seqpo - Mathbox for Jeff Madsen

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Theorem seqpo 37109

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 6882	. . . . . . . . . 10 ⊢ (𝑝 = (𝑚 + 1) → (𝐹‘𝑝) = (𝐹‘(𝑚 + 1)))
2	1	breq2d 5151	. . . . . . . . 9 ⊢ (𝑝 = (𝑚 + 1) → ((𝐹‘𝑚)𝑅(𝐹‘𝑝) ↔ (𝐹‘𝑚)𝑅(𝐹‘(𝑚 + 1))))
3	2	imbi2d 340	. . . . . . . 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 6882	. . . . . . . . . 10 ⊢ (𝑝 = 𝑞 → (𝐹‘𝑝) = (𝐹‘𝑞))
5	4	breq2d 5151	. . . . . . . . 9 ⊢ (𝑝 = 𝑞 → ((𝐹‘𝑚)𝑅(𝐹‘𝑝) ↔ (𝐹‘𝑚)𝑅(𝐹‘𝑞)))
6	5	imbi2d 340	. . . . . . . 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 6882	. . . . . . . . . 10 ⊢ (𝑝 = (𝑞 + 1) → (𝐹‘𝑝) = (𝐹‘(𝑞 + 1)))
8	7	breq2d 5151	. . . . . . . . 9 ⊢ (𝑝 = (𝑞 + 1) → ((𝐹‘𝑚)𝑅(𝐹‘𝑝) ↔ (𝐹‘𝑚)𝑅(𝐹‘(𝑞 + 1))))
9	8	imbi2d 340	. . . . . . . 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 6882	. . . . . . . . . 10 ⊢ (𝑝 = 𝑛 → (𝐹‘𝑝) = (𝐹‘𝑛))
11	10	breq2d 5151	. . . . . . . . 9 ⊢ (𝑝 = 𝑛 → ((𝐹‘𝑚)𝑅(𝐹‘𝑝) ↔ (𝐹‘𝑚)𝑅(𝐹‘𝑛)))
12	11	imbi2d 340	. . . . . . . 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 6882	. . . . . . . . . . . 12 ⊢ (𝑠 = 𝑚 → (𝐹‘𝑠) = (𝐹‘𝑚))
14		fvoveq1 7425	. . . . . . . . . . . 12 ⊢ (𝑠 = 𝑚 → (𝐹‘(𝑠 + 1)) = (𝐹‘(𝑚 + 1)))
15	13, 14	breq12d 5152	. . . . . . . . . . 11 ⊢ (𝑠 = 𝑚 → ((𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ↔ (𝐹‘𝑚)𝑅(𝐹‘(𝑚 + 1))))
16	15	rspccva 3603	. . . . . . . . . 10 ⊢ ((∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑚 ∈ ℕ) → (𝐹‘𝑚)𝑅(𝐹‘(𝑚 + 1)))
17	16	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)))
18	17	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))))
19		peano2nn 12222	. . . . . . . . . . . . . . . 16 ⊢ (𝑚 ∈ ℕ → (𝑚 + 1) ∈ ℕ)
20		elnnuz 12864	. . . . . . . . . . . . . . . 16 ⊢ ((𝑚 + 1) ∈ ℕ ↔ (𝑚 + 1) ∈ (ℤ_≥‘1))
21	19, 20	sylib 217	. . . . . . . . . . . . . . 15 ⊢ (𝑚 ∈ ℕ → (𝑚 + 1) ∈ (ℤ_≥‘1))
22		uztrn 12838	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑞 ∈ (ℤ_≥‘(𝑚 + 1)) ∧ (𝑚 + 1) ∈ (ℤ_≥‘1)) → 𝑞 ∈ (ℤ_≥‘1))
23		elnnuz 12864	. . . . . . . . . . . . . . . . 17 ⊢ (𝑞 ∈ ℕ ↔ 𝑞 ∈ (ℤ_≥‘1))
24	22, 23	sylibr 233	. . . . . . . . . . . . . . . 16 ⊢ ((𝑞 ∈ (ℤ_≥‘(𝑚 + 1)) ∧ (𝑚 + 1) ∈ (ℤ_≥‘1)) → 𝑞 ∈ ℕ)
25	24	expcom 413	. . . . . . . . . . . . . . 15 ⊢ ((𝑚 + 1) ∈ (ℤ_≥‘1) → (𝑞 ∈ (ℤ_≥‘(𝑚 + 1)) → 𝑞 ∈ ℕ))
26	21, 25	syl 17	. . . . . . . . . . . . . 14 ⊢ (𝑚 ∈ ℕ → (𝑞 ∈ (ℤ_≥‘(𝑚 + 1)) → 𝑞 ∈ ℕ))
27	26	imdistani 568	. . . . . . . . . . . . 13 ⊢ ((𝑚 ∈ ℕ ∧ 𝑞 ∈ (ℤ_≥‘(𝑚 + 1))) → (𝑚 ∈ ℕ ∧ 𝑞 ∈ ℕ))
28		fveq2 6882	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑠 = 𝑞 → (𝐹‘𝑠) = (𝐹‘𝑞))
29		fvoveq1 7425	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑠 = 𝑞 → (𝐹‘(𝑠 + 1)) = (𝐹‘(𝑞 + 1)))
30	28, 29	breq12d 5152	. . . . . . . . . . . . . . . . 17 ⊢ (𝑠 = 𝑞 → ((𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ↔ (𝐹‘𝑞)𝑅(𝐹‘(𝑞 + 1))))
31	30	rspccva 3603	. . . . . . . . . . . . . . . 16 ⊢ ((∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑞 ∈ ℕ) → (𝐹‘𝑞)𝑅(𝐹‘(𝑞 + 1)))
32	31	ad2ant2l 743	. . . . . . . . . . . . . . 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)))
33	32	ex 412	. . . . . . . . . . . . . 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))))
34		ffvelcdm 7074	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝐹:ℕ⟶𝐴 ∧ 𝑚 ∈ ℕ) → (𝐹‘𝑚) ∈ 𝐴)
35	34	adantrr 714	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝐹:ℕ⟶𝐴 ∧ (𝑚 ∈ ℕ ∧ 𝑞 ∈ ℕ)) → (𝐹‘𝑚) ∈ 𝐴)
36		ffvelcdm 7074	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝐹:ℕ⟶𝐴 ∧ 𝑞 ∈ ℕ) → (𝐹‘𝑞) ∈ 𝐴)
37	36	adantrl 713	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝐹:ℕ⟶𝐴 ∧ (𝑚 ∈ ℕ ∧ 𝑞 ∈ ℕ)) → (𝐹‘𝑞) ∈ 𝐴)
38		peano2nn 12222	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑞 ∈ ℕ → (𝑞 + 1) ∈ ℕ)
39		ffvelcdm 7074	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝐹:ℕ⟶𝐴 ∧ (𝑞 + 1) ∈ ℕ) → (𝐹‘(𝑞 + 1)) ∈ 𝐴)
40	38, 39	sylan2 592	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝐹:ℕ⟶𝐴 ∧ 𝑞 ∈ ℕ) → (𝐹‘(𝑞 + 1)) ∈ 𝐴)
41	40	adantrl 713	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝐹:ℕ⟶𝐴 ∧ (𝑚 ∈ ℕ ∧ 𝑞 ∈ ℕ)) → (𝐹‘(𝑞 + 1)) ∈ 𝐴)
42	35, 37, 41	3jca 1125	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐹:ℕ⟶𝐴 ∧ (𝑚 ∈ ℕ ∧ 𝑞 ∈ ℕ)) → ((𝐹‘𝑚) ∈ 𝐴 ∧ (𝐹‘𝑞) ∈ 𝐴 ∧ (𝐹‘(𝑞 + 1)) ∈ 𝐴))
43		potr 5592	. . . . . . . . . . . . . . . . . . 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))))
44	43	expcomd 416	. . . . . . . . . . . . . . . . . 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)))))
45	44	ex 412	. . . . . . . . . . . . . . . . 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))))))
46	42, 45	syl5 34	. . . . . . . . . . . . . . . 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))))))
47	46	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))))))
48	47	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))))))
49	33, 48	mpdd 43	. . . . . . . . . . . . 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)))))
50	27, 49	syl5 34	. . . . . . . . . . . 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)))))
51	50	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)))))
52	51	anasss 466	. . . . . . . . . 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)))))
53	52	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)))))
54	53	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)))))
55	3, 6, 9, 12, 18, 54	uzind4 12888	. . . . . . 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)))
56	55	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)))
57	56	ralrimiv 3137	. . . . 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))
58	57	anassrs 467	. . . 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))
59	58	ralrimiva 3138	. . 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))
60	59	ex 412	. 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)))
61		fvoveq1 7425	. . . . . . 7 ⊢ (𝑚 = 𝑠 → (ℤ_≥‘(𝑚 + 1)) = (ℤ_≥‘(𝑠 + 1)))
62		fveq2 6882	. . . . . . . 8 ⊢ (𝑚 = 𝑠 → (𝐹‘𝑚) = (𝐹‘𝑠))
63	62	breq1d 5149	. . . . . . 7 ⊢ (𝑚 = 𝑠 → ((𝐹‘𝑚)𝑅(𝐹‘𝑛) ↔ (𝐹‘𝑠)𝑅(𝐹‘𝑛)))
64	61, 63	raleqbidv 3334	. . . . . 6 ⊢ (𝑚 = 𝑠 → (∀𝑛 ∈ (ℤ_≥‘(𝑚 + 1))(𝐹‘𝑚)𝑅(𝐹‘𝑛) ↔ ∀𝑛 ∈ (ℤ_≥‘(𝑠 + 1))(𝐹‘𝑠)𝑅(𝐹‘𝑛)))
65	64	rspcv 3600	. . . . 5 ⊢ (𝑠 ∈ ℕ → (∀𝑚 ∈ ℕ ∀𝑛 ∈ (ℤ_≥‘(𝑚 + 1))(𝐹‘𝑚)𝑅(𝐹‘𝑛) → ∀𝑛 ∈ (ℤ_≥‘(𝑠 + 1))(𝐹‘𝑠)𝑅(𝐹‘𝑛)))
66	65	imdistanri 569	. . . 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))
67		peano2nn 12222	. . . . . . 7 ⊢ (𝑠 ∈ ℕ → (𝑠 + 1) ∈ ℕ)
68	67	nnzd 12583	. . . . . 6 ⊢ (𝑠 ∈ ℕ → (𝑠 + 1) ∈ ℤ)
69		uzid 12835	. . . . . 6 ⊢ ((𝑠 + 1) ∈ ℤ → (𝑠 + 1) ∈ (ℤ_≥‘(𝑠 + 1)))
70	68, 69	syl 17	. . . . 5 ⊢ (𝑠 ∈ ℕ → (𝑠 + 1) ∈ (ℤ_≥‘(𝑠 + 1)))
71		fveq2 6882	. . . . . . 7 ⊢ (𝑛 = (𝑠 + 1) → (𝐹‘𝑛) = (𝐹‘(𝑠 + 1)))
72	71	breq2d 5151	. . . . . 6 ⊢ (𝑛 = (𝑠 + 1) → ((𝐹‘𝑠)𝑅(𝐹‘𝑛) ↔ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1))))
73	72	rspccva 3603	. . . . 5 ⊢ ((∀𝑛 ∈ (ℤ_≥‘(𝑠 + 1))(𝐹‘𝑠)𝑅(𝐹‘𝑛) ∧ (𝑠 + 1) ∈ (ℤ_≥‘(𝑠 + 1))) → (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)))
74	70, 73	sylan2 592	. . . 4 ⊢ ((∀𝑛 ∈ (ℤ_≥‘(𝑠 + 1))(𝐹‘𝑠)𝑅(𝐹‘𝑛) ∧ 𝑠 ∈ ℕ) → (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)))
75	66, 74	syl 17	. . 3 ⊢ ((∀𝑚 ∈ ℕ ∀𝑛 ∈ (ℤ_≥‘(𝑚 + 1))(𝐹‘𝑚)𝑅(𝐹‘𝑛) ∧ 𝑠 ∈ ℕ) → (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)))
76	75	ralrimiva 3138	. 2 ⊢ (∀𝑚 ∈ ℕ ∀𝑛 ∈ (ℤ_≥‘(𝑚 + 1))(𝐹‘𝑚)𝑅(𝐹‘𝑛) → ∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)))
77	60, 76	impbid1 224	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 205 ∧ wa 395 ∧ w3a 1084 = wceq 1533 ∈ wcel 2098 ∀wral 3053 class class class wbr 5139 Po wpo 5577 ⟶wf 6530 ‘cfv 6534 (class class class)co 7402 1c1 11108 + caddc 11110 ℕcn 12210 ℤcz 12556 ℤ_≥cuz 12820

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2163 ax-ext 2695 ax-sep 5290 ax-nul 5297 ax-pow 5354 ax-pr 5418 ax-un 7719 ax-cnex 11163 ax-resscn 11164 ax-1cn 11165 ax-icn 11166 ax-addcl 11167 ax-addrcl 11168 ax-mulcl 11169 ax-mulrcl 11170 ax-mulcom 11171 ax-addass 11172 ax-mulass 11173 ax-distr 11174 ax-i2m1 11175 ax-1ne0 11176 ax-1rid 11177 ax-rnegex 11178 ax-rrecex 11179 ax-cnre 11180 ax-pre-lttri 11181 ax-pre-lttrn 11182 ax-pre-ltadd 11183 ax-pre-mulgt0 11184

This theorem depends on definitions: df-bi 206 df-an 396 df-or 845 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2526 df-eu 2555 df-clab 2702 df-cleq 2716 df-clel 2802 df-nfc 2877 df-ne 2933 df-nel 3039 df-ral 3054 df-rex 3063 df-reu 3369 df-rab 3425 df-v 3468 df-sbc 3771 df-csb 3887 df-dif 3944 df-un 3946 df-in 3948 df-ss 3958 df-pss 3960 df-nul 4316 df-if 4522 df-pw 4597 df-sn 4622 df-pr 4624 df-op 4628 df-uni 4901 df-iun 4990 df-br 5140 df-opab 5202 df-mpt 5223 df-tr 5257 df-id 5565 df-eprel 5571 df-po 5579 df-so 5580 df-fr 5622 df-we 5624 df-xp 5673 df-rel 5674 df-cnv 5675 df-co 5676 df-dm 5677 df-rn 5678 df-res 5679 df-ima 5680 df-pred 6291 df-ord 6358 df-on 6359 df-lim 6360 df-suc 6361 df-iota 6486 df-fun 6536 df-fn 6537 df-f 6538 df-f1 6539 df-fo 6540 df-f1o 6541 df-fv 6542 df-riota 7358 df-ov 7405 df-oprab 7406 df-mpo 7407 df-om 7850 df-2nd 7970 df-frecs 8262 df-wrecs 8293 df-recs 8367 df-rdg 8406 df-er 8700 df-en 8937 df-dom 8938 df-sdom 8939 df-pnf 11248 df-mnf 11249 df-xr 11250 df-ltxr 11251 df-le 11252 df-sub 11444 df-neg 11445 df-nn 12211 df-n0 12471 df-z 12557 df-uz 12821

This theorem is referenced by: incsequz2 37111

W3C validator