seqpo - Mathbox for Jeff Madsen

	Mathbox for Jeff Madsen		< Previous Next > Nearby theorems
Mirrors > Home > MPE Home > Th. List > Mathboxes > seqpo		Structured version Visualization version GIF version

Theorem seqpo 35905

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 6774	. . . . . . . . . 10 ⊢ (𝑝 = (𝑚 + 1) → (𝐹‘𝑝) = (𝐹‘(𝑚 + 1)))
2	1	breq2d 5086	. . . . . . . . 9 ⊢ (𝑝 = (𝑚 + 1) → ((𝐹‘𝑚)𝑅(𝐹‘𝑝) ↔ (𝐹‘𝑚)𝑅(𝐹‘(𝑚 + 1))))
3	2	imbi2d 341	. . . . . . . 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 6774	. . . . . . . . . 10 ⊢ (𝑝 = 𝑞 → (𝐹‘𝑝) = (𝐹‘𝑞))
5	4	breq2d 5086	. . . . . . . . 9 ⊢ (𝑝 = 𝑞 → ((𝐹‘𝑚)𝑅(𝐹‘𝑝) ↔ (𝐹‘𝑚)𝑅(𝐹‘𝑞)))
6	5	imbi2d 341	. . . . . . . 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 6774	. . . . . . . . . 10 ⊢ (𝑝 = (𝑞 + 1) → (𝐹‘𝑝) = (𝐹‘(𝑞 + 1)))
8	7	breq2d 5086	. . . . . . . . 9 ⊢ (𝑝 = (𝑞 + 1) → ((𝐹‘𝑚)𝑅(𝐹‘𝑝) ↔ (𝐹‘𝑚)𝑅(𝐹‘(𝑞 + 1))))
9	8	imbi2d 341	. . . . . . . 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 6774	. . . . . . . . . 10 ⊢ (𝑝 = 𝑛 → (𝐹‘𝑝) = (𝐹‘𝑛))
11	10	breq2d 5086	. . . . . . . . 9 ⊢ (𝑝 = 𝑛 → ((𝐹‘𝑚)𝑅(𝐹‘𝑝) ↔ (𝐹‘𝑚)𝑅(𝐹‘𝑛)))
12	11	imbi2d 341	. . . . . . . 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 6774	. . . . . . . . . . . 12 ⊢ (𝑠 = 𝑚 → (𝐹‘𝑠) = (𝐹‘𝑚))
14		fvoveq1 7298	. . . . . . . . . . . 12 ⊢ (𝑠 = 𝑚 → (𝐹‘(𝑠 + 1)) = (𝐹‘(𝑚 + 1)))
15	13, 14	breq12d 5087	. . . . . . . . . . 11 ⊢ (𝑠 = 𝑚 → ((𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ↔ (𝐹‘𝑚)𝑅(𝐹‘(𝑚 + 1))))
16	15	rspccva 3560	. . . . . . . . . 10 ⊢ ((∀𝑠 ∈ ℕ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ∧ 𝑚 ∈ ℕ) → (𝐹‘𝑚)𝑅(𝐹‘(𝑚 + 1)))
17	16	adantl 482	. . . . . . . . 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 11985	. . . . . . . . . . . . . . . 16 ⊢ (𝑚 ∈ ℕ → (𝑚 + 1) ∈ ℕ)
20		elnnuz 12622	. . . . . . . . . . . . . . . 16 ⊢ ((𝑚 + 1) ∈ ℕ ↔ (𝑚 + 1) ∈ (ℤ_≥‘1))
21	19, 20	sylib 217	. . . . . . . . . . . . . . 15 ⊢ (𝑚 ∈ ℕ → (𝑚 + 1) ∈ (ℤ_≥‘1))
22		uztrn 12600	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑞 ∈ (ℤ_≥‘(𝑚 + 1)) ∧ (𝑚 + 1) ∈ (ℤ_≥‘1)) → 𝑞 ∈ (ℤ_≥‘1))
23		elnnuz 12622	. . . . . . . . . . . . . . . . 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 414	. . . . . . . . . . . . . . 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 569	. . . . . . . . . . . . 13 ⊢ ((𝑚 ∈ ℕ ∧ 𝑞 ∈ (ℤ_≥‘(𝑚 + 1))) → (𝑚 ∈ ℕ ∧ 𝑞 ∈ ℕ))
28		fveq2 6774	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑠 = 𝑞 → (𝐹‘𝑠) = (𝐹‘𝑞))
29		fvoveq1 7298	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑠 = 𝑞 → (𝐹‘(𝑠 + 1)) = (𝐹‘(𝑞 + 1)))
30	28, 29	breq12d 5087	. . . . . . . . . . . . . . . . 17 ⊢ (𝑠 = 𝑞 → ((𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1)) ↔ (𝐹‘𝑞)𝑅(𝐹‘(𝑞 + 1))))
31	30	rspccva 3560	. . . . . . . . . . . . . . . 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 413	. . . . . . . . . . . . . 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		ffvelrn 6959	. . . . . . . . . . . . . . . . . . 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		ffvelrn 6959	. . . . . . . . . . . . . . . . . . 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 11985	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑞 ∈ ℕ → (𝑞 + 1) ∈ ℕ)
39		ffvelrn 6959	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝐹:ℕ⟶𝐴 ∧ (𝑞 + 1) ∈ ℕ) → (𝐹‘(𝑞 + 1)) ∈ 𝐴)
40	38, 39	sylan2 593	. . . . . . . . . . . . . . . . . . 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 1127	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐹:ℕ⟶𝐴 ∧ (𝑚 ∈ ℕ ∧ 𝑞 ∈ ℕ)) → ((𝐹‘𝑚) ∈ 𝐴 ∧ (𝐹‘𝑞) ∈ 𝐴 ∧ (𝐹‘(𝑞 + 1)) ∈ 𝐴))
43		potr 5516	. . . . . . . . . . . . . . . . . . 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 417	. . . . . . . . . . . . . . . . . 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 413	. . . . . . . . . . . . . . . . 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 453	. . . . . . . . . . . . . . 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 481	. . . . . . . . . . . . . 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 453	. . . . . . . . . . 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 467	. . . . . . . . . 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 12646	. . . . . . 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 3102	. . . . 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 468	. . . 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 3103	. . 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 413	. 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 7298	. . . . . . 7 ⊢ (𝑚 = 𝑠 → (ℤ_≥‘(𝑚 + 1)) = (ℤ_≥‘(𝑠 + 1)))
62		fveq2 6774	. . . . . . . 8 ⊢ (𝑚 = 𝑠 → (𝐹‘𝑚) = (𝐹‘𝑠))
63	62	breq1d 5084	. . . . . . 7 ⊢ (𝑚 = 𝑠 → ((𝐹‘𝑚)𝑅(𝐹‘𝑛) ↔ (𝐹‘𝑠)𝑅(𝐹‘𝑛)))
64	61, 63	raleqbidv 3336	. . . . . 6 ⊢ (𝑚 = 𝑠 → (∀𝑛 ∈ (ℤ_≥‘(𝑚 + 1))(𝐹‘𝑚)𝑅(𝐹‘𝑛) ↔ ∀𝑛 ∈ (ℤ_≥‘(𝑠 + 1))(𝐹‘𝑠)𝑅(𝐹‘𝑛)))
65	64	rspcv 3557	. . . . 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 570	. . . 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 11985	. . . . . . 7 ⊢ (𝑠 ∈ ℕ → (𝑠 + 1) ∈ ℕ)
68	67	nnzd 12425	. . . . . 6 ⊢ (𝑠 ∈ ℕ → (𝑠 + 1) ∈ ℤ)
69		uzid 12597	. . . . . 6 ⊢ ((𝑠 + 1) ∈ ℤ → (𝑠 + 1) ∈ (ℤ_≥‘(𝑠 + 1)))
70	68, 69	syl 17	. . . . 5 ⊢ (𝑠 ∈ ℕ → (𝑠 + 1) ∈ (ℤ_≥‘(𝑠 + 1)))
71		fveq2 6774	. . . . . . 7 ⊢ (𝑛 = (𝑠 + 1) → (𝐹‘𝑛) = (𝐹‘(𝑠 + 1)))
72	71	breq2d 5086	. . . . . 6 ⊢ (𝑛 = (𝑠 + 1) → ((𝐹‘𝑠)𝑅(𝐹‘𝑛) ↔ (𝐹‘𝑠)𝑅(𝐹‘(𝑠 + 1))))
73	72	rspccva 3560	. . . . 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 593	. . . 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 3103	. 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 396 ∧ w3a 1086 = wceq 1539 ∈ wcel 2106 ∀wral 3064 class class class wbr 5074 Po wpo 5501 ⟶wf 6429 ‘cfv 6433 (class class class)co 7275 1c1 10872 + caddc 10874 ℕcn 11973 ℤcz 12319 ℤ_≥cuz 12582

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948

This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-om 7713 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-er 8498 df-en 8734 df-dom 8735 df-sdom 8736 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-nn 11974 df-n0 12234 df-z 12320 df-uz 12583

This theorem is referenced by: incsequz2 35907

W3C validator