seqpo - Mathbox for Jeff Madsen

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Theorem seqpo 32713

Description: Two ways to say that a sequence respects a partial order. (Contributed by Jeff Madsen, 2-Sep-2009.)

**Assertion**
Ref	Expression
seqpo	⊢ ((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) → (∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ↔ ∀𝑚 ∈ ℕ ∀𝑛 ∈ (ℤ_≥‘(𝑚 + 1))(𝐹‘𝑚)𝑅(𝐹‘𝑛)))

Distinct variable groups: 𝑚,𝐹,𝑛,𝑠 𝐴,𝑚,𝑛,𝑠 𝑅,𝑚,𝑛,𝑠

Proof of Theorem seqpo Dummy variables 𝑝 𝑞 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		fveq2 6103	. . . . . . . . . 10 ⊢ (𝑝 = (𝑚 + 1) → (𝐹‘𝑝) = (𝐹‘(𝑚 + 1)))
2	1	breq2d 4595	. . . . . . . . 9 ⊢ (𝑝 = (𝑚 + 1) → ((𝐹‘𝑚)𝑅(𝐹‘𝑝) ↔ (𝐹‘𝑚)𝑅(𝐹‘(𝑚 + 1))))
3	2	imbi2d 329	. . . . . . . 8 ⊢ (𝑝 = (𝑚 + 1) → ((((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ (∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑚 ∈ ℕ)) → (𝐹‘𝑚)𝑅(𝐹‘𝑝)) ↔ (((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ (∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑚 ∈ ℕ)) → (𝐹‘𝑚)𝑅(𝐹‘(𝑚 + 1)))))
4		fveq2 6103	. . . . . . . . . 10 ⊢ (𝑝 = 𝑞 → (𝐹‘𝑝) = (𝐹‘𝑞))
5	4	breq2d 4595	. . . . . . . . 9 ⊢ (𝑝 = 𝑞 → ((𝐹‘𝑚)𝑅(𝐹‘𝑝) ↔ (𝐹‘𝑚)𝑅(𝐹‘𝑞)))
6	5	imbi2d 329	. . . . . . . 8 ⊢ (𝑝 = 𝑞 → ((((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ (∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑚 ∈ ℕ)) → (𝐹‘𝑚)𝑅(𝐹‘𝑝)) ↔ (((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ (∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑚 ∈ ℕ)) → (𝐹‘𝑚)𝑅(𝐹‘𝑞))))
7		fveq2 6103	. . . . . . . . . 10 ⊢ (𝑝 = (𝑞 + 1) → (𝐹‘𝑝) = (𝐹‘(𝑞 + 1)))
8	7	breq2d 4595	. . . . . . . . 9 ⊢ (𝑝 = (𝑞 + 1) → ((𝐹‘𝑚)𝑅(𝐹‘𝑝) ↔ (𝐹‘𝑚)𝑅(𝐹‘(𝑞 + 1))))
9	8	imbi2d 329	. . . . . . . 8 ⊢ (𝑝 = (𝑞 + 1) → ((((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ (∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑚 ∈ ℕ)) → (𝐹‘𝑚)𝑅(𝐹‘𝑝)) ↔ (((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ (∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑚 ∈ ℕ)) → (𝐹‘𝑚)𝑅(𝐹‘(𝑞 + 1)))))
10		fveq2 6103	. . . . . . . . . 10 ⊢ (𝑝 = 𝑛 → (𝐹‘𝑝) = (𝐹‘𝑛))
11	10	breq2d 4595	. . . . . . . . 9 ⊢ (𝑝 = 𝑛 → ((𝐹‘𝑚)𝑅(𝐹‘𝑝) ↔ (𝐹‘𝑚)𝑅(𝐹‘𝑛)))
12	11	imbi2d 329	. . . . . . . 8 ⊢ (𝑝 = 𝑛 → ((((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ (∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑚 ∈ ℕ)) → (𝐹‘𝑚)𝑅(𝐹‘𝑝)) ↔ (((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ (∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑚 ∈ ℕ)) → (𝐹‘𝑚)𝑅(𝐹‘𝑛))))
13		fveq2 6103	. . . . . . . . . . . 12 ⊢ (𝑠 = 𝑚 → (𝐹‘𝑠) = (𝐹‘𝑚))
14		oveq1 6556	. . . . . . . . . . . . 13 ⊢ (𝑠 = 𝑚 → (𝑠 + 1) = (𝑚 + 1))
15	14	fveq2d 6107	. . . . . . . . . . . 12 ⊢ (𝑠 = 𝑚 → (𝐹‘(𝑠 + 1)) = (𝐹‘(𝑚 + 1)))
16	13, 15	breq12d 4596	. . . . . . . . . . 11 ⊢ (𝑠 = 𝑚 → ((𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ↔ (𝐹‘𝑚)𝑅(𝐹‘(𝑚 + 1))))
17	16	rspccva 3281	. . . . . . . . . 10 ⊢ ((∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑚 ∈ ℕ) → (𝐹‘𝑚)𝑅(𝐹‘(𝑚 + 1)))
18	17	adantl 481	. . . . . . . . 9 ⊢ (((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ (∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑚 ∈ ℕ)) → (𝐹‘𝑚)𝑅(𝐹‘(𝑚 + 1)))
19	18	a1i 11	. . . . . . . 8 ⊢ ((𝑚 + 1) ∈ ℤ → (((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ (∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑚 ∈ ℕ)) → (𝐹‘𝑚)𝑅(𝐹‘(𝑚 + 1))))
20		peano2nn 10909	. . . . . . . . . . . . . . . 16 ⊢ (𝑚 ∈ ℕ → (𝑚 + 1) ∈ ℕ)
21		elnnuz 11600	. . . . . . . . . . . . . . . 16 ⊢ ((𝑚 + 1) ∈ ℕ ↔ (𝑚 + 1) ∈ (ℤ_≥‘1))
22	20, 21	sylib 207	. . . . . . . . . . . . . . 15 ⊢ (𝑚 ∈ ℕ → (𝑚 + 1) ∈ (ℤ_≥‘1))
23		uztrn 11580	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑞 ∈ (ℤ_≥‘(𝑚 + 1)) ∧ (𝑚 + 1) ∈ (ℤ_≥‘1)) → 𝑞 ∈ (ℤ_≥‘1))
24		elnnuz 11600	. . . . . . . . . . . . . . . . 17 ⊢ (𝑞 ∈ ℕ ↔ 𝑞 ∈ (ℤ_≥‘1))
25	23, 24	sylibr 223	. . . . . . . . . . . . . . . 16 ⊢ ((𝑞 ∈ (ℤ_≥‘(𝑚 + 1)) ∧ (𝑚 + 1) ∈ (ℤ_≥‘1)) → 𝑞 ∈ ℕ)
26	25	expcom 450	. . . . . . . . . . . . . . 15 ⊢ ((𝑚 + 1) ∈ (ℤ_≥‘1) → (𝑞 ∈ (ℤ_≥‘(𝑚 + 1)) → 𝑞 ∈ ℕ))
27	22, 26	syl 17	. . . . . . . . . . . . . 14 ⊢ (𝑚 ∈ ℕ → (𝑞 ∈ (ℤ_≥‘(𝑚 + 1)) → 𝑞 ∈ ℕ))
28	27	imdistani 722	. . . . . . . . . . . . 13 ⊢ ((𝑚 ∈ ℕ ∧ 𝑞 ∈ (ℤ_≥‘(𝑚 + 1))) → (𝑚 ∈ ℕ ∧ 𝑞 ∈ ℕ))
29		fveq2 6103	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑠 = 𝑞 → (𝐹‘𝑠) = (𝐹‘𝑞))
30		oveq1 6556	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑠 = 𝑞 → (𝑠 + 1) = (𝑞 + 1))
31	30	fveq2d 6107	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑠 = 𝑞 → (𝐹‘(𝑠 + 1)) = (𝐹‘(𝑞 + 1)))
32	29, 31	breq12d 4596	. . . . . . . . . . . . . . . . 17 ⊢ (𝑠 = 𝑞 → ((𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ↔ (𝐹‘𝑞)𝑅(𝐹‘(𝑞 + 1))))
33	32	rspccva 3281	. . . . . . . . . . . . . . . 16 ⊢ ((∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑞 ∈ ℕ) → (𝐹‘𝑞)𝑅(𝐹‘(𝑞 + 1)))
34	33	ad2ant2l 778	. . . . . . . . . . . . . . 15 ⊢ ((((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ ∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1))) ∧ (𝑚 ∈ ℕ ∧ 𝑞 ∈ ℕ)) → (𝐹‘𝑞)𝑅(𝐹‘(𝑞 + 1)))
35	34	ex 449	. . . . . . . . . . . . . 14 ⊢ (((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ ∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1))) → ((𝑚 ∈ ℕ ∧ 𝑞 ∈ ℕ) → (𝐹‘𝑞)𝑅(𝐹‘(𝑞 + 1))))
36		ffvelrn 6265	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝐹:ℕ⟶𝐴 ∧ 𝑚 ∈ ℕ) → (𝐹‘𝑚) ∈ 𝐴)
37	36	adantrr 749	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝐹:ℕ⟶𝐴 ∧ (𝑚 ∈ ℕ ∧ 𝑞 ∈ ℕ)) → (𝐹‘𝑚) ∈ 𝐴)
38		ffvelrn 6265	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝐹:ℕ⟶𝐴 ∧ 𝑞 ∈ ℕ) → (𝐹‘𝑞) ∈ 𝐴)
39	38	adantrl 748	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝐹:ℕ⟶𝐴 ∧ (𝑚 ∈ ℕ ∧ 𝑞 ∈ ℕ)) → (𝐹‘𝑞) ∈ 𝐴)
40		peano2nn 10909	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑞 ∈ ℕ → (𝑞 + 1) ∈ ℕ)
41		ffvelrn 6265	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝐹:ℕ⟶𝐴 ∧ (𝑞 + 1) ∈ ℕ) → (𝐹‘(𝑞 + 1)) ∈ 𝐴)
42	40, 41	sylan2 490	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝐹:ℕ⟶𝐴 ∧ 𝑞 ∈ ℕ) → (𝐹‘(𝑞 + 1)) ∈ 𝐴)
43	42	adantrl 748	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝐹:ℕ⟶𝐴 ∧ (𝑚 ∈ ℕ ∧ 𝑞 ∈ ℕ)) → (𝐹‘(𝑞 + 1)) ∈ 𝐴)
44	37, 39, 43	3jca 1235	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐹:ℕ⟶𝐴 ∧ (𝑚 ∈ ℕ ∧ 𝑞 ∈ ℕ)) → ((𝐹‘𝑚) ∈ 𝐴 ∧ (𝐹‘𝑞) ∈ 𝐴 ∧ (𝐹‘(𝑞 + 1)) ∈ 𝐴))
45		potr 4971	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝑅 Po 𝐴 ∧ ((𝐹‘𝑚) ∈ 𝐴 ∧ (𝐹‘𝑞) ∈ 𝐴 ∧ (𝐹‘(𝑞 + 1)) ∈ 𝐴)) → (((𝐹‘𝑚)𝑅(𝐹‘𝑞) ∧ (𝐹‘𝑞)𝑅(𝐹‘(𝑞 + 1))) → (𝐹‘𝑚)𝑅(𝐹‘(𝑞 + 1))))
46	45	expcomd 453	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑅 Po 𝐴 ∧ ((𝐹‘𝑚) ∈ 𝐴 ∧ (𝐹‘𝑞) ∈ 𝐴 ∧ (𝐹‘(𝑞 + 1)) ∈ 𝐴)) → ((𝐹‘𝑞)𝑅(𝐹‘(𝑞 + 1)) → ((𝐹‘𝑚)𝑅(𝐹‘𝑞) → (𝐹‘𝑚)𝑅(𝐹‘(𝑞 + 1)))))
47	46	ex 449	. . . . . . . . . . . . . . . . 17 ⊢ (𝑅 Po 𝐴 → (((𝐹‘𝑚) ∈ 𝐴 ∧ (𝐹‘𝑞) ∈ 𝐴 ∧ (𝐹‘(𝑞 + 1)) ∈ 𝐴) → ((𝐹‘𝑞)𝑅(𝐹‘(𝑞 + 1)) → ((𝐹‘𝑚)𝑅(𝐹‘𝑞) → (𝐹‘𝑚)𝑅(𝐹‘(𝑞 + 1))))))
48	44, 47	syl5 33	. . . . . . . . . . . . . . . 16 ⊢ (𝑅 Po 𝐴 → ((𝐹:ℕ⟶𝐴 ∧ (𝑚 ∈ ℕ ∧ 𝑞 ∈ ℕ)) → ((𝐹‘𝑞)𝑅(𝐹‘(𝑞 + 1)) → ((𝐹‘𝑚)𝑅(𝐹‘𝑞) → (𝐹‘𝑚)𝑅(𝐹‘(𝑞 + 1))))))
49	48	expdimp 452	. . . . . . . . . . . . . . 15 ⊢ ((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) → ((𝑚 ∈ ℕ ∧ 𝑞 ∈ ℕ) → ((𝐹‘𝑞)𝑅(𝐹‘(𝑞 + 1)) → ((𝐹‘𝑚)𝑅(𝐹‘𝑞) → (𝐹‘𝑚)𝑅(𝐹‘(𝑞 + 1))))))
50	49	adantr 480	. . . . . . . . . . . . . 14 ⊢ (((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ ∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1))) → ((𝑚 ∈ ℕ ∧ 𝑞 ∈ ℕ) → ((𝐹‘𝑞)𝑅(𝐹‘(𝑞 + 1)) → ((𝐹‘𝑚)𝑅(𝐹‘𝑞) → (𝐹‘𝑚)𝑅(𝐹‘(𝑞 + 1))))))
51	35, 50	mpdd 42	. . . . . . . . . . . . 13 ⊢ (((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ ∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1))) → ((𝑚 ∈ ℕ ∧ 𝑞 ∈ ℕ) → ((𝐹‘𝑚)𝑅(𝐹‘𝑞) → (𝐹‘𝑚)𝑅(𝐹‘(𝑞 + 1)))))
52	28, 51	syl5 33	. . . . . . . . . . . 12 ⊢ (((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ ∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1))) → ((𝑚 ∈ ℕ ∧ 𝑞 ∈ (ℤ_≥‘(𝑚 + 1))) → ((𝐹‘𝑚)𝑅(𝐹‘𝑞) → (𝐹‘𝑚)𝑅(𝐹‘(𝑞 + 1)))))
53	52	expdimp 452	. . . . . . . . . . 11 ⊢ ((((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ ∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1))) ∧ 𝑚 ∈ ℕ) → (𝑞 ∈ (ℤ_≥‘(𝑚 + 1)) → ((𝐹‘𝑚)𝑅(𝐹‘𝑞) → (𝐹‘𝑚)𝑅(𝐹‘(𝑞 + 1)))))
54	53	anasss 677	. . . . . . . . . 10 ⊢ (((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ (∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑚 ∈ ℕ)) → (𝑞 ∈ (ℤ_≥‘(𝑚 + 1)) → ((𝐹‘𝑚)𝑅(𝐹‘𝑞) → (𝐹‘𝑚)𝑅(𝐹‘(𝑞 + 1)))))
55	54	com12 32	. . . . . . . . 9 ⊢ (𝑞 ∈ (ℤ_≥‘(𝑚 + 1)) → (((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ (∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑚 ∈ ℕ)) → ((𝐹‘𝑚)𝑅(𝐹‘𝑞) → (𝐹‘𝑚)𝑅(𝐹‘(𝑞 + 1)))))
56	55	a2d 29	. . . . . . . 8 ⊢ (𝑞 ∈ (ℤ_≥‘(𝑚 + 1)) → ((((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ (∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑚 ∈ ℕ)) → (𝐹‘𝑚)𝑅(𝐹‘𝑞)) → (((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ (∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑚 ∈ ℕ)) → (𝐹‘𝑚)𝑅(𝐹‘(𝑞 + 1)))))
57	3, 6, 9, 12, 19, 56	uzind4 11622	. . . . . . 7 ⊢ (𝑛 ∈ (ℤ_≥‘(𝑚 + 1)) → (((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ (∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑚 ∈ ℕ)) → (𝐹‘𝑚)𝑅(𝐹‘𝑛)))
58	57	com12 32	. . . . . 6 ⊢ (((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ (∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑚 ∈ ℕ)) → (𝑛 ∈ (ℤ_≥‘(𝑚 + 1)) → (𝐹‘𝑚)𝑅(𝐹‘𝑛)))
59	58	ralrimiv 2948	. . . . 5 ⊢ (((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ (∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑚 ∈ ℕ)) → ∀𝑛 ∈ (ℤ_≥‘(𝑚 + 1))(𝐹‘𝑚)𝑅(𝐹‘𝑛))
60	59	anassrs 678	. . . 4 ⊢ ((((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ ∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1))) ∧ 𝑚 ∈ ℕ) → ∀𝑛 ∈ (ℤ_≥‘(𝑚 + 1))(𝐹‘𝑚)𝑅(𝐹‘𝑛))
61	60	ralrimiva 2949	. . 3 ⊢ (((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) ∧ ∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1))) → ∀𝑚 ∈ ℕ ∀𝑛 ∈ (ℤ_≥‘(𝑚 + 1))(𝐹‘𝑚)𝑅(𝐹‘𝑛))
62	61	ex 449	. 2 ⊢ ((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) → (∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) → ∀𝑚 ∈ ℕ ∀𝑛 ∈ (ℤ_≥‘(𝑚 + 1))(𝐹‘𝑚)𝑅(𝐹‘𝑛)))
63		oveq1 6556	. . . . . . . 8 ⊢ (𝑚 = 𝑠 → (𝑚 + 1) = (𝑠 + 1))
64	63	fveq2d 6107	. . . . . . 7 ⊢ (𝑚 = 𝑠 → (ℤ_≥‘(𝑚 + 1)) = (ℤ_≥‘(𝑠 + 1)))
65		fveq2 6103	. . . . . . . 8 ⊢ (𝑚 = 𝑠 → (𝐹‘𝑚) = (𝐹‘𝑠))
66	65	breq1d 4593	. . . . . . 7 ⊢ (𝑚 = 𝑠 → ((𝐹‘𝑚)𝑅(𝐹‘𝑛) ↔ (𝐹‘𝑠)𝑅(𝐹‘𝑛)))
67	64, 66	raleqbidv 3129	. . . . . 6 ⊢ (𝑚 = 𝑠 → (∀𝑛 ∈ (ℤ_≥‘(𝑚 + 1))(𝐹‘𝑚)𝑅(𝐹‘𝑛) ↔ ∀𝑛 ∈ (ℤ_≥‘(𝑠 + 1))(𝐹‘𝑠)𝑅(𝐹‘𝑛)))
68	67	rspcv 3278	. . . . 5 ⊢ (𝑠 ∈ ℕ → (∀𝑚 ∈ ℕ ∀𝑛 ∈ (ℤ_≥‘(𝑚 + 1))(𝐹‘𝑚)𝑅(𝐹‘𝑛) → ∀𝑛 ∈ (ℤ_≥‘(𝑠 + 1))(𝐹‘𝑠)𝑅(𝐹‘𝑛)))
69	68	imdistanri 723	. . . 4 ⊢ ((∀𝑚 ∈ ℕ ∀𝑛 ∈ (ℤ_≥‘(𝑚 + 1))(𝐹‘𝑚)𝑅(𝐹‘𝑛) ∧ 𝑠 ∈ ℕ) → (∀𝑛 ∈ (ℤ_≥‘(𝑠 + 1))(𝐹‘𝑠)𝑅(𝐹‘𝑛) ∧ 𝑠 ∈ ℕ))
70		peano2nn 10909	. . . . . . 7 ⊢ (𝑠 ∈ ℕ → (𝑠 + 1) ∈ ℕ)
71	70	nnzd 11357	. . . . . 6 ⊢ (𝑠 ∈ ℕ → (𝑠 + 1) ∈ ℤ)
72		uzid 11578	. . . . . 6 ⊢ ((𝑠 + 1) ∈ ℤ → (𝑠 + 1) ∈ (ℤ_≥‘(𝑠 + 1)))
73	71, 72	syl 17	. . . . 5 ⊢ (𝑠 ∈ ℕ → (𝑠 + 1) ∈ (ℤ_≥‘(𝑠 + 1)))
74		fveq2 6103	. . . . . . 7 ⊢ (𝑛 = (𝑠 + 1) → (𝐹‘𝑛) = (𝐹‘(𝑠 + 1)))
75	74	breq2d 4595	. . . . . 6 ⊢ (𝑛 = (𝑠 + 1) → ((𝐹‘𝑠)𝑅(𝐹‘𝑛) ↔ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1))))
76	75	rspccva 3281	. . . . 5 ⊢ ((∀𝑛 ∈ (ℤ_≥‘(𝑠 + 1))(𝐹‘𝑠)𝑅(𝐹‘𝑛) ∧ (𝑠 + 1) ∈ (ℤ_≥‘(𝑠 + 1))) → (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)))
77	73, 76	sylan2 490	. . . 4 ⊢ ((∀𝑛 ∈ (ℤ_≥‘(𝑠 + 1))(𝐹‘𝑠)𝑅(𝐹‘𝑛) ∧ 𝑠 ∈ ℕ) → (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)))
78	69, 77	syl 17	. . 3 ⊢ ((∀𝑚 ∈ ℕ ∀𝑛 ∈ (ℤ_≥‘(𝑚 + 1))(𝐹‘𝑚)𝑅(𝐹‘𝑛) ∧ 𝑠 ∈ ℕ) → (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)))
79	78	ralrimiva 2949	. 2 ⊢ (∀𝑚 ∈ ℕ ∀𝑛 ∈ (ℤ_≥‘(𝑚 + 1))(𝐹‘𝑚)𝑅(𝐹‘𝑛) → ∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)))
80	62, 79	impbid1 214	1 ⊢ ((𝑅 Po 𝐴 ∧ 𝐹:ℕ⟶𝐴) → (∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ↔ ∀𝑚 ∈ ℕ ∀𝑛 ∈ (ℤ_≥‘(𝑚 + 1))(𝐹‘𝑚)𝑅(𝐹‘𝑛)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 195 ∧ wa 383 ∧ w3a 1031 = wceq 1475 ∈ wcel 1977 ∀wral 2896 class class class wbr 4583 Po wpo 4957 ⟶wf 5800 ‘cfv 5804 (class class class)co 6549 1c1 9816 + caddc 9818 ℕcn 10897 ℤcz 11254 ℤ_≥cuz 11563

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-cnex 9871 ax-resscn 9872 ax-1cn 9873 ax-icn 9874 ax-addcl 9875 ax-addrcl 9876 ax-mulcl 9877 ax-mulrcl 9878 ax-mulcom 9879 ax-addass 9880 ax-mulass 9881 ax-distr 9882 ax-i2m1 9883 ax-1ne0 9884 ax-1rid 9885 ax-rnegex 9886 ax-rrecex 9887 ax-cnre 9888 ax-pre-lttri 9889 ax-pre-lttrn 9890 ax-pre-ltadd 9891 ax-pre-mulgt0 9892

This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-nel 2783 df-ral 2901 df-rex 2902 df-reu 2903 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-pss 3556 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-tp 4130 df-op 4132 df-uni 4373 df-iun 4457 df-br 4584 df-opab 4644 df-mpt 4645 df-tr 4681 df-eprel 4949 df-id 4953 df-po 4959 df-so 4960 df-fr 4997 df-we 4999 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-pred 5597 df-ord 5643 df-on 5644 df-lim 5645 df-suc 5646 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-riota 6511 df-ov 6552 df-oprab 6553 df-mpt2 6554 df-om 6958 df-wrecs 7294 df-recs 7355 df-rdg 7393 df-er 7629 df-en 7842 df-dom 7843 df-sdom 7844 df-pnf 9955 df-mnf 9956 df-xr 9957 df-ltxr 9958 df-le 9959 df-sub 10147 df-neg 10148 df-nn 10898 df-n0 11170 df-z 11255 df-uz 11564

This theorem is referenced by: incsequz2 32715

W3C validator