limsupre3uzlem - Mathbox for Glauco Siliprandi

	Mathbox for Glauco Siliprandi		< Previous Next > Nearby theorems
Mirrors > Home > MPE Home > Th. List > Mathboxes > limsupre3uzlem		Structured version Visualization version GIF version

Theorem limsupre3uzlem 45046

Description: Given a function on the extended reals, its supremum limit is real if and only if two condition holds: 1. there is a real number that is less than or equal to the function, infinitely often; 2. there is a real number that is eventually greater than or equal to the function. (Contributed by Glauco Siliprandi, 23-Oct-2021.)

**Hypotheses**
Ref	Expression
limsupre3uzlem.1	⊢ Ⅎ𝑗𝐹
limsupre3uzlem.2	⊢ (𝜑 → 𝑀 ∈ ℤ)
limsupre3uzlem.3	⊢ 𝑍 = (ℤ_≥‘𝑀)
limsupre3uzlem.4	⊢ (𝜑 → 𝐹:𝑍⟶ℝ^*)

**Assertion**
Ref	Expression
limsupre3uzlem	⊢ (𝜑 → ((lim sup‘𝐹) ∈ ℝ ↔ (∃𝑥 ∈ ℝ ∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗) ∧ ∃𝑥 ∈ ℝ ∃𝑘 ∈ 𝑍 ∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥)))

Distinct variable groups: 𝑘,𝐹,𝑥 𝑗,𝑀,𝑘 𝑗,𝑍,𝑘,𝑥 𝜑,𝑗,𝑘,𝑥 Allowed substitution hints: 𝐹(𝑗) 𝑀(𝑥)

Proof of Theorem limsupre3uzlem Dummy variable 𝑦 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		limsupre3uzlem.1	. . 3 ⊢ Ⅎ𝑗𝐹
2		limsupre3uzlem.3	. . . . 5 ⊢ 𝑍 = (ℤ_≥‘𝑀)
3		uzssre 12866	. . . . 5 ⊢ (ℤ_≥‘𝑀) ⊆ ℝ
4	2, 3	eqsstri 4012	. . . 4 ⊢ 𝑍 ⊆ ℝ
5	4	a1i 11	. . 3 ⊢ (𝜑 → 𝑍 ⊆ ℝ)
6		limsupre3uzlem.4	. . 3 ⊢ (𝜑 → 𝐹:𝑍⟶ℝ^*)
7	1, 5, 6	limsupre3 45044	. 2 ⊢ (𝜑 → ((lim sup‘𝐹) ∈ ℝ ↔ (∃𝑥 ∈ ℝ ∀𝑦 ∈ ℝ ∃𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)) ∧ ∃𝑥 ∈ ℝ ∃𝑦 ∈ ℝ ∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥))))
8		breq1 5145	. . . . . . . . . . 11 ⊢ (𝑦 = 𝑘 → (𝑦 ≤ 𝑗 ↔ 𝑘 ≤ 𝑗))
9	8	anbi1d 629	. . . . . . . . . 10 ⊢ (𝑦 = 𝑘 → ((𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)) ↔ (𝑘 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗))))
10	9	rexbidv 3173	. . . . . . . . 9 ⊢ (𝑦 = 𝑘 → (∃𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)) ↔ ∃𝑗 ∈ 𝑍 (𝑘 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗))))
11	10	cbvralvw 3229	. . . . . . . 8 ⊢ (∀𝑦 ∈ ℝ ∃𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)) ↔ ∀𝑘 ∈ ℝ ∃𝑗 ∈ 𝑍 (𝑘 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)))
12	11	biimpi 215	. . . . . . 7 ⊢ (∀𝑦 ∈ ℝ ∃𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)) → ∀𝑘 ∈ ℝ ∃𝑗 ∈ 𝑍 (𝑘 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)))
13		nfra1 3276	. . . . . . . 8 ⊢ Ⅎ𝑘∀𝑘 ∈ ℝ ∃𝑗 ∈ 𝑍 (𝑘 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗))
14		simpr 484	. . . . . . . . 9 ⊢ ((∀𝑘 ∈ ℝ ∃𝑗 ∈ 𝑍 (𝑘 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)) ∧ 𝑘 ∈ 𝑍) → 𝑘 ∈ 𝑍)
15	4, 14	sselid 3976	. . . . . . . . . 10 ⊢ ((∀𝑘 ∈ ℝ ∃𝑗 ∈ 𝑍 (𝑘 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)) ∧ 𝑘 ∈ 𝑍) → 𝑘 ∈ ℝ)
16		rspa 3240	. . . . . . . . . 10 ⊢ ((∀𝑘 ∈ ℝ ∃𝑗 ∈ 𝑍 (𝑘 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)) ∧ 𝑘 ∈ ℝ) → ∃𝑗 ∈ 𝑍 (𝑘 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)))
17	15, 16	syldan 590	. . . . . . . . 9 ⊢ ((∀𝑘 ∈ ℝ ∃𝑗 ∈ 𝑍 (𝑘 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)) ∧ 𝑘 ∈ 𝑍) → ∃𝑗 ∈ 𝑍 (𝑘 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)))
18		nfv 1910	. . . . . . . . . . 11 ⊢ Ⅎ𝑗 𝑘 ∈ 𝑍
19		nfre1 3277	. . . . . . . . . . 11 ⊢ Ⅎ𝑗∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗)
20		eqid 2727	. . . . . . . . . . . . . . 15 ⊢ (ℤ_≥‘𝑘) = (ℤ_≥‘𝑘)
21	2	eluzelz2 44708	. . . . . . . . . . . . . . . 16 ⊢ (𝑘 ∈ 𝑍 → 𝑘 ∈ ℤ)
22	21	3ad2ant1 1131	. . . . . . . . . . . . . . 15 ⊢ ((𝑘 ∈ 𝑍 ∧ 𝑗 ∈ 𝑍 ∧ 𝑘 ≤ 𝑗) → 𝑘 ∈ ℤ)
23	2	eluzelz2 44708	. . . . . . . . . . . . . . . 16 ⊢ (𝑗 ∈ 𝑍 → 𝑗 ∈ ℤ)
24	23	3ad2ant2 1132	. . . . . . . . . . . . . . 15 ⊢ ((𝑘 ∈ 𝑍 ∧ 𝑗 ∈ 𝑍 ∧ 𝑘 ≤ 𝑗) → 𝑗 ∈ ℤ)
25		simp3 1136	. . . . . . . . . . . . . . 15 ⊢ ((𝑘 ∈ 𝑍 ∧ 𝑗 ∈ 𝑍 ∧ 𝑘 ≤ 𝑗) → 𝑘 ≤ 𝑗)
26	20, 22, 24, 25	eluzd 44714	. . . . . . . . . . . . . 14 ⊢ ((𝑘 ∈ 𝑍 ∧ 𝑗 ∈ 𝑍 ∧ 𝑘 ≤ 𝑗) → 𝑗 ∈ (ℤ_≥‘𝑘))
27	26	3adant3r 1179	. . . . . . . . . . . . 13 ⊢ ((𝑘 ∈ 𝑍 ∧ 𝑗 ∈ 𝑍 ∧ (𝑘 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗))) → 𝑗 ∈ (ℤ_≥‘𝑘))
28		simp3r 1200	. . . . . . . . . . . . 13 ⊢ ((𝑘 ∈ 𝑍 ∧ 𝑗 ∈ 𝑍 ∧ (𝑘 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗))) → 𝑥 ≤ (𝐹‘𝑗))
29		rspe 3241	. . . . . . . . . . . . 13 ⊢ ((𝑗 ∈ (ℤ_≥‘𝑘) ∧ 𝑥 ≤ (𝐹‘𝑗)) → ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗))
30	27, 28, 29	syl2anc 583	. . . . . . . . . . . 12 ⊢ ((𝑘 ∈ 𝑍 ∧ 𝑗 ∈ 𝑍 ∧ (𝑘 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗))) → ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗))
31	30	3exp 1117	. . . . . . . . . . 11 ⊢ (𝑘 ∈ 𝑍 → (𝑗 ∈ 𝑍 → ((𝑘 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)) → ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗))))
32	18, 19, 31	rexlimd 3258	. . . . . . . . . 10 ⊢ (𝑘 ∈ 𝑍 → (∃𝑗 ∈ 𝑍 (𝑘 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)) → ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗)))
33	32	imp 406	. . . . . . . . 9 ⊢ ((𝑘 ∈ 𝑍 ∧ ∃𝑗 ∈ 𝑍 (𝑘 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗))) → ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗))
34	14, 17, 33	syl2anc 583	. . . . . . . 8 ⊢ ((∀𝑘 ∈ ℝ ∃𝑗 ∈ 𝑍 (𝑘 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)) ∧ 𝑘 ∈ 𝑍) → ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗))
35	13, 34	ralrimia 3250	. . . . . . 7 ⊢ (∀𝑘 ∈ ℝ ∃𝑗 ∈ 𝑍 (𝑘 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)) → ∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗))
36	12, 35	syl 17	. . . . . 6 ⊢ (∀𝑦 ∈ ℝ ∃𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)) → ∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗))
37	36	a1i 11	. . . . 5 ⊢ (𝜑 → (∀𝑦 ∈ ℝ ∃𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)) → ∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗)))
38		iftrue 4530	. . . . . . . . . . . . 13 ⊢ (𝑀 ≤ (⌈‘𝑦) → if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀) = (⌈‘𝑦))
39	38	adantl 481	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑀 ≤ (⌈‘𝑦)) → if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀) = (⌈‘𝑦))
40		limsupre3uzlem.2	. . . . . . . . . . . . . 14 ⊢ (𝜑 → 𝑀 ∈ ℤ)
41	40	ad2antrr 725	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑀 ≤ (⌈‘𝑦)) → 𝑀 ∈ ℤ)
42		ceilcl 13831	. . . . . . . . . . . . . 14 ⊢ (𝑦 ∈ ℝ → (⌈‘𝑦) ∈ ℤ)
43	42	ad2antlr 726	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑀 ≤ (⌈‘𝑦)) → (⌈‘𝑦) ∈ ℤ)
44		simpr 484	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑀 ≤ (⌈‘𝑦)) → 𝑀 ≤ (⌈‘𝑦))
45	2, 41, 43, 44	eluzd 44714	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑀 ≤ (⌈‘𝑦)) → (⌈‘𝑦) ∈ 𝑍)
46	39, 45	eqeltrd 2828	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑀 ≤ (⌈‘𝑦)) → if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀) ∈ 𝑍)
47		iffalse 4533	. . . . . . . . . . . . . 14 ⊢ (¬ 𝑀 ≤ (⌈‘𝑦) → if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀) = 𝑀)
48	47	adantl 481	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ ¬ 𝑀 ≤ (⌈‘𝑦)) → if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀) = 𝑀)
49	40, 2	uzidd2 44721	. . . . . . . . . . . . . 14 ⊢ (𝜑 → 𝑀 ∈ 𝑍)
50	49	adantr 480	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ ¬ 𝑀 ≤ (⌈‘𝑦)) → 𝑀 ∈ 𝑍)
51	48, 50	eqeltrd 2828	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ ¬ 𝑀 ≤ (⌈‘𝑦)) → if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀) ∈ 𝑍)
52	51	adantlr 714	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ ¬ 𝑀 ≤ (⌈‘𝑦)) → if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀) ∈ 𝑍)
53	46, 52	pm2.61dan 812	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ) → if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀) ∈ 𝑍)
54	53	adantlr 714	. . . . . . . . 9 ⊢ (((𝜑 ∧ ∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗)) ∧ 𝑦 ∈ ℝ) → if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀) ∈ 𝑍)
55		simplr 768	. . . . . . . . 9 ⊢ (((𝜑 ∧ ∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗)) ∧ 𝑦 ∈ ℝ) → ∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗))
56		fveq2 6891	. . . . . . . . . . 11 ⊢ (𝑘 = if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀) → (ℤ_≥‘𝑘) = (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀)))
57	56	rexeqdv 3321	. . . . . . . . . 10 ⊢ (𝑘 = if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀) → (∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗) ↔ ∃𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))𝑥 ≤ (𝐹‘𝑗)))
58	57	rspcva 3605	. . . . . . . . 9 ⊢ ((if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀) ∈ 𝑍 ∧ ∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗)) → ∃𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))𝑥 ≤ (𝐹‘𝑗))
59	54, 55, 58	syl2anc 583	. . . . . . . 8 ⊢ (((𝜑 ∧ ∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗)) ∧ 𝑦 ∈ ℝ) → ∃𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))𝑥 ≤ (𝐹‘𝑗))
60		nfv 1910	. . . . . . . . . . 11 ⊢ Ⅎ𝑗𝜑
61	18	nfci 2881	. . . . . . . . . . . 12 ⊢ Ⅎ𝑗𝑍
62	61, 19	nfralw 3303	. . . . . . . . . . 11 ⊢ Ⅎ𝑗∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗)
63	60, 62	nfan 1895	. . . . . . . . . 10 ⊢ Ⅎ𝑗(𝜑 ∧ ∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗))
64		nfv 1910	. . . . . . . . . 10 ⊢ Ⅎ𝑗 𝑦 ∈ ℝ
65	63, 64	nfan 1895	. . . . . . . . 9 ⊢ Ⅎ𝑗((𝜑 ∧ ∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗)) ∧ 𝑦 ∈ ℝ)
66		nfre1 3277	. . . . . . . . 9 ⊢ Ⅎ𝑗∃𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗))
67	40	ad2antrr 725	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))) → 𝑀 ∈ ℤ)
68		eluzelz 12854	. . . . . . . . . . . . . . 15 ⊢ (𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀)) → 𝑗 ∈ ℤ)
69	68	adantl 481	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))) → 𝑗 ∈ ℤ)
70	67	zred 12688	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))) → 𝑀 ∈ ℝ)
71	4, 53	sselid 3976	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ) → if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀) ∈ ℝ)
72	71	adantr 480	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))) → if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀) ∈ ℝ)
73	69	zred 12688	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))) → 𝑗 ∈ ℝ)
74	4, 49	sselid 3976	. . . . . . . . . . . . . . . . . 18 ⊢ (𝜑 → 𝑀 ∈ ℝ)
75	74	adantr 480	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ) → 𝑀 ∈ ℝ)
76	42	zred 12688	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑦 ∈ ℝ → (⌈‘𝑦) ∈ ℝ)
77	76	adantl 481	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ) → (⌈‘𝑦) ∈ ℝ)
78		max1 13188	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑀 ∈ ℝ ∧ (⌈‘𝑦) ∈ ℝ) → 𝑀 ≤ if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))
79	75, 77, 78	syl2anc 583	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ) → 𝑀 ≤ if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))
80	79	adantr 480	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))) → 𝑀 ≤ if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))
81		eluzle 12857	. . . . . . . . . . . . . . . 16 ⊢ (𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀)) → if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀) ≤ 𝑗)
82	81	adantl 481	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))) → if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀) ≤ 𝑗)
83	70, 72, 73, 80, 82	letrd 11393	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))) → 𝑀 ≤ 𝑗)
84	2, 67, 69, 83	eluzd 44714	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))) → 𝑗 ∈ 𝑍)
85	84	3adant3 1130	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀)) ∧ 𝑥 ≤ (𝐹‘𝑗)) → 𝑗 ∈ 𝑍)
86		simplr 768	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))) → 𝑦 ∈ ℝ)
87		simpr 484	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ) → 𝑦 ∈ ℝ)
88		ceilge 13834	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑦 ∈ ℝ → 𝑦 ≤ (⌈‘𝑦))
89	88	adantl 481	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ) → 𝑦 ≤ (⌈‘𝑦))
90		max2 13190	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑀 ∈ ℝ ∧ (⌈‘𝑦) ∈ ℝ) → (⌈‘𝑦) ≤ if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))
91	75, 77, 90	syl2anc 583	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ) → (⌈‘𝑦) ≤ if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))
92	87, 77, 71, 89, 91	letrd 11393	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ) → 𝑦 ≤ if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))
93	92	adantr 480	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))) → 𝑦 ≤ if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))
94	86, 72, 73, 93, 82	letrd 11393	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))) → 𝑦 ≤ 𝑗)
95	94	3adant3 1130	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀)) ∧ 𝑥 ≤ (𝐹‘𝑗)) → 𝑦 ≤ 𝑗)
96		simp3 1136	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀)) ∧ 𝑥 ≤ (𝐹‘𝑗)) → 𝑥 ≤ (𝐹‘𝑗))
97	95, 96	jca 511	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀)) ∧ 𝑥 ≤ (𝐹‘𝑗)) → (𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)))
98		rspe 3241	. . . . . . . . . . . 12 ⊢ ((𝑗 ∈ 𝑍 ∧ (𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗))) → ∃𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)))
99	85, 97, 98	syl2anc 583	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀)) ∧ 𝑥 ≤ (𝐹‘𝑗)) → ∃𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)))
100	99	3exp 1117	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ) → (𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀)) → (𝑥 ≤ (𝐹‘𝑗) → ∃𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)))))
101	100	adantlr 714	. . . . . . . . 9 ⊢ (((𝜑 ∧ ∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗)) ∧ 𝑦 ∈ ℝ) → (𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀)) → (𝑥 ≤ (𝐹‘𝑗) → ∃𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)))))
102	65, 66, 101	rexlimd 3258	. . . . . . . 8 ⊢ (((𝜑 ∧ ∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗)) ∧ 𝑦 ∈ ℝ) → (∃𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))𝑥 ≤ (𝐹‘𝑗) → ∃𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗))))
103	59, 102	mpd 15	. . . . . . 7 ⊢ (((𝜑 ∧ ∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗)) ∧ 𝑦 ∈ ℝ) → ∃𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)))
104	103	ralrimiva 3141	. . . . . 6 ⊢ ((𝜑 ∧ ∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗)) → ∀𝑦 ∈ ℝ ∃𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)))
105	104	ex 412	. . . . 5 ⊢ (𝜑 → (∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗) → ∀𝑦 ∈ ℝ ∃𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗))))
106	37, 105	impbid 211	. . . 4 ⊢ (𝜑 → (∀𝑦 ∈ ℝ ∃𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)) ↔ ∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗)))
107	106	rexbidv 3173	. . 3 ⊢ (𝜑 → (∃𝑥 ∈ ℝ ∀𝑦 ∈ ℝ ∃𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)) ↔ ∃𝑥 ∈ ℝ ∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗)))
108	53	adantr 480	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ ∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥)) → if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀) ∈ 𝑍)
109	60, 64	nfan 1895	. . . . . . . . 9 ⊢ Ⅎ𝑗(𝜑 ∧ 𝑦 ∈ ℝ)
110		nfra1 3276	. . . . . . . . 9 ⊢ Ⅎ𝑗∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥)
111	109, 110	nfan 1895	. . . . . . . 8 ⊢ Ⅎ𝑗((𝜑 ∧ 𝑦 ∈ ℝ) ∧ ∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥))
112	94	adantlr 714	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑦 ∈ ℝ) ∧ ∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥)) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))) → 𝑦 ≤ 𝑗)
113		simplr 768	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑦 ∈ ℝ) ∧ ∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥)) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))) → ∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥))
114	84	adantlr 714	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑦 ∈ ℝ) ∧ ∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥)) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))) → 𝑗 ∈ 𝑍)
115		rspa 3240	. . . . . . . . . . 11 ⊢ ((∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥) ∧ 𝑗 ∈ 𝑍) → (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥))
116	113, 114, 115	syl2anc 583	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑦 ∈ ℝ) ∧ ∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥)) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))) → (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥))
117	112, 116	mpd 15	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑦 ∈ ℝ) ∧ ∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥)) ∧ 𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))) → (𝐹‘𝑗) ≤ 𝑥)
118	117	ex 412	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ ∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥)) → (𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀)) → (𝐹‘𝑗) ≤ 𝑥))
119	111, 118	ralrimi 3249	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ ∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥)) → ∀𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))(𝐹‘𝑗) ≤ 𝑥)
120	56	raleqdv 3320	. . . . . . . 8 ⊢ (𝑘 = if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀) → (∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥 ↔ ∀𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))(𝐹‘𝑗) ≤ 𝑥))
121	120	rspcev 3607	. . . . . . 7 ⊢ ((if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀) ∈ 𝑍 ∧ ∀𝑗 ∈ (ℤ_≥‘if(𝑀 ≤ (⌈‘𝑦), (⌈‘𝑦), 𝑀))(𝐹‘𝑗) ≤ 𝑥) → ∃𝑘 ∈ 𝑍 ∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥)
122	108, 119, 121	syl2anc 583	. . . . . 6 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ) ∧ ∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥)) → ∃𝑘 ∈ 𝑍 ∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥)
123	122	rexlimdva2 3152	. . . . 5 ⊢ (𝜑 → (∃𝑦 ∈ ℝ ∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥) → ∃𝑘 ∈ 𝑍 ∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥))
124	4	sseli 3974	. . . . . . . 8 ⊢ (𝑘 ∈ 𝑍 → 𝑘 ∈ ℝ)
125	124	ad2antlr 726	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ ∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥) → 𝑘 ∈ ℝ)
126		nfra1 3276	. . . . . . . . . 10 ⊢ Ⅎ𝑗∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥
127	18, 126	nfan 1895	. . . . . . . . 9 ⊢ Ⅎ𝑗(𝑘 ∈ 𝑍 ∧ ∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥)
128		simp1r 1196	. . . . . . . . . . 11 ⊢ (((𝑘 ∈ 𝑍 ∧ ∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥) ∧ 𝑗 ∈ 𝑍 ∧ 𝑘 ≤ 𝑗) → ∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥)
129	26	3adant1r 1175	. . . . . . . . . . 11 ⊢ (((𝑘 ∈ 𝑍 ∧ ∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥) ∧ 𝑗 ∈ 𝑍 ∧ 𝑘 ≤ 𝑗) → 𝑗 ∈ (ℤ_≥‘𝑘))
130		rspa 3240	. . . . . . . . . . 11 ⊢ ((∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥 ∧ 𝑗 ∈ (ℤ_≥‘𝑘)) → (𝐹‘𝑗) ≤ 𝑥)
131	128, 129, 130	syl2anc 583	. . . . . . . . . 10 ⊢ (((𝑘 ∈ 𝑍 ∧ ∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥) ∧ 𝑗 ∈ 𝑍 ∧ 𝑘 ≤ 𝑗) → (𝐹‘𝑗) ≤ 𝑥)
132	131	3exp 1117	. . . . . . . . 9 ⊢ ((𝑘 ∈ 𝑍 ∧ ∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥) → (𝑗 ∈ 𝑍 → (𝑘 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥)))
133	127, 132	ralrimi 3249	. . . . . . . 8 ⊢ ((𝑘 ∈ 𝑍 ∧ ∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥) → ∀𝑗 ∈ 𝑍 (𝑘 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥))
134	133	adantll 713	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ ∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥) → ∀𝑗 ∈ 𝑍 (𝑘 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥))
135	8	rspceaimv 3613	. . . . . . 7 ⊢ ((𝑘 ∈ ℝ ∧ ∀𝑗 ∈ 𝑍 (𝑘 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥)) → ∃𝑦 ∈ ℝ ∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥))
136	125, 134, 135	syl2anc 583	. . . . . 6 ⊢ (((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ ∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥) → ∃𝑦 ∈ ℝ ∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥))
137	136	rexlimdva2 3152	. . . . 5 ⊢ (𝜑 → (∃𝑘 ∈ 𝑍 ∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥 → ∃𝑦 ∈ ℝ ∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥)))
138	123, 137	impbid 211	. . . 4 ⊢ (𝜑 → (∃𝑦 ∈ ℝ ∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥) ↔ ∃𝑘 ∈ 𝑍 ∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥))
139	138	rexbidv 3173	. . 3 ⊢ (𝜑 → (∃𝑥 ∈ ℝ ∃𝑦 ∈ ℝ ∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥) ↔ ∃𝑥 ∈ ℝ ∃𝑘 ∈ 𝑍 ∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥))
140	107, 139	anbi12d 630	. 2 ⊢ (𝜑 → ((∃𝑥 ∈ ℝ ∀𝑦 ∈ ℝ ∃𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 ∧ 𝑥 ≤ (𝐹‘𝑗)) ∧ ∃𝑥 ∈ ℝ ∃𝑦 ∈ ℝ ∀𝑗 ∈ 𝑍 (𝑦 ≤ 𝑗 → (𝐹‘𝑗) ≤ 𝑥)) ↔ (∃𝑥 ∈ ℝ ∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗) ∧ ∃𝑥 ∈ ℝ ∃𝑘 ∈ 𝑍 ∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥)))
141	7, 140	bitrd 279	1 ⊢ (𝜑 → ((lim sup‘𝐹) ∈ ℝ ↔ (∃𝑥 ∈ ℝ ∀𝑘 ∈ 𝑍 ∃𝑗 ∈ (ℤ_≥‘𝑘)𝑥 ≤ (𝐹‘𝑗) ∧ ∃𝑥 ∈ ℝ ∃𝑘 ∈ 𝑍 ∀𝑗 ∈ (ℤ_≥‘𝑘)(𝐹‘𝑗) ≤ 𝑥)))

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 395 ∧ w3a 1085 = wceq 1534 ∈ wcel 2099 Ⅎwnfc 2878 ∀wral 3056 ∃wrex 3065 ⊆ wss 3944 ifcif 4524 class class class wbr 5142 ⟶wf 6538 ‘cfv 6542 ℝcr 11129 ℝ^*cxr 11269 ≤ cle 11271 ℤcz 12580 ℤ_≥cuz 12844 ⌈cceil 13780 lim supclsp 15438

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-10 2130 ax-11 2147 ax-12 2164 ax-ext 2698 ax-rep 5279 ax-sep 5293 ax-nul 5300 ax-pow 5359 ax-pr 5423 ax-un 7734 ax-cnex 11186 ax-resscn 11187 ax-1cn 11188 ax-icn 11189 ax-addcl 11190 ax-addrcl 11191 ax-mulcl 11192 ax-mulrcl 11193 ax-mulcom 11194 ax-addass 11195 ax-mulass 11196 ax-distr 11197 ax-i2m1 11198 ax-1ne0 11199 ax-1rid 11200 ax-rnegex 11201 ax-rrecex 11202 ax-cnre 11203 ax-pre-lttri 11204 ax-pre-lttrn 11205 ax-pre-ltadd 11206 ax-pre-mulgt0 11207 ax-pre-sup 11208

This theorem depends on definitions: df-bi 206 df-an 396 df-or 847 df-3or 1086 df-3an 1087 df-tru 1537 df-fal 1547 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2529 df-eu 2558 df-clab 2705 df-cleq 2719 df-clel 2805 df-nfc 2880 df-ne 2936 df-nel 3042 df-ral 3057 df-rex 3066 df-rmo 3371 df-reu 3372 df-rab 3428 df-v 3471 df-sbc 3775 df-csb 3890 df-dif 3947 df-un 3949 df-in 3951 df-ss 3961 df-pss 3963 df-nul 4319 df-if 4525 df-pw 4600 df-sn 4625 df-pr 4627 df-op 4631 df-uni 4904 df-iun 4993 df-br 5143 df-opab 5205 df-mpt 5226 df-tr 5260 df-id 5570 df-eprel 5576 df-po 5584 df-so 5585 df-fr 5627 df-we 5629 df-xp 5678 df-rel 5679 df-cnv 5680 df-co 5681 df-dm 5682 df-rn 5683 df-res 5684 df-ima 5685 df-pred 6299 df-ord 6366 df-on 6367 df-lim 6368 df-suc 6369 df-iota 6494 df-fun 6544 df-fn 6545 df-f 6546 df-f1 6547 df-fo 6548 df-f1o 6549 df-fv 6550 df-riota 7370 df-ov 7417 df-oprab 7418 df-mpo 7419 df-om 7865 df-2nd 7988 df-frecs 8280 df-wrecs 8311 df-recs 8385 df-rdg 8424 df-er 8718 df-en 8956 df-dom 8957 df-sdom 8958 df-sup 9457 df-inf 9458 df-pnf 11272 df-mnf 11273 df-xr 11274 df-ltxr 11275 df-le 11276 df-sub 11468 df-neg 11469 df-nn 12235 df-n0 12495 df-z 12581 df-uz 12845 df-ico 13354 df-fl 13781 df-ceil 13782 df-limsup 15439

This theorem is referenced by: limsupre3uz 45047 limsupreuz 45048

W3C validator