅, ( I ‘𝐼)⟩)‘∅) = ⟨∅, ( I ‘𝐼)⟩
25	22, 24	eqtri 2753	. . 3 ⊢ (𝑄‘∅) = ⟨∅, ( I ‘𝐼)⟩
26		0ex 5265	. . . . . . 7 ⊢ ∅ ∈ V
27		fvex 6874	. . . . . . 7 ⊢ ( I ‘𝐼) ∈ V
28	26, 27	op2nd 7980	. . . . . 6 ⊢ (2nd ‘⟨∅, ( I ‘𝐼)⟩) = ( I ‘𝐼)
29	28	eqcomi 2739	. . . . 5 ⊢ ( I ‘𝐼) = (2nd ‘⟨∅, ( I ‘𝐼)⟩)
30	29	opeq2i 4844	. . . 4 ⊢ ⟨∅, ( I ‘𝐼)⟩ = ⟨∅, (2nd ‘⟨∅, ( I ‘𝐼)⟩)⟩
31		id 22	. . . 4 ⊢ ((𝑄‘∅) = ⟨∅, ( I ‘𝐼)⟩ → (𝑄‘∅) = ⟨∅, ( I ‘𝐼)⟩)
32		fveq2 6861	. . . . 5 ⊢ ((𝑄‘∅) = ⟨∅, ( I ‘𝐼)⟩ → (2nd ‘(𝑄‘∅)) = (2nd ‘⟨∅, ( I ‘𝐼)⟩))
33	32	opeq2d 4847	. . . 4 ⊢ ((𝑄‘∅) = ⟨∅, ( I ‘𝐼)⟩ → ⟨∅, (2nd ‘(𝑄‘∅))⟩ = ⟨∅, (2nd ‘⟨∅, ( I ‘𝐼)⟩)⟩)
34	30, 31, 33	3eqtr4a 2791	. . 3 ⊢ ((𝑄‘∅) = ⟨∅, ( I ‘𝐼)⟩ → (𝑄‘∅) = ⟨∅, (2nd ‘(𝑄‘∅))⟩)
35	25, 34	ax-mp 5	. 2 ⊢ (𝑄‘∅) = ⟨∅, (2nd ‘(𝑄‘∅))⟩
36		df-ov 7393	. . . . . 6 ⊢ (𝑏(𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)(2nd ‘(𝑄‘𝑏))) = ((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘⟨𝑏, (2nd ‘(𝑄‘𝑏))⟩)
37		fvex 6874	. . . . . . 7 ⊢ (2nd ‘(𝑄‘𝑏)) ∈ V
38		suceq 6403	. . . . . . . . 9 ⊢ (𝑖 = 𝑏 → suc 𝑖 = suc 𝑏)
39		oveq1 7397	. . . . . . . . 9 ⊢ (𝑖 = 𝑏 → (𝑖𝐹𝑣) = (𝑏𝐹𝑣))
40	38, 39	opeq12d 4848	. . . . . . . 8 ⊢ (𝑖 = 𝑏 → ⟨suc 𝑖, (𝑖𝐹𝑣)⟩ = ⟨suc 𝑏, (𝑏𝐹𝑣)⟩)
41		oveq2 7398	. . . . . . . . 9 ⊢ (𝑣 = (2nd ‘(𝑄‘𝑏)) → (𝑏𝐹𝑣) = (𝑏𝐹(2nd ‘(𝑄‘𝑏))))
42	41	opeq2d 4847	. . . . . . . 8 ⊢ (𝑣 = (2nd ‘(𝑄‘𝑏)) → ⟨suc 𝑏, (𝑏𝐹𝑣)⟩ = ⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩)
43		eqid 2730	. . . . . . . 8 ⊢ (𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩) = (𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)
44		opex 5427	. . . . . . . 8 ⊢ ⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩ ∈ V
45	40, 42, 43, 44	ovmpo 7552	. . . . . . 7 ⊢ ((𝑏 ∈ ω ∧ (2nd ‘(𝑄‘𝑏)) ∈ V) → (𝑏(𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)(2nd ‘(𝑄‘𝑏))) = ⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩)
46	37, 45	mpan2 691	. . . . . 6 ⊢ (𝑏 ∈ ω → (𝑏(𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)(2nd ‘(𝑄‘𝑏))) = ⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩)
47	36, 46	eqtr3id 2779	. . . . 5 ⊢ (𝑏 ∈ ω → ((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘⟨𝑏, (2nd ‘(𝑄‘𝑏))⟩) = ⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩)
48		fveqeq2 6870	. . . . 5 ⊢ ((𝑄‘𝑏) = ⟨𝑏, (2nd ‘(𝑄‘𝑏))⟩ → (((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏)) = ⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩ ↔ ((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘⟨𝑏, (2nd ‘(𝑄‘𝑏))⟩) = ⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩))
49	47, 48	syl5ibrcom 247	. . . 4 ⊢ (𝑏 ∈ ω → ((𝑄‘𝑏) = ⟨𝑏, (2nd ‘(𝑄‘𝑏))⟩ → ((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏)) = ⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩))
50		vex 3454	. . . . . . . . . 10 ⊢ 𝑏 ∈ V
51	50	sucex 7785	. . . . . . . . 9 ⊢ suc 𝑏 ∈ V
52		ovex 7423	. . . . . . . . 9 ⊢ (𝑏𝐹(2nd ‘(𝑄‘𝑏))) ∈ V
53	51, 52	op2nd 7980	. . . . . . . 8 ⊢ (2nd ‘⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩) = (𝑏𝐹(2nd ‘(𝑄‘𝑏)))
54	53	eqcomi 2739	. . . . . . 7 ⊢ (𝑏𝐹(2nd ‘(𝑄‘𝑏))) = (2nd ‘⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩)
55	54	a1i 11	. . . . . 6 ⊢ (𝑏 ∈ ω → (𝑏𝐹(2nd ‘(𝑄‘𝑏))) = (2nd ‘⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩))
56	55	opeq2d 4847	. . . . 5 ⊢ (𝑏 ∈ ω → ⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩ = ⟨suc 𝑏, (2nd ‘⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩)⟩)
57		id 22	. . . . . 6 ⊢ (((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏)) = ⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩ → ((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏)) = ⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩)
58		fveq2 6861	. . . . . . 7 ⊢ (((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏)) = ⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩ → (2nd ‘((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏))) = (2nd ‘⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩))
59	58	opeq2d 4847	. . . . . 6 ⊢ (((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏)) = ⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩ → ⟨suc 𝑏, (2nd ‘((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏)))⟩ = ⟨suc 𝑏, (2nd ‘⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩)⟩)
60	57, 59	eqeq12d 2746	. . . . 5 ⊢ (((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏)) = ⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩ → (((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏)) = ⟨suc 𝑏, (2nd ‘((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏)))⟩ ↔ ⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩ = ⟨suc 𝑏, (2nd ‘⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩)⟩))
61	56, 60	syl5ibrcom 247	. . . 4 ⊢ (𝑏 ∈ ω → (((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏)) = ⟨suc 𝑏, (𝑏𝐹(2nd ‘(𝑄‘𝑏)))⟩ → ((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏)) = ⟨suc 𝑏, (2nd ‘((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏)))⟩))
62	49, 61	syld 47	. . 3 ⊢ (𝑏 ∈ ω → ((𝑄‘𝑏) = ⟨𝑏, (2nd ‘(𝑄‘𝑏))⟩ → ((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏)) = ⟨suc 𝑏, (2nd ‘((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏)))⟩))
63		frsuc 8408	. . . . 5 ⊢ (𝑏 ∈ ω → ((rec((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩), ⟨∅, ( I ‘𝐼)⟩) ↾ ω)‘suc 𝑏) = ((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘((rec((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩), ⟨∅, ( I ‘𝐼)⟩) ↾ ω)‘𝑏)))
64		peano2 7869	. . . . . . 7 ⊢ (𝑏 ∈ ω → suc 𝑏 ∈ ω)
65	64	fvresd 6881	. . . . . 6 ⊢ (𝑏 ∈ ω → ((rec((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩), ⟨∅, ( I ‘𝐼)⟩) ↾ ω)‘suc 𝑏) = (rec((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩), ⟨∅, ( I ‘𝐼)⟩)‘suc 𝑏))
66	21	fveq1i 6862	. . . . . 6 ⊢ (𝑄‘suc 𝑏) = (rec((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩), ⟨∅, ( I ‘𝐼)⟩)‘suc 𝑏)
67	65, 66	eqtr4di 2783	. . . . 5 ⊢ (𝑏 ∈ ω → ((rec((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩), ⟨∅, ( I ‘𝐼)⟩) ↾ ω)‘suc 𝑏) = (𝑄‘suc 𝑏))
68		fvres 6880	. . . . . . 7 ⊢ (𝑏 ∈ ω → ((rec((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩), ⟨∅, ( I ‘𝐼)⟩) ↾ ω)‘𝑏) = (rec((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩), ⟨∅, ( I ‘𝐼)⟩)‘𝑏))
69	21	fveq1i 6862	. . . . . . 7 ⊢ (𝑄‘𝑏) = (rec((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩), ⟨∅, ( I ‘𝐼)⟩)‘𝑏)
70	68, 69	eqtr4di 2783	. . . . . 6 ⊢ (𝑏 ∈ ω → ((rec((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩), ⟨∅, ( I ‘𝐼)⟩) ↾ ω)‘𝑏) = (𝑄‘𝑏))
71	70	fveq2d 6865	. . . . 5 ⊢ (𝑏 ∈ ω → ((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘((rec((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩), ⟨∅, ( I ‘𝐼)⟩) ↾ ω)‘𝑏)) = ((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏)))
72	63, 67, 71	3eqtr3d 2773	. . . 4 ⊢ (𝑏 ∈ ω → (𝑄‘suc 𝑏) = ((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏)))
73	72	fveq2d 6865	. . . . 5 ⊢ (𝑏 ∈ ω → (2nd ‘(𝑄‘suc 𝑏)) = (2nd ‘((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏))))
74	73	opeq2d 4847	. . . 4 ⊢ (𝑏 ∈ ω → ⟨suc 𝑏, (2nd ‘(𝑄‘suc 𝑏))⟩ = ⟨suc 𝑏, (2nd ‘((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏)))⟩)
75	72, 74	eqeq12d 2746	. . 3 ⊢ (𝑏 ∈ ω → ((𝑄‘suc 𝑏) = ⟨suc 𝑏, (2nd ‘(𝑄‘suc 𝑏))⟩ ↔ ((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏)) = ⟨suc 𝑏, (2nd ‘((𝑖 ∈ ω, 𝑣 ∈ V ↦ ⟨suc 𝑖, (𝑖𝐹𝑣)⟩)‘(𝑄‘𝑏)))⟩))
76	62, 75	sylibrd 259	. 2 ⊢ (𝑏 ∈ ω → ((𝑄‘𝑏) = ⟨𝑏, (2nd ‘(𝑄‘𝑏))⟩ → (𝑄‘suc 𝑏) = ⟨suc 𝑏, (2nd ‘(𝑄‘suc 𝑏))⟩))
77	5, 10, 15, 20, 35, 76	finds 7875	1 ⊢ (𝐴 ∈ ω → (𝑄‘𝐴) = ⟨𝐴, (2nd ‘(𝑄‘𝐴))⟩)

Syntax hints:   → wi 4   = wceq 1540   ∈ wcel 2109  Vcvv 3450  ∅c0 4299  ⟨cop 4598   I cid 5535   ↾ cres 5643  suc csuc 6337  ‘cfv 6514  (class class class)co 7390   ∈ cmpo 7392  ωcom 7845  2^nd c2nd 7970  reccrdg 8380

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 2702  ax-sep 5254  ax-nul 5264  ax-pr 5390  ax-un 7714

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 2534  df-eu 2563  df-clab 2709  df-cleq 2722  df-clel 2804  df-nfc 2879  df-ne 2927  df-ral 3046  df-rex 3055  df-reu 3357  df-rab 3409  df-v 3452  df-sbc 3757  df-csb 3866  df-dif 3920  df-un 3922  df-in 3924  df-ss 3934  df-pss 3937  df-nul 4300  df-if 4492  df-pw 4568  df-sn 4593  df-pr 4595  df-op 4599  df-uni 4875  df-iun 4960  df-br 5111  df-opab 5173  df-mpt 5192  df-tr 5218  df-id 5536  df-eprel 5541  df-po 5549  df-so 5550  df-fr 5594  df-we 5596  df-xp 5647  df-rel 5648  df-cnv 5649  df-co 5650  df-dm 5651  df-rn 5652  df-res 5653  df-ima 5654  df-pred 6277  df-ord 6338  df-on 6339  df-lim 6340  df-suc 6341  df-iota 6467  df-fun 6516  df-fn 6517  df-f 6518  df-f1 6519  df-fo 6520  df-f1o 6521  df-fv 6522  df-ov 7393  df-oprab 7394  df-mpo 7395  df-om 7846  df-2nd 7972  df-frecs 8263  df-wrecs 8294  df-recs 8343  df-rdg 8381

This theorem is referenced by:  seqomlem2  8422  seqomlem4  8424