Theorem iseqhomo 10003

Description: Apply a homomorphism to a sequence. New proofs should use seq3homo 10005 (Contributed by Jim Kingdon, 21-Aug-2021.) (New usage is discouraged.)

Hypotheses

Ref	Expression
iseqhomo.1	⊢ ((𝜑 ∧ (𝑥 ∈ 𝑆 ∧ 𝑦 ∈ 𝑆)) → (𝑥 + 𝑦) ∈ 𝑆)
iseqhomo.2	⊢ ((𝜑 ∧ 𝑥 ∈ (ℤ≥‘𝑀)) → (𝐹‘𝑥) ∈ 𝑆)
iseqhomo.s	⊢ (𝜑 → 𝑆 ∈ 𝑉)
iseqhomo.3	⊢ (𝜑 → 𝑁 ∈ (ℤ≥‘𝑀))
iseqhomo.4	⊢ ((𝜑 ∧ (𝑥 ∈ 𝑆 ∧ 𝑦 ∈ 𝑆)) → (𝐻‘(𝑥 + 𝑦)) = ((𝐻‘𝑥)𝑄(𝐻‘𝑦)))
iseqhomo.5	⊢ ((𝜑 ∧ 𝑥 ∈ (ℤ≥‘𝑀)) → (𝐻‘(𝐹‘𝑥)) = (𝐺‘𝑥))
iseqhomo.g	⊢ ((𝜑 ∧ 𝑥 ∈ (ℤ≥‘𝑀)) → (𝐺‘𝑥) ∈ 𝑆)
iseqhomo.qcl	⊢ ((𝜑 ∧ (𝑥 ∈ 𝑆 ∧ 𝑦 ∈ 𝑆)) → (𝑥𝑄𝑦) ∈ 𝑆)

Assertion

Ref	Expression
iseqhomo	⊢ (𝜑 → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑁)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑁))

Distinct variable groups:   𝑥,𝑦,𝐹   𝑥,𝐻,𝑦   𝑥,𝑀,𝑦   𝑥,𝑁,𝑦   𝜑,𝑥,𝑦   𝑥,𝐺   𝑥, + ,𝑦   𝑥,𝑄,𝑦   𝑥,𝑆,𝑦   𝑦,𝐺

Allowed substitution hints:   𝑉(𝑥,𝑦)

Proof of Theorem iseqhomo

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

Step	Hyp	Ref	Expression
1		iseqhomo.3	. 2 ⊢ (𝜑 → 𝑁 ∈ (ℤ≥‘𝑀))
2		fveq2 5318	. . . . . 6 ⊢ (𝑤 = 𝑀 → (seq𝑀( + , 𝐹, 𝑆)‘𝑤) = (seq𝑀( + , 𝐹, 𝑆)‘𝑀))
3	2	fveq2d 5322	. . . . 5 ⊢ (𝑤 = 𝑀 → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑤)) = (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑀)))
4		fveq2 5318	. . . . 5 ⊢ (𝑤 = 𝑀 → (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑤) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑀))
5	3, 4	eqeq12d 2103	. . . 4 ⊢ (𝑤 = 𝑀 → ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑤)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑤) ↔ (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑀)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑀)))
6	5	imbi2d 229	. . 3 ⊢ (𝑤 = 𝑀 → ((𝜑 → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑤)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑤)) ↔ (𝜑 → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑀)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑀))))
7		fveq2 5318	. . . . . 6 ⊢ (𝑤 = 𝑛 → (seq𝑀( + , 𝐹, 𝑆)‘𝑤) = (seq𝑀( + , 𝐹, 𝑆)‘𝑛))
8	7	fveq2d 5322	. . . . 5 ⊢ (𝑤 = 𝑛 → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑤)) = (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛)))
9		fveq2 5318	. . . . 5 ⊢ (𝑤 = 𝑛 → (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑤) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑛))
10	8, 9	eqeq12d 2103	. . . 4 ⊢ (𝑤 = 𝑛 → ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑤)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑤) ↔ (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑛)))
11	10	imbi2d 229	. . 3 ⊢ (𝑤 = 𝑛 → ((𝜑 → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑤)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑤)) ↔ (𝜑 → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑛))))
12		fveq2 5318	. . . . . 6 ⊢ (𝑤 = (𝑛 + 1) → (seq𝑀( + , 𝐹, 𝑆)‘𝑤) = (seq𝑀( + , 𝐹, 𝑆)‘(𝑛 + 1)))
13	12	fveq2d 5322	. . . . 5 ⊢ (𝑤 = (𝑛 + 1) → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑤)) = (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘(𝑛 + 1))))
14		fveq2 5318	. . . . 5 ⊢ (𝑤 = (𝑛 + 1) → (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑤) = (seq𝑀(𝑄, 𝐺, 𝑆)‘(𝑛 + 1)))
15	13, 14	eqeq12d 2103	. . . 4 ⊢ (𝑤 = (𝑛 + 1) → ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑤)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑤) ↔ (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘(𝑛 + 1))) = (seq𝑀(𝑄, 𝐺, 𝑆)‘(𝑛 + 1))))
16	15	imbi2d 229	. . 3 ⊢ (𝑤 = (𝑛 + 1) → ((𝜑 → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑤)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑤)) ↔ (𝜑 → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘(𝑛 + 1))) = (seq𝑀(𝑄, 𝐺, 𝑆)‘(𝑛 + 1)))))
17		fveq2 5318	. . . . . 6 ⊢ (𝑤 = 𝑁 → (seq𝑀( + , 𝐹, 𝑆)‘𝑤) = (seq𝑀( + , 𝐹, 𝑆)‘𝑁))
18	17	fveq2d 5322	. . . . 5 ⊢ (𝑤 = 𝑁 → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑤)) = (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑁)))
19		fveq2 5318	. . . . 5 ⊢ (𝑤 = 𝑁 → (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑤) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑁))
20	18, 19	eqeq12d 2103	. . . 4 ⊢ (𝑤 = 𝑁 → ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑤)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑤) ↔ (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑁)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑁)))
21	20	imbi2d 229	. . 3 ⊢ (𝑤 = 𝑁 → ((𝜑 → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑤)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑤)) ↔ (𝜑 → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑁)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑁))))
22		fveq2 5318	. . . . . . . 8 ⊢ (𝑥 = 𝑀 → (𝐹‘𝑥) = (𝐹‘𝑀))
23	22	fveq2d 5322	. . . . . . 7 ⊢ (𝑥 = 𝑀 → (𝐻‘(𝐹‘𝑥)) = (𝐻‘(𝐹‘𝑀)))
24		fveq2 5318	. . . . . . 7 ⊢ (𝑥 = 𝑀 → (𝐺‘𝑥) = (𝐺‘𝑀))
25	23, 24	eqeq12d 2103	. . . . . 6 ⊢ (𝑥 = 𝑀 → ((𝐻‘(𝐹‘𝑥)) = (𝐺‘𝑥) ↔ (𝐻‘(𝐹‘𝑀)) = (𝐺‘𝑀)))
26		iseqhomo.5	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ (ℤ≥‘𝑀)) → (𝐻‘(𝐹‘𝑥)) = (𝐺‘𝑥))
27	26	ralrimiva 2447	. . . . . 6 ⊢ (𝜑 → ∀𝑥 ∈ (ℤ≥‘𝑀)(𝐻‘(𝐹‘𝑥)) = (𝐺‘𝑥))
28		eluzel2 9085	. . . . . . . 8 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → 𝑀 ∈ ℤ)
29	1, 28	syl 14	. . . . . . 7 ⊢ (𝜑 → 𝑀 ∈ ℤ)
30		uzid 9094	. . . . . . 7 ⊢ (𝑀 ∈ ℤ → 𝑀 ∈ (ℤ≥‘𝑀))
31	29, 30	syl 14	. . . . . 6 ⊢ (𝜑 → 𝑀 ∈ (ℤ≥‘𝑀))
32	25, 27, 31	rspcdva 2728	. . . . 5 ⊢ (𝜑 → (𝐻‘(𝐹‘𝑀)) = (𝐺‘𝑀))
33		iseqhomo.2	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ (ℤ≥‘𝑀)) → (𝐹‘𝑥) ∈ 𝑆)
34		iseqhomo.1	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑆 ∧ 𝑦 ∈ 𝑆)) → (𝑥 + 𝑦) ∈ 𝑆)
35	29, 33, 34	iseq1 9936	. . . . . 6 ⊢ (𝜑 → (seq𝑀( + , 𝐹, 𝑆)‘𝑀) = (𝐹‘𝑀))
36	35	fveq2d 5322	. . . . 5 ⊢ (𝜑 → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑀)) = (𝐻‘(𝐹‘𝑀)))
37		iseqhomo.g	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ (ℤ≥‘𝑀)) → (𝐺‘𝑥) ∈ 𝑆)
38		iseqhomo.qcl	. . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑆 ∧ 𝑦 ∈ 𝑆)) → (𝑥𝑄𝑦) ∈ 𝑆)
39	29, 37, 38	iseq1 9936	. . . . 5 ⊢ (𝜑 → (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑀) = (𝐺‘𝑀))
40	32, 36, 39	3eqtr4d 2131	. . . 4 ⊢ (𝜑 → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑀)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑀))
41	40	a1i 9	. . 3 ⊢ (𝑀 ∈ ℤ → (𝜑 → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑀)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑀)))
42		oveq1 5673	. . . . . 6 ⊢ ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑛) → ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛))𝑄(𝐺‘(𝑛 + 1))) = ((seq𝑀(𝑄, 𝐺, 𝑆)‘𝑛)𝑄(𝐺‘(𝑛 + 1))))
43		simpr 109	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → 𝑛 ∈ (ℤ≥‘𝑀))
44	33	adantlr 462	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) ∧ 𝑥 ∈ (ℤ≥‘𝑀)) → (𝐹‘𝑥) ∈ 𝑆)
45	34	adantlr 462	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) ∧ (𝑥 ∈ 𝑆 ∧ 𝑦 ∈ 𝑆)) → (𝑥 + 𝑦) ∈ 𝑆)
46	43, 44, 45	iseqp1 9943	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → (seq𝑀( + , 𝐹, 𝑆)‘(𝑛 + 1)) = ((seq𝑀( + , 𝐹, 𝑆)‘𝑛) + (𝐹‘(𝑛 + 1))))
47	46	fveq2d 5322	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘(𝑛 + 1))) = (𝐻‘((seq𝑀( + , 𝐹, 𝑆)‘𝑛) + (𝐹‘(𝑛 + 1)))))
48		iseqhomo.4	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑆 ∧ 𝑦 ∈ 𝑆)) → (𝐻‘(𝑥 + 𝑦)) = ((𝐻‘𝑥)𝑄(𝐻‘𝑦)))
49	48	ralrimivva 2456	. . . . . . . . . 10 ⊢ (𝜑 → ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑆 (𝐻‘(𝑥 + 𝑦)) = ((𝐻‘𝑥)𝑄(𝐻‘𝑦)))
50	49	adantr 271	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑆 (𝐻‘(𝑥 + 𝑦)) = ((𝐻‘𝑥)𝑄(𝐻‘𝑦)))
51	43, 44, 45	iseqcl 9942	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → (seq𝑀( + , 𝐹, 𝑆)‘𝑛) ∈ 𝑆)
52		fveq2 5318	. . . . . . . . . . . 12 ⊢ (𝑥 = (𝑛 + 1) → (𝐹‘𝑥) = (𝐹‘(𝑛 + 1)))
53	52	eleq1d 2157	. . . . . . . . . . 11 ⊢ (𝑥 = (𝑛 + 1) → ((𝐹‘𝑥) ∈ 𝑆 ↔ (𝐹‘(𝑛 + 1)) ∈ 𝑆))
54	33	ralrimiva 2447	. . . . . . . . . . . 12 ⊢ (𝜑 → ∀𝑥 ∈ (ℤ≥‘𝑀)(𝐹‘𝑥) ∈ 𝑆)
55	54	adantr 271	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → ∀𝑥 ∈ (ℤ≥‘𝑀)(𝐹‘𝑥) ∈ 𝑆)
56		peano2uz 9132	. . . . . . . . . . . 12 ⊢ (𝑛 ∈ (ℤ≥‘𝑀) → (𝑛 + 1) ∈ (ℤ≥‘𝑀))
57	43, 56	syl 14	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → (𝑛 + 1) ∈ (ℤ≥‘𝑀))
58	53, 55, 57	rspcdva 2728	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → (𝐹‘(𝑛 + 1)) ∈ 𝑆)
59		oveq1 5673	. . . . . . . . . . . . 13 ⊢ (𝑥 = (seq𝑀( + , 𝐹, 𝑆)‘𝑛) → (𝑥 + 𝑦) = ((seq𝑀( + , 𝐹, 𝑆)‘𝑛) + 𝑦))
60	59	fveq2d 5322	. . . . . . . . . . . 12 ⊢ (𝑥 = (seq𝑀( + , 𝐹, 𝑆)‘𝑛) → (𝐻‘(𝑥 + 𝑦)) = (𝐻‘((seq𝑀( + , 𝐹, 𝑆)‘𝑛) + 𝑦)))
61		fveq2 5318	. . . . . . . . . . . . 13 ⊢ (𝑥 = (seq𝑀( + , 𝐹, 𝑆)‘𝑛) → (𝐻‘𝑥) = (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛)))
62	61	oveq1d 5681	. . . . . . . . . . . 12 ⊢ (𝑥 = (seq𝑀( + , 𝐹, 𝑆)‘𝑛) → ((𝐻‘𝑥)𝑄(𝐻‘𝑦)) = ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛))𝑄(𝐻‘𝑦)))
63	60, 62	eqeq12d 2103	. . . . . . . . . . 11 ⊢ (𝑥 = (seq𝑀( + , 𝐹, 𝑆)‘𝑛) → ((𝐻‘(𝑥 + 𝑦)) = ((𝐻‘𝑥)𝑄(𝐻‘𝑦)) ↔ (𝐻‘((seq𝑀( + , 𝐹, 𝑆)‘𝑛) + 𝑦)) = ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛))𝑄(𝐻‘𝑦))))
64		oveq2 5674	. . . . . . . . . . . . 13 ⊢ (𝑦 = (𝐹‘(𝑛 + 1)) → ((seq𝑀( + , 𝐹, 𝑆)‘𝑛) + 𝑦) = ((seq𝑀( + , 𝐹, 𝑆)‘𝑛) + (𝐹‘(𝑛 + 1))))
65	64	fveq2d 5322	. . . . . . . . . . . 12 ⊢ (𝑦 = (𝐹‘(𝑛 + 1)) → (𝐻‘((seq𝑀( + , 𝐹, 𝑆)‘𝑛) + 𝑦)) = (𝐻‘((seq𝑀( + , 𝐹, 𝑆)‘𝑛) + (𝐹‘(𝑛 + 1)))))
66		fveq2 5318	. . . . . . . . . . . . 13 ⊢ (𝑦 = (𝐹‘(𝑛 + 1)) → (𝐻‘𝑦) = (𝐻‘(𝐹‘(𝑛 + 1))))
67	66	oveq2d 5682	. . . . . . . . . . . 12 ⊢ (𝑦 = (𝐹‘(𝑛 + 1)) → ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛))𝑄(𝐻‘𝑦)) = ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛))𝑄(𝐻‘(𝐹‘(𝑛 + 1)))))
68	65, 67	eqeq12d 2103	. . . . . . . . . . 11 ⊢ (𝑦 = (𝐹‘(𝑛 + 1)) → ((𝐻‘((seq𝑀( + , 𝐹, 𝑆)‘𝑛) + 𝑦)) = ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛))𝑄(𝐻‘𝑦)) ↔ (𝐻‘((seq𝑀( + , 𝐹, 𝑆)‘𝑛) + (𝐹‘(𝑛 + 1)))) = ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛))𝑄(𝐻‘(𝐹‘(𝑛 + 1))))))
69	63, 68	rspc2v 2735	. . . . . . . . . 10 ⊢ (((seq𝑀( + , 𝐹, 𝑆)‘𝑛) ∈ 𝑆 ∧ (𝐹‘(𝑛 + 1)) ∈ 𝑆) → (∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑆 (𝐻‘(𝑥 + 𝑦)) = ((𝐻‘𝑥)𝑄(𝐻‘𝑦)) → (𝐻‘((seq𝑀( + , 𝐹, 𝑆)‘𝑛) + (𝐹‘(𝑛 + 1)))) = ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛))𝑄(𝐻‘(𝐹‘(𝑛 + 1))))))
70	51, 58, 69	syl2anc 404	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → (∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑆 (𝐻‘(𝑥 + 𝑦)) = ((𝐻‘𝑥)𝑄(𝐻‘𝑦)) → (𝐻‘((seq𝑀( + , 𝐹, 𝑆)‘𝑛) + (𝐹‘(𝑛 + 1)))) = ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛))𝑄(𝐻‘(𝐹‘(𝑛 + 1))))))
71	50, 70	mpd 13	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → (𝐻‘((seq𝑀( + , 𝐹, 𝑆)‘𝑛) + (𝐹‘(𝑛 + 1)))) = ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛))𝑄(𝐻‘(𝐹‘(𝑛 + 1)))))
72	52	fveq2d 5322	. . . . . . . . . . 11 ⊢ (𝑥 = (𝑛 + 1) → (𝐻‘(𝐹‘𝑥)) = (𝐻‘(𝐹‘(𝑛 + 1))))
73		fveq2 5318	. . . . . . . . . . 11 ⊢ (𝑥 = (𝑛 + 1) → (𝐺‘𝑥) = (𝐺‘(𝑛 + 1)))
74	72, 73	eqeq12d 2103	. . . . . . . . . 10 ⊢ (𝑥 = (𝑛 + 1) → ((𝐻‘(𝐹‘𝑥)) = (𝐺‘𝑥) ↔ (𝐻‘(𝐹‘(𝑛 + 1))) = (𝐺‘(𝑛 + 1))))
75	27	adantr 271	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → ∀𝑥 ∈ (ℤ≥‘𝑀)(𝐻‘(𝐹‘𝑥)) = (𝐺‘𝑥))
76	74, 75, 57	rspcdva 2728	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → (𝐻‘(𝐹‘(𝑛 + 1))) = (𝐺‘(𝑛 + 1)))
77	76	oveq2d 5682	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛))𝑄(𝐻‘(𝐹‘(𝑛 + 1)))) = ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛))𝑄(𝐺‘(𝑛 + 1))))
78	47, 71, 77	3eqtrd 2125	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘(𝑛 + 1))) = ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛))𝑄(𝐺‘(𝑛 + 1))))
79	37	adantlr 462	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) ∧ 𝑥 ∈ (ℤ≥‘𝑀)) → (𝐺‘𝑥) ∈ 𝑆)
80	38	adantlr 462	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) ∧ (𝑥 ∈ 𝑆 ∧ 𝑦 ∈ 𝑆)) → (𝑥𝑄𝑦) ∈ 𝑆)
81	43, 79, 80	iseqp1 9943	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → (seq𝑀(𝑄, 𝐺, 𝑆)‘(𝑛 + 1)) = ((seq𝑀(𝑄, 𝐺, 𝑆)‘𝑛)𝑄(𝐺‘(𝑛 + 1))))
82	78, 81	eqeq12d 2103	. . . . . 6 ⊢ ((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘(𝑛 + 1))) = (seq𝑀(𝑄, 𝐺, 𝑆)‘(𝑛 + 1)) ↔ ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛))𝑄(𝐺‘(𝑛 + 1))) = ((seq𝑀(𝑄, 𝐺, 𝑆)‘𝑛)𝑄(𝐺‘(𝑛 + 1)))))
83	42, 82	syl5ibr 155	. . . . 5 ⊢ ((𝜑 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑛) → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘(𝑛 + 1))) = (seq𝑀(𝑄, 𝐺, 𝑆)‘(𝑛 + 1))))
84	83	expcom 115	. . . 4 ⊢ (𝑛 ∈ (ℤ≥‘𝑀) → (𝜑 → ((𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑛) → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘(𝑛 + 1))) = (seq𝑀(𝑄, 𝐺, 𝑆)‘(𝑛 + 1)))))
85	84	a2d 26	. . 3 ⊢ (𝑛 ∈ (ℤ≥‘𝑀) → ((𝜑 → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑛)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑛)) → (𝜑 → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘(𝑛 + 1))) = (seq𝑀(𝑄, 𝐺, 𝑆)‘(𝑛 + 1)))))
86	6, 11, 16, 21, 41, 85	uzind4 9137	. 2 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (𝜑 → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑁)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑁)))
87	1, 86	mpcom 36	1 ⊢ (𝜑 → (𝐻‘(seq𝑀( + , 𝐹, 𝑆)‘𝑁)) = (seq𝑀(𝑄, 𝐺, 𝑆)‘𝑁))

Syntax hints:   → wi 4   ∧ wa 103   = wceq 1290   ∈ wcel 1439  ∀wral 2360  ‘cfv 5028  (class class class)co 5666  1c1 7412   + caddc 7414  ℤcz 8811  ℤ_≥cuz 9080  seqcseq4 9912

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-in1 580  ax-in2 581  ax-io 666  ax-5 1382  ax-7 1383  ax-gen 1384  ax-ie1 1428  ax-ie2 1429  ax-8 1441  ax-10 1442  ax-11 1443  ax-i12 1444  ax-bndl 1445  ax-4 1446  ax-13 1450  ax-14 1451  ax-17 1465  ax-i9 1469  ax-ial 1473  ax-i5r 1474  ax-ext 2071  ax-coll 3960  ax-sep 3963  ax-nul 3971  ax-pow 4015  ax-pr 4045  ax-un 4269  ax-setind 4366  ax-iinf 4416  ax-cnex 7497  ax-resscn 7498  ax-1cn 7499  ax-1re 7500  ax-icn 7501  ax-addcl 7502  ax-addrcl 7503  ax-mulcl 7504  ax-addcom 7506  ax-addass 7508  ax-distr 7510  ax-i2m1 7511  ax-0lt1 7512  ax-0id 7514  ax-rnegex 7515  ax-cnre 7517  ax-pre-ltirr 7518  ax-pre-ltwlin 7519  ax-pre-lttrn 7520  ax-pre-ltadd 7522

This theorem depends on definitions:  df-bi 116  df-3or 926  df-3an 927  df-tru 1293  df-fal 1296  df-nf 1396  df-sb 1694  df-eu 1952  df-mo 1953  df-clab 2076  df-cleq 2082  df-clel 2085  df-nfc 2218  df-ne 2257  df-nel 2352  df-ral 2365  df-rex 2366  df-reu 2367  df-rab 2369  df-v 2622  df-sbc 2842  df-csb 2935  df-dif 3002  df-un 3004  df-in 3006  df-ss 3013  df-nul 3288  df-pw 3435  df-sn 3456  df-pr 3457  df-op 3459  df-uni 3660  df-int 3695  df-iun 3738  df-br 3852  df-opab 3906  df-mpt 3907  df-tr 3943  df-id 4129  df-iord 4202  df-on 4204  df-ilim 4205  df-suc 4207  df-iom 4419  df-xp 4458  df-rel 4459  df-cnv 4460  df-co 4461  df-dm 4462  df-rn 4463  df-res 4464  df-ima 4465  df-iota 4993  df-fun 5030  df-fn 5031  df-f 5032  df-f1 5033  df-fo 5034  df-f1o 5035  df-fv 5036  df-riota 5622  df-ov 5669  df-oprab 5670  df-mpt2 5671  df-1st 5925  df-2nd 5926  df-recs 6084  df-frec 6170  df-pnf 7585  df-mnf 7586  df-xr 7587  df-ltxr 7588  df-le 7589  df-sub 7716  df-neg 7717  df-inn 8484  df-n0 8735  df-z 8812  df-uz 9081  df-iseq 9914

This theorem is referenced by:  iseqdistr  10006