Theorem stoweidlem7 40224

Description: This lemma is used to prove that q_n as in the proof of Lemma 1 in [BrosowskiDeutsh] p. 91, (at the top of page 91), is such that q_n < ε on 𝑇 ∖ 𝑈, and q_n > 1 - ε on 𝑉. Here it is proven that, for 𝑛 large enough, 1-(k*δ/2)^n > 1 - ε , and 1/(k*δ)^n < ε. The variable 𝐴 is used to represent (k*δ) in the paper, and 𝐵 is used to represent (k*δ/2). (Contributed by Glauco Siliprandi, 20-Apr-2017.)

Hypotheses

Ref	Expression
stoweidlem7.1	⊢ 𝐹 = (𝑖 ∈ ℕ0 ↦ ((1 / 𝐴)↑𝑖))
stoweidlem7.2	⊢ 𝐺 = (𝑖 ∈ ℕ0 ↦ (𝐵↑𝑖))
stoweidlem7.3	⊢ (𝜑 → 𝐴 ∈ ℝ)
stoweidlem7.4	⊢ (𝜑 → 1 < 𝐴)
stoweidlem7.5	⊢ (𝜑 → 𝐵 ∈ ℝ+)
stoweidlem7.6	⊢ (𝜑 → 𝐵 < 1)
stoweidlem7.7	⊢ (𝜑 → 𝐸 ∈ ℝ+)

Assertion

Ref	Expression
stoweidlem7	⊢ (𝜑 → ∃𝑛 ∈ ℕ ((1 − 𝐸) < (1 − (𝐵↑𝑛)) ∧ (1 / (𝐴↑𝑛)) < 𝐸))

Distinct variable groups:   𝑖,𝑛,𝐴   𝐵,𝑖,𝑛   𝑖,𝐸,𝑛   𝜑,𝑖,𝑛   𝑛,𝐹   𝑛,𝐺

Allowed substitution hints:   𝐹(𝑖)   𝐺(𝑖)

Proof of Theorem stoweidlem7

Dummy variable 𝑘 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		nnuz 11723	. . . . 5 ⊢ ℕ = (ℤ≥‘1)
2		1zzd 11408	. . . . 5 ⊢ (𝜑 → 1 ∈ ℤ)
3		stoweidlem7.7	. . . . 5 ⊢ (𝜑 → 𝐸 ∈ ℝ+)
4		stoweidlem7.2	. . . . . . 7 ⊢ 𝐺 = (𝑖 ∈ ℕ0 ↦ (𝐵↑𝑖))
5	4	a1i 11	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → 𝐺 = (𝑖 ∈ ℕ0 ↦ (𝐵↑𝑖)))
6		oveq2 6658	. . . . . . 7 ⊢ (𝑖 = 𝑘 → (𝐵↑𝑖) = (𝐵↑𝑘))
7	6	adantl 482	. . . . . 6 ⊢ (((𝜑 ∧ 𝑘 ∈ ℕ) ∧ 𝑖 = 𝑘) → (𝐵↑𝑖) = (𝐵↑𝑘))
8		nnnn0 11299	. . . . . . 7 ⊢ (𝑘 ∈ ℕ → 𝑘 ∈ ℕ0)
9	8	adantl 482	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → 𝑘 ∈ ℕ0)
10		stoweidlem7.5	. . . . . . . . 9 ⊢ (𝜑 → 𝐵 ∈ ℝ+)
11	10	rpcnd 11874	. . . . . . . 8 ⊢ (𝜑 → 𝐵 ∈ ℂ)
12	11	adantr 481	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → 𝐵 ∈ ℂ)
13	12, 9	expcld 13008	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → (𝐵↑𝑘) ∈ ℂ)
14	5, 7, 9, 13	fvmptd 6288	. . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → (𝐺‘𝑘) = (𝐵↑𝑘))
15		1red 10055	. . . . . . . . . 10 ⊢ (𝜑 → 1 ∈ ℝ)
16	15	renegcld 10457	. . . . . . . . 9 ⊢ (𝜑 → -1 ∈ ℝ)
17		0red 10041	. . . . . . . . 9 ⊢ (𝜑 → 0 ∈ ℝ)
18	10	rpred 11872	. . . . . . . . 9 ⊢ (𝜑 → 𝐵 ∈ ℝ)
19		neg1lt0 11127	. . . . . . . . . 10 ⊢ -1 < 0
20	19	a1i 11	. . . . . . . . 9 ⊢ (𝜑 → -1 < 0)
21	10	rpgt0d 11875	. . . . . . . . 9 ⊢ (𝜑 → 0 < 𝐵)
22	16, 17, 18, 20, 21	lttrd 10198	. . . . . . . 8 ⊢ (𝜑 → -1 < 𝐵)
23		stoweidlem7.6	. . . . . . . 8 ⊢ (𝜑 → 𝐵 < 1)
24	18, 15	absltd 14168	. . . . . . . 8 ⊢ (𝜑 → ((abs‘𝐵) < 1 ↔ (-1 < 𝐵 ∧ 𝐵 < 1)))
25	22, 23, 24	mpbir2and 957	. . . . . . 7 ⊢ (𝜑 → (abs‘𝐵) < 1)
26	11, 25	expcnv 14596	. . . . . 6 ⊢ (𝜑 → (𝑖 ∈ ℕ0 ↦ (𝐵↑𝑖)) ⇝ 0)
27	4, 26	syl5eqbr 4688	. . . . 5 ⊢ (𝜑 → 𝐺 ⇝ 0)
28	1, 2, 3, 14, 27	climi 14241	. . . 4 ⊢ (𝜑 → ∃𝑛 ∈ ℕ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸))
29		r19.26 3064	. . . . . . . . . . . . . 14 ⊢ (∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸) ↔ (∀𝑘 ∈ (ℤ≥‘𝑛)(𝐵↑𝑘) ∈ ℂ ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)(abs‘((𝐵↑𝑘) − 0)) < 𝐸))
30	29	simprbi 480	. . . . . . . . . . . . 13 ⊢ (∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸) → ∀𝑘 ∈ (ℤ≥‘𝑛)(abs‘((𝐵↑𝑘) − 0)) < 𝐸)
31	30	ad2antlr 763	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸)) ∧ 𝑖 ∈ (ℤ≥‘𝑛)) → ∀𝑘 ∈ (ℤ≥‘𝑛)(abs‘((𝐵↑𝑘) − 0)) < 𝐸)
32		oveq2 6658	. . . . . . . . . . . . . . . 16 ⊢ (𝑘 = 𝑖 → (𝐵↑𝑘) = (𝐵↑𝑖))
33	32	oveq1d 6665	. . . . . . . . . . . . . . 15 ⊢ (𝑘 = 𝑖 → ((𝐵↑𝑘) − 0) = ((𝐵↑𝑖) − 0))
34	33	fveq2d 6195	. . . . . . . . . . . . . 14 ⊢ (𝑘 = 𝑖 → (abs‘((𝐵↑𝑘) − 0)) = (abs‘((𝐵↑𝑖) − 0)))
35	34	breq1d 4663	. . . . . . . . . . . . 13 ⊢ (𝑘 = 𝑖 → ((abs‘((𝐵↑𝑘) − 0)) < 𝐸 ↔ (abs‘((𝐵↑𝑖) − 0)) < 𝐸))
36	35	rspccva 3308	. . . . . . . . . . . 12 ⊢ ((∀𝑘 ∈ (ℤ≥‘𝑛)(abs‘((𝐵↑𝑘) − 0)) < 𝐸 ∧ 𝑖 ∈ (ℤ≥‘𝑛)) → (abs‘((𝐵↑𝑖) − 0)) < 𝐸)
37	31, 36	sylancom 701	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸)) ∧ 𝑖 ∈ (ℤ≥‘𝑛)) → (abs‘((𝐵↑𝑖) − 0)) < 𝐸)
38		simplll 798	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸)) ∧ 𝑖 ∈ (ℤ≥‘𝑛)) → 𝜑)
39	38, 10	syl 17	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸)) ∧ 𝑖 ∈ (ℤ≥‘𝑛)) → 𝐵 ∈ ℝ+)
40	39	rpred 11872	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸)) ∧ 𝑖 ∈ (ℤ≥‘𝑛)) → 𝐵 ∈ ℝ)
41		simpllr 799	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸)) ∧ 𝑖 ∈ (ℤ≥‘𝑛)) → 𝑛 ∈ ℕ)
42		nnnn0 11299	. . . . . . . . . . . . . . 15 ⊢ (𝑛 ∈ ℕ → 𝑛 ∈ ℕ0)
43	41, 42	syl 17	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸)) ∧ 𝑖 ∈ (ℤ≥‘𝑛)) → 𝑛 ∈ ℕ0)
44		eluznn0 11757	. . . . . . . . . . . . . 14 ⊢ ((𝑛 ∈ ℕ0 ∧ 𝑖 ∈ (ℤ≥‘𝑛)) → 𝑖 ∈ ℕ0)
45	43, 44	sylancom 701	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸)) ∧ 𝑖 ∈ (ℤ≥‘𝑛)) → 𝑖 ∈ ℕ0)
46	40, 45	reexpcld 13025	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸)) ∧ 𝑖 ∈ (ℤ≥‘𝑛)) → (𝐵↑𝑖) ∈ ℝ)
47		rpre 11839	. . . . . . . . . . . . 13 ⊢ (𝐸 ∈ ℝ+ → 𝐸 ∈ ℝ)
48	38, 3, 47	3syl 18	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸)) ∧ 𝑖 ∈ (ℤ≥‘𝑛)) → 𝐸 ∈ ℝ)
49		recn 10026	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐵↑𝑖) ∈ ℝ → (𝐵↑𝑖) ∈ ℂ)
50	49	subid1d 10381	. . . . . . . . . . . . . . . 16 ⊢ ((𝐵↑𝑖) ∈ ℝ → ((𝐵↑𝑖) − 0) = (𝐵↑𝑖))
51	50	adantr 481	. . . . . . . . . . . . . . 15 ⊢ (((𝐵↑𝑖) ∈ ℝ ∧ 𝐸 ∈ ℝ) → ((𝐵↑𝑖) − 0) = (𝐵↑𝑖))
52	51	fveq2d 6195	. . . . . . . . . . . . . 14 ⊢ (((𝐵↑𝑖) ∈ ℝ ∧ 𝐸 ∈ ℝ) → (abs‘((𝐵↑𝑖) − 0)) = (abs‘(𝐵↑𝑖)))
53	52	breq1d 4663	. . . . . . . . . . . . 13 ⊢ (((𝐵↑𝑖) ∈ ℝ ∧ 𝐸 ∈ ℝ) → ((abs‘((𝐵↑𝑖) − 0)) < 𝐸 ↔ (abs‘(𝐵↑𝑖)) < 𝐸))
54		abslt 14054	. . . . . . . . . . . . 13 ⊢ (((𝐵↑𝑖) ∈ ℝ ∧ 𝐸 ∈ ℝ) → ((abs‘(𝐵↑𝑖)) < 𝐸 ↔ (-𝐸 < (𝐵↑𝑖) ∧ (𝐵↑𝑖) < 𝐸)))
55	53, 54	bitrd 268	. . . . . . . . . . . 12 ⊢ (((𝐵↑𝑖) ∈ ℝ ∧ 𝐸 ∈ ℝ) → ((abs‘((𝐵↑𝑖) − 0)) < 𝐸 ↔ (-𝐸 < (𝐵↑𝑖) ∧ (𝐵↑𝑖) < 𝐸)))
56	46, 48, 55	syl2anc 693	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸)) ∧ 𝑖 ∈ (ℤ≥‘𝑛)) → ((abs‘((𝐵↑𝑖) − 0)) < 𝐸 ↔ (-𝐸 < (𝐵↑𝑖) ∧ (𝐵↑𝑖) < 𝐸)))
57	37, 56	mpbid 222	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸)) ∧ 𝑖 ∈ (ℤ≥‘𝑛)) → (-𝐸 < (𝐵↑𝑖) ∧ (𝐵↑𝑖) < 𝐸))
58	57	simprd 479	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸)) ∧ 𝑖 ∈ (ℤ≥‘𝑛)) → (𝐵↑𝑖) < 𝐸)
59		eluznn 11758	. . . . . . . . . . 11 ⊢ ((𝑛 ∈ ℕ ∧ 𝑖 ∈ (ℤ≥‘𝑛)) → 𝑖 ∈ ℕ)
60	41, 59	sylancom 701	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸)) ∧ 𝑖 ∈ (ℤ≥‘𝑛)) → 𝑖 ∈ ℕ)
61	18	adantr 481	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ) → 𝐵 ∈ ℝ)
62		nnnn0 11299	. . . . . . . . . . . . 13 ⊢ (𝑖 ∈ ℕ → 𝑖 ∈ ℕ0)
63	62	adantl 482	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ) → 𝑖 ∈ ℕ0)
64	61, 63	reexpcld 13025	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ) → (𝐵↑𝑖) ∈ ℝ)
65	3	rpred 11872	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝐸 ∈ ℝ)
66	65	adantr 481	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ) → 𝐸 ∈ ℝ)
67		1red 10055	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ) → 1 ∈ ℝ)
68	64, 66, 67	ltsub2d 10637	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ) → ((𝐵↑𝑖) < 𝐸 ↔ (1 − 𝐸) < (1 − (𝐵↑𝑖))))
69	38, 60, 68	syl2anc 693	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸)) ∧ 𝑖 ∈ (ℤ≥‘𝑛)) → ((𝐵↑𝑖) < 𝐸 ↔ (1 − 𝐸) < (1 − (𝐵↑𝑖))))
70	58, 69	mpbid 222	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸)) ∧ 𝑖 ∈ (ℤ≥‘𝑛)) → (1 − 𝐸) < (1 − (𝐵↑𝑖)))
71	70	ralrimiva 2966	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸)) → ∀𝑖 ∈ (ℤ≥‘𝑛)(1 − 𝐸) < (1 − (𝐵↑𝑖)))
72	32	oveq2d 6666	. . . . . . . . 9 ⊢ (𝑘 = 𝑖 → (1 − (𝐵↑𝑘)) = (1 − (𝐵↑𝑖)))
73	72	breq2d 4665	. . . . . . . 8 ⊢ (𝑘 = 𝑖 → ((1 − 𝐸) < (1 − (𝐵↑𝑘)) ↔ (1 − 𝐸) < (1 − (𝐵↑𝑖))))
74	73	cbvralv 3171	. . . . . . 7 ⊢ (∀𝑘 ∈ (ℤ≥‘𝑛)(1 − 𝐸) < (1 − (𝐵↑𝑘)) ↔ ∀𝑖 ∈ (ℤ≥‘𝑛)(1 − 𝐸) < (1 − (𝐵↑𝑖)))
75	71, 74	sylibr 224	. . . . . 6 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸)) → ∀𝑘 ∈ (ℤ≥‘𝑛)(1 − 𝐸) < (1 − (𝐵↑𝑘)))
76	75	ex 450	. . . . 5 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸) → ∀𝑘 ∈ (ℤ≥‘𝑛)(1 − 𝐸) < (1 − (𝐵↑𝑘))))
77	76	reximdva 3017	. . . 4 ⊢ (𝜑 → (∃𝑛 ∈ ℕ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐵↑𝑘) ∈ ℂ ∧ (abs‘((𝐵↑𝑘) − 0)) < 𝐸) → ∃𝑛 ∈ ℕ ∀𝑘 ∈ (ℤ≥‘𝑛)(1 − 𝐸) < (1 − (𝐵↑𝑘))))
78	28, 77	mpd 15	. . 3 ⊢ (𝜑 → ∃𝑛 ∈ ℕ ∀𝑘 ∈ (ℤ≥‘𝑛)(1 − 𝐸) < (1 − (𝐵↑𝑘)))
79		stoweidlem7.1	. . . . . . 7 ⊢ 𝐹 = (𝑖 ∈ ℕ0 ↦ ((1 / 𝐴)↑𝑖))
80	79	a1i 11	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → 𝐹 = (𝑖 ∈ ℕ0 ↦ ((1 / 𝐴)↑𝑖)))
81		oveq2 6658	. . . . . . 7 ⊢ (𝑖 = 𝑘 → ((1 / 𝐴)↑𝑖) = ((1 / 𝐴)↑𝑘))
82	81	adantl 482	. . . . . 6 ⊢ (((𝜑 ∧ 𝑘 ∈ ℕ) ∧ 𝑖 = 𝑘) → ((1 / 𝐴)↑𝑖) = ((1 / 𝐴)↑𝑘))
83		stoweidlem7.3	. . . . . . . . . 10 ⊢ (𝜑 → 𝐴 ∈ ℝ)
84	83	recnd 10068	. . . . . . . . 9 ⊢ (𝜑 → 𝐴 ∈ ℂ)
85		0lt1 10550	. . . . . . . . . . . 12 ⊢ 0 < 1
86	85	a1i 11	. . . . . . . . . . 11 ⊢ (𝜑 → 0 < 1)
87		stoweidlem7.4	. . . . . . . . . . 11 ⊢ (𝜑 → 1 < 𝐴)
88	17, 15, 83, 86, 87	lttrd 10198	. . . . . . . . . 10 ⊢ (𝜑 → 0 < 𝐴)
89	88	gt0ne0d 10592	. . . . . . . . 9 ⊢ (𝜑 → 𝐴 ≠ 0)
90	84, 89	reccld 10794	. . . . . . . 8 ⊢ (𝜑 → (1 / 𝐴) ∈ ℂ)
91	90	adantr 481	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → (1 / 𝐴) ∈ ℂ)
92	91, 9	expcld 13008	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → ((1 / 𝐴)↑𝑘) ∈ ℂ)
93	80, 82, 9, 92	fvmptd 6288	. . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → (𝐹‘𝑘) = ((1 / 𝐴)↑𝑘))
94	83, 89	rereccld 10852	. . . . . . . . 9 ⊢ (𝜑 → (1 / 𝐴) ∈ ℝ)
95	83, 88	recgt0d 10958	. . . . . . . . 9 ⊢ (𝜑 → 0 < (1 / 𝐴))
96	16, 17, 94, 20, 95	lttrd 10198	. . . . . . . 8 ⊢ (𝜑 → -1 < (1 / 𝐴))
97		ltdiv23 10914	. . . . . . . . . . 11 ⊢ ((1 ∈ ℝ ∧ (𝐴 ∈ ℝ ∧ 0 < 𝐴) ∧ (1 ∈ ℝ ∧ 0 < 1)) → ((1 / 𝐴) < 1 ↔ (1 / 1) < 𝐴))
98	15, 83, 88, 15, 86, 97	syl122anc 1335	. . . . . . . . . 10 ⊢ (𝜑 → ((1 / 𝐴) < 1 ↔ (1 / 1) < 𝐴))
99		1cnd 10056	. . . . . . . . . . . 12 ⊢ (𝜑 → 1 ∈ ℂ)
100	99	div1d 10793	. . . . . . . . . . 11 ⊢ (𝜑 → (1 / 1) = 1)
101	100	breq1d 4663	. . . . . . . . . 10 ⊢ (𝜑 → ((1 / 1) < 𝐴 ↔ 1 < 𝐴))
102	98, 101	bitrd 268	. . . . . . . . 9 ⊢ (𝜑 → ((1 / 𝐴) < 1 ↔ 1 < 𝐴))
103	87, 102	mpbird 247	. . . . . . . 8 ⊢ (𝜑 → (1 / 𝐴) < 1)
104	94, 15	absltd 14168	. . . . . . . 8 ⊢ (𝜑 → ((abs‘(1 / 𝐴)) < 1 ↔ (-1 < (1 / 𝐴) ∧ (1 / 𝐴) < 1)))
105	96, 103, 104	mpbir2and 957	. . . . . . 7 ⊢ (𝜑 → (abs‘(1 / 𝐴)) < 1)
106	90, 105	expcnv 14596	. . . . . 6 ⊢ (𝜑 → (𝑖 ∈ ℕ0 ↦ ((1 / 𝐴)↑𝑖)) ⇝ 0)
107	79, 106	syl5eqbr 4688	. . . . 5 ⊢ (𝜑 → 𝐹 ⇝ 0)
108	1, 2, 3, 93, 107	climi2 14242	. . . 4 ⊢ (𝜑 → ∃𝑛 ∈ ℕ ∀𝑘 ∈ (ℤ≥‘𝑛)(abs‘(((1 / 𝐴)↑𝑘) − 0)) < 𝐸)
109		simpll 790	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ 𝑘 ∈ (ℤ≥‘𝑛)) → 𝜑)
110		uznnssnn 11735	. . . . . . . . 9 ⊢ (𝑛 ∈ ℕ → (ℤ≥‘𝑛) ⊆ ℕ)
111	110	ad2antlr 763	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ 𝑘 ∈ (ℤ≥‘𝑛)) → (ℤ≥‘𝑛) ⊆ ℕ)
112		simpr 477	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ 𝑘 ∈ (ℤ≥‘𝑛)) → 𝑘 ∈ (ℤ≥‘𝑛))
113	111, 112	sseldd 3604	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ 𝑘 ∈ (ℤ≥‘𝑛)) → 𝑘 ∈ ℕ)
114	92	subid1d 10381	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → (((1 / 𝐴)↑𝑘) − 0) = ((1 / 𝐴)↑𝑘))
115	114	fveq2d 6195	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → (abs‘(((1 / 𝐴)↑𝑘) − 0)) = (abs‘((1 / 𝐴)↑𝑘)))
116	94	adantr 481	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → (1 / 𝐴) ∈ ℝ)
117	116, 9	reexpcld 13025	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → ((1 / 𝐴)↑𝑘) ∈ ℝ)
118	17, 94, 95	ltled 10185	. . . . . . . . . . . . 13 ⊢ (𝜑 → 0 ≤ (1 / 𝐴))
119	118	adantr 481	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → 0 ≤ (1 / 𝐴))
120	116, 9, 119	expge0d 13026	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → 0 ≤ ((1 / 𝐴)↑𝑘))
121	117, 120	absidd 14161	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → (abs‘((1 / 𝐴)↑𝑘)) = ((1 / 𝐴)↑𝑘))
122	115, 121	eqtrd 2656	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → (abs‘(((1 / 𝐴)↑𝑘) − 0)) = ((1 / 𝐴)↑𝑘))
123	122	breq1d 4663	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → ((abs‘(((1 / 𝐴)↑𝑘) − 0)) < 𝐸 ↔ ((1 / 𝐴)↑𝑘) < 𝐸))
124	123	biimpd 219	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → ((abs‘(((1 / 𝐴)↑𝑘) − 0)) < 𝐸 → ((1 / 𝐴)↑𝑘) < 𝐸))
125	109, 113, 124	syl2anc 693	. . . . . 6 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ 𝑘 ∈ (ℤ≥‘𝑛)) → ((abs‘(((1 / 𝐴)↑𝑘) − 0)) < 𝐸 → ((1 / 𝐴)↑𝑘) < 𝐸))
126	125	ralimdva 2962	. . . . 5 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (∀𝑘 ∈ (ℤ≥‘𝑛)(abs‘(((1 / 𝐴)↑𝑘) − 0)) < 𝐸 → ∀𝑘 ∈ (ℤ≥‘𝑛)((1 / 𝐴)↑𝑘) < 𝐸))
127	126	reximdva 3017	. . . 4 ⊢ (𝜑 → (∃𝑛 ∈ ℕ ∀𝑘 ∈ (ℤ≥‘𝑛)(abs‘(((1 / 𝐴)↑𝑘) − 0)) < 𝐸 → ∃𝑛 ∈ ℕ ∀𝑘 ∈ (ℤ≥‘𝑛)((1 / 𝐴)↑𝑘) < 𝐸))
128	108, 127	mpd 15	. . 3 ⊢ (𝜑 → ∃𝑛 ∈ ℕ ∀𝑘 ∈ (ℤ≥‘𝑛)((1 / 𝐴)↑𝑘) < 𝐸)
129	1	rexanuz2 14089	. . 3 ⊢ (∃𝑛 ∈ ℕ ∀𝑘 ∈ (ℤ≥‘𝑛)((1 − 𝐸) < (1 − (𝐵↑𝑘)) ∧ ((1 / 𝐴)↑𝑘) < 𝐸) ↔ (∃𝑛 ∈ ℕ ∀𝑘 ∈ (ℤ≥‘𝑛)(1 − 𝐸) < (1 − (𝐵↑𝑘)) ∧ ∃𝑛 ∈ ℕ ∀𝑘 ∈ (ℤ≥‘𝑛)((1 / 𝐴)↑𝑘) < 𝐸))
130	78, 128, 129	sylanbrc 698	. 2 ⊢ (𝜑 → ∃𝑛 ∈ ℕ ∀𝑘 ∈ (ℤ≥‘𝑛)((1 − 𝐸) < (1 − (𝐵↑𝑘)) ∧ ((1 / 𝐴)↑𝑘) < 𝐸))
131		simpr 477	. . . . . 6 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((1 − 𝐸) < (1 − (𝐵↑𝑘)) ∧ ((1 / 𝐴)↑𝑘) < 𝐸)) → ∀𝑘 ∈ (ℤ≥‘𝑛)((1 − 𝐸) < (1 − (𝐵↑𝑘)) ∧ ((1 / 𝐴)↑𝑘) < 𝐸))
132		nnz 11399	. . . . . . . 8 ⊢ (𝑛 ∈ ℕ → 𝑛 ∈ ℤ)
133		uzid 11702	. . . . . . . 8 ⊢ (𝑛 ∈ ℤ → 𝑛 ∈ (ℤ≥‘𝑛))
134	132, 133	syl 17	. . . . . . 7 ⊢ (𝑛 ∈ ℕ → 𝑛 ∈ (ℤ≥‘𝑛))
135	134	ad2antlr 763	. . . . . 6 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((1 − 𝐸) < (1 − (𝐵↑𝑘)) ∧ ((1 / 𝐴)↑𝑘) < 𝐸)) → 𝑛 ∈ (ℤ≥‘𝑛))
136		oveq2 6658	. . . . . . . . . 10 ⊢ (𝑘 = 𝑛 → (𝐵↑𝑘) = (𝐵↑𝑛))
137	136	oveq2d 6666	. . . . . . . . 9 ⊢ (𝑘 = 𝑛 → (1 − (𝐵↑𝑘)) = (1 − (𝐵↑𝑛)))
138	137	breq2d 4665	. . . . . . . 8 ⊢ (𝑘 = 𝑛 → ((1 − 𝐸) < (1 − (𝐵↑𝑘)) ↔ (1 − 𝐸) < (1 − (𝐵↑𝑛))))
139		oveq2 6658	. . . . . . . . 9 ⊢ (𝑘 = 𝑛 → ((1 / 𝐴)↑𝑘) = ((1 / 𝐴)↑𝑛))
140	139	breq1d 4663	. . . . . . . 8 ⊢ (𝑘 = 𝑛 → (((1 / 𝐴)↑𝑘) < 𝐸 ↔ ((1 / 𝐴)↑𝑛) < 𝐸))
141	138, 140	anbi12d 747	. . . . . . 7 ⊢ (𝑘 = 𝑛 → (((1 − 𝐸) < (1 − (𝐵↑𝑘)) ∧ ((1 / 𝐴)↑𝑘) < 𝐸) ↔ ((1 − 𝐸) < (1 − (𝐵↑𝑛)) ∧ ((1 / 𝐴)↑𝑛) < 𝐸)))
142	141	rspccva 3308	. . . . . 6 ⊢ ((∀𝑘 ∈ (ℤ≥‘𝑛)((1 − 𝐸) < (1 − (𝐵↑𝑘)) ∧ ((1 / 𝐴)↑𝑘) < 𝐸) ∧ 𝑛 ∈ (ℤ≥‘𝑛)) → ((1 − 𝐸) < (1 − (𝐵↑𝑛)) ∧ ((1 / 𝐴)↑𝑛) < 𝐸))
143	131, 135, 142	syl2anc 693	. . . . 5 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((1 − 𝐸) < (1 − (𝐵↑𝑘)) ∧ ((1 / 𝐴)↑𝑘) < 𝐸)) → ((1 − 𝐸) < (1 − (𝐵↑𝑛)) ∧ ((1 / 𝐴)↑𝑛) < 𝐸))
144		1cnd 10056	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → 1 ∈ ℂ)
145	84, 89	jca 554	. . . . . . . . . . 11 ⊢ (𝜑 → (𝐴 ∈ ℂ ∧ 𝐴 ≠ 0))
146	145	adantr 481	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (𝐴 ∈ ℂ ∧ 𝐴 ≠ 0))
147	42	adantl 482	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → 𝑛 ∈ ℕ0)
148		expdiv 12911	. . . . . . . . . 10 ⊢ ((1 ∈ ℂ ∧ (𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝑛 ∈ ℕ0) → ((1 / 𝐴)↑𝑛) = ((1↑𝑛) / (𝐴↑𝑛)))
149	144, 146, 147, 148	syl3anc 1326	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → ((1 / 𝐴)↑𝑛) = ((1↑𝑛) / (𝐴↑𝑛)))
150	132	adantl 482	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → 𝑛 ∈ ℤ)
151		1exp 12889	. . . . . . . . . . 11 ⊢ (𝑛 ∈ ℤ → (1↑𝑛) = 1)
152	150, 151	syl 17	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (1↑𝑛) = 1)
153	152	oveq1d 6665	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → ((1↑𝑛) / (𝐴↑𝑛)) = (1 / (𝐴↑𝑛)))
154	149, 153	eqtrd 2656	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → ((1 / 𝐴)↑𝑛) = (1 / (𝐴↑𝑛)))
155	154	breq1d 4663	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (((1 / 𝐴)↑𝑛) < 𝐸 ↔ (1 / (𝐴↑𝑛)) < 𝐸))
156	155	adantr 481	. . . . . 6 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((1 − 𝐸) < (1 − (𝐵↑𝑘)) ∧ ((1 / 𝐴)↑𝑘) < 𝐸)) → (((1 / 𝐴)↑𝑛) < 𝐸 ↔ (1 / (𝐴↑𝑛)) < 𝐸))
157	156	anbi2d 740	. . . . 5 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((1 − 𝐸) < (1 − (𝐵↑𝑘)) ∧ ((1 / 𝐴)↑𝑘) < 𝐸)) → (((1 − 𝐸) < (1 − (𝐵↑𝑛)) ∧ ((1 / 𝐴)↑𝑛) < 𝐸) ↔ ((1 − 𝐸) < (1 − (𝐵↑𝑛)) ∧ (1 / (𝐴↑𝑛)) < 𝐸)))
158	143, 157	mpbid 222	. . . 4 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ∀𝑘 ∈ (ℤ≥‘𝑛)((1 − 𝐸) < (1 − (𝐵↑𝑘)) ∧ ((1 / 𝐴)↑𝑘) < 𝐸)) → ((1 − 𝐸) < (1 − (𝐵↑𝑛)) ∧ (1 / (𝐴↑𝑛)) < 𝐸))
159	158	ex 450	. . 3 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (∀𝑘 ∈ (ℤ≥‘𝑛)((1 − 𝐸) < (1 − (𝐵↑𝑘)) ∧ ((1 / 𝐴)↑𝑘) < 𝐸) → ((1 − 𝐸) < (1 − (𝐵↑𝑛)) ∧ (1 / (𝐴↑𝑛)) < 𝐸)))
160	159	reximdva 3017	. 2 ⊢ (𝜑 → (∃𝑛 ∈ ℕ ∀𝑘 ∈ (ℤ≥‘𝑛)((1 − 𝐸) < (1 − (𝐵↑𝑘)) ∧ ((1 / 𝐴)↑𝑘) < 𝐸) → ∃𝑛 ∈ ℕ ((1 − 𝐸) < (1 − (𝐵↑𝑛)) ∧ (1 / (𝐴↑𝑛)) < 𝐸)))
161	130, 160	mpd 15	1 ⊢ (𝜑 → ∃𝑛 ∈ ℕ ((1 − 𝐸) < (1 − (𝐵↑𝑛)) ∧ (1 / (𝐴↑𝑛)) < 𝐸))

Syntax hints:   → wi 4   ↔ wb 196   ∧ wa 384   = wceq 1483   ∈ wcel 1990   ≠ wne 2794  ∀wral 2912  ∃wrex 2913   ⊆ wss 3574   class class class wbr 4653   ↦ cmpt 4729  ‘cfv 5888  (class class class)co 6650  ℂcc 9934  ℝcr 9935  0cc0 9936  1c1 9937   < clt 10074   ≤ cle 10075   − cmin 10266  -cneg 10267   / cdiv 10684  ℕcn 11020  ℕ₀cn0 11292  ℤcz 11377  ℤ_≥cuz 11687  ℝ⁺crp 11832  ↑cexp 12860  abscabs 13974   ⇝ cli 14215

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-rep 4771  ax-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906  ax-un 6949  ax-cnex 9992  ax-resscn 9993  ax-1cn 9994  ax-icn 9995  ax-addcl 9996  ax-addrcl 9997  ax-mulcl 9998  ax-mulrcl 9999  ax-mulcom 10000  ax-addass 10001  ax-mulass 10002  ax-distr 10003  ax-i2m1 10004  ax-1ne0 10005  ax-1rid 10006  ax-rnegex 10007  ax-rrecex 10008  ax-cnre 10009  ax-pre-lttri 10010  ax-pre-lttrn 10011  ax-pre-ltadd 10012  ax-pre-mulgt0 10013  ax-pre-sup 10014

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1038  df-3an 1039  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-nel 2898  df-ral 2917  df-rex 2918  df-reu 2919  df-rmo 2920  df-rab 2921  df-v 3202  df-sbc 3436  df-csb 3534  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-pss 3590  df-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-tp 4182  df-op 4184  df-uni 4437  df-iun 4522  df-br 4654  df-opab 4713  df-mpt 4730  df-tr 4753  df-id 5024  df-eprel 5029  df-po 5035  df-so 5036  df-fr 5073  df-we 5075  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-rn 5125  df-res 5126  df-ima 5127  df-pred 5680  df-ord 5726  df-on 5727  df-lim 5728  df-suc 5729  df-iota 5851  df-fun 5890  df-fn 5891  df-f 5892  df-f1 5893  df-fo 5894  df-f1o 5895  df-fv 5896  df-riota 6611  df-ov 6653  df-oprab 6654  df-mpt2 6655  df-om 7066  df-2nd 7169  df-wrecs 7407  df-recs 7468  df-rdg 7506  df-er 7742  df-pm 7860  df-en 7956  df-dom 7957  df-sdom 7958  df-sup 8348  df-inf 8349  df-pnf 10076  df-mnf 10077  df-xr 10078  df-ltxr 10079  df-le 10080  df-sub 10268  df-neg 10269  df-div 10685  df-nn 11021  df-2 11079  df-3 11080  df-n0 11293  df-z 11378  df-uz 11688  df-rp 11833  df-fl 12593  df-seq 12802  df-exp 12861  df-cj 13839  df-re 13840  df-im 13841  df-sqrt 13975  df-abs 13976  df-clim 14219  df-rlim 14220

This theorem is referenced by:  stoweidlem49  40266