Theorem stoweidlem46 42330

Description: This lemma proves that sets U(t) as defined in Lemma 1 of [BrosowskiDeutsh] p. 90, are a cover of T \ U. Using this lemma, in a later theorem we will prove that a finite subcover exists. (Contributed by Glauco Siliprandi, 20-Apr-2017.)

Hypotheses

Ref	Expression
stoweidlem46.1	⊢ Ⅎ𝑡𝑈
stoweidlem46.2	⊢ Ⅎℎ𝑄
stoweidlem46.3	⊢ Ⅎ𝑞𝜑
stoweidlem46.4	⊢ Ⅎ𝑡𝜑
stoweidlem46.5	⊢ 𝐾 = (topGen‘ran (,))
stoweidlem46.6	⊢ 𝑄 = {ℎ ∈ 𝐴 ∣ ((ℎ‘𝑍) = 0 ∧ ∀𝑡 ∈ 𝑇 (0 ≤ (ℎ‘𝑡) ∧ (ℎ‘𝑡) ≤ 1))}
stoweidlem46.7	⊢ 𝑊 = {𝑤 ∈ 𝐽 ∣ ∃ℎ ∈ 𝑄 𝑤 = {𝑡 ∈ 𝑇 ∣ 0 < (ℎ‘𝑡)}}
stoweidlem46.8	⊢ 𝑇 = ∪ 𝐽
stoweidlem46.9	⊢ (𝜑 → 𝐽 ∈ Comp)
stoweidlem46.10	⊢ (𝜑 → 𝐴 ⊆ (𝐽 Cn 𝐾))
stoweidlem46.11	⊢ ((𝜑 ∧ 𝑓 ∈ 𝐴 ∧ 𝑔 ∈ 𝐴) → (𝑡 ∈ 𝑇 ↦ ((𝑓‘𝑡) + (𝑔‘𝑡))) ∈ 𝐴)
stoweidlem46.12	⊢ ((𝜑 ∧ 𝑓 ∈ 𝐴 ∧ 𝑔 ∈ 𝐴) → (𝑡 ∈ 𝑇 ↦ ((𝑓‘𝑡) · (𝑔‘𝑡))) ∈ 𝐴)
stoweidlem46.13	⊢ ((𝜑 ∧ 𝑥 ∈ ℝ) → (𝑡 ∈ 𝑇 ↦ 𝑥) ∈ 𝐴)
stoweidlem46.14	⊢ ((𝜑 ∧ (𝑟 ∈ 𝑇 ∧ 𝑡 ∈ 𝑇 ∧ 𝑟 ≠ 𝑡)) → ∃𝑞 ∈ 𝐴 (𝑞‘𝑟) ≠ (𝑞‘𝑡))
stoweidlem46.15	⊢ (𝜑 → 𝑈 ∈ 𝐽)
stoweidlem46.16	⊢ (𝜑 → 𝑍 ∈ 𝑈)
stoweidlem46.17	⊢ (𝜑 → 𝑇 ∈ V)

Assertion

Ref	Expression
stoweidlem46	⊢ (𝜑 → (𝑇 ∖ 𝑈) ⊆ ∪ 𝑊)

Distinct variable groups:   𝑓,𝑔,ℎ,𝑡,𝑇   𝑓,𝑞,𝑔,𝑡,𝑇   𝑓,𝑟,𝑞,𝑡,𝑇   𝑥,𝑓,𝑞,𝑡,𝑇   𝐴,𝑓,𝑔,ℎ,𝑡   𝑄,𝑓,𝑔   𝑈,𝑓,𝑔,𝑞   𝑓,𝑍,𝑔,ℎ,𝑡   𝜑,𝑓,𝑔   𝑤,𝑔,ℎ,𝑡,𝑇   𝑔,𝑊   𝐴,𝑞,𝑟   𝑍,𝑞,𝑥   𝑈,𝑟   𝜑,𝑟   𝑡,𝐽,𝑤   𝑡,𝐾   𝑤,𝑄   𝑥,𝐴   𝑥,𝑈   𝜑,𝑥

Allowed substitution hints:   𝜑(𝑤,𝑡,ℎ,𝑞)   𝐴(𝑤)   𝑄(𝑥,𝑡,ℎ,𝑟,𝑞)   𝑈(𝑤,𝑡,ℎ)   𝐽(𝑥,𝑓,𝑔,ℎ,𝑟,𝑞)   𝐾(𝑥,𝑤,𝑓,𝑔,ℎ,𝑟,𝑞)   𝑊(𝑥,𝑤,𝑡,𝑓,ℎ,𝑟,𝑞)   𝑍(𝑤,𝑟)

Proof of Theorem stoweidlem46

Dummy variable 𝑠 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		stoweidlem46.3	. . . . . . . 8 ⊢ Ⅎ𝑞𝜑
2		nfv 1911	. . . . . . . 8 ⊢ Ⅎ𝑞 𝑠 ∈ (𝑇 ∖ 𝑈)
3	1, 2	nfan 1896	. . . . . . 7 ⊢ Ⅎ𝑞(𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈))
4		stoweidlem46.4	. . . . . . . 8 ⊢ Ⅎ𝑡𝜑
5		nfcv 2977	. . . . . . . . . 10 ⊢ Ⅎ𝑡𝑇
6		stoweidlem46.1	. . . . . . . . . 10 ⊢ Ⅎ𝑡𝑈
7	5, 6	nfdif 4101	. . . . . . . . 9 ⊢ Ⅎ𝑡(𝑇 ∖ 𝑈)
8	7	nfel2 2996	. . . . . . . 8 ⊢ Ⅎ𝑡 𝑠 ∈ (𝑇 ∖ 𝑈)
9	4, 8	nfan 1896	. . . . . . 7 ⊢ Ⅎ𝑡(𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈))
10		stoweidlem46.2	. . . . . . 7 ⊢ Ⅎℎ𝑄
11		stoweidlem46.5	. . . . . . 7 ⊢ 𝐾 = (topGen‘ran (,))
12		stoweidlem46.6	. . . . . . 7 ⊢ 𝑄 = {ℎ ∈ 𝐴 ∣ ((ℎ‘𝑍) = 0 ∧ ∀𝑡 ∈ 𝑇 (0 ≤ (ℎ‘𝑡) ∧ (ℎ‘𝑡) ≤ 1))}
13		stoweidlem46.8	. . . . . . 7 ⊢ 𝑇 = ∪ 𝐽
14		stoweidlem46.9	. . . . . . . 8 ⊢ (𝜑 → 𝐽 ∈ Comp)
15	14	adantr 483	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) → 𝐽 ∈ Comp)
16		stoweidlem46.10	. . . . . . . 8 ⊢ (𝜑 → 𝐴 ⊆ (𝐽 Cn 𝐾))
17	16	adantr 483	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) → 𝐴 ⊆ (𝐽 Cn 𝐾))
18		stoweidlem46.11	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑓 ∈ 𝐴 ∧ 𝑔 ∈ 𝐴) → (𝑡 ∈ 𝑇 ↦ ((𝑓‘𝑡) + (𝑔‘𝑡))) ∈ 𝐴)
19	18	3adant1r 1173	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) ∧ 𝑓 ∈ 𝐴 ∧ 𝑔 ∈ 𝐴) → (𝑡 ∈ 𝑇 ↦ ((𝑓‘𝑡) + (𝑔‘𝑡))) ∈ 𝐴)
20		stoweidlem46.12	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑓 ∈ 𝐴 ∧ 𝑔 ∈ 𝐴) → (𝑡 ∈ 𝑇 ↦ ((𝑓‘𝑡) · (𝑔‘𝑡))) ∈ 𝐴)
21	20	3adant1r 1173	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) ∧ 𝑓 ∈ 𝐴 ∧ 𝑔 ∈ 𝐴) → (𝑡 ∈ 𝑇 ↦ ((𝑓‘𝑡) · (𝑔‘𝑡))) ∈ 𝐴)
22		stoweidlem46.13	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ ℝ) → (𝑡 ∈ 𝑇 ↦ 𝑥) ∈ 𝐴)
23	22	adantlr 713	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) ∧ 𝑥 ∈ ℝ) → (𝑡 ∈ 𝑇 ↦ 𝑥) ∈ 𝐴)
24		stoweidlem46.14	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑟 ∈ 𝑇 ∧ 𝑡 ∈ 𝑇 ∧ 𝑟 ≠ 𝑡)) → ∃𝑞 ∈ 𝐴 (𝑞‘𝑟) ≠ (𝑞‘𝑡))
25	24	adantlr 713	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) ∧ (𝑟 ∈ 𝑇 ∧ 𝑡 ∈ 𝑇 ∧ 𝑟 ≠ 𝑡)) → ∃𝑞 ∈ 𝐴 (𝑞‘𝑟) ≠ (𝑞‘𝑡))
26		stoweidlem46.15	. . . . . . . 8 ⊢ (𝜑 → 𝑈 ∈ 𝐽)
27	26	adantr 483	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) → 𝑈 ∈ 𝐽)
28		stoweidlem46.16	. . . . . . . 8 ⊢ (𝜑 → 𝑍 ∈ 𝑈)
29	28	adantr 483	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) → 𝑍 ∈ 𝑈)
30		simpr 487	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) → 𝑠 ∈ (𝑇 ∖ 𝑈))
31	3, 9, 10, 11, 12, 13, 15, 17, 19, 21, 23, 25, 27, 29, 30	stoweidlem43 42327	. . . . . 6 ⊢ ((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) → ∃ℎ(ℎ ∈ 𝑄 ∧ 0 < (ℎ‘𝑠)))
32		nfv 1911	. . . . . . 7 ⊢ Ⅎ𝑔(ℎ ∈ 𝑄 ∧ 0 < (ℎ‘𝑠))
33	10	nfel2 2996	. . . . . . . 8 ⊢ Ⅎℎ 𝑔 ∈ 𝑄
34		nfv 1911	. . . . . . . 8 ⊢ Ⅎℎ0 < (𝑔‘𝑠)
35	33, 34	nfan 1896	. . . . . . 7 ⊢ Ⅎℎ(𝑔 ∈ 𝑄 ∧ 0 < (𝑔‘𝑠))
36		eleq1 2900	. . . . . . . 8 ⊢ (ℎ = 𝑔 → (ℎ ∈ 𝑄 ↔ 𝑔 ∈ 𝑄))
37		fveq1 6668	. . . . . . . . 9 ⊢ (ℎ = 𝑔 → (ℎ‘𝑠) = (𝑔‘𝑠))
38	37	breq2d 5077	. . . . . . . 8 ⊢ (ℎ = 𝑔 → (0 < (ℎ‘𝑠) ↔ 0 < (𝑔‘𝑠)))
39	36, 38	anbi12d 632	. . . . . . 7 ⊢ (ℎ = 𝑔 → ((ℎ ∈ 𝑄 ∧ 0 < (ℎ‘𝑠)) ↔ (𝑔 ∈ 𝑄 ∧ 0 < (𝑔‘𝑠))))
40	32, 35, 39	cbvexv1 2358	. . . . . 6 ⊢ (∃ℎ(ℎ ∈ 𝑄 ∧ 0 < (ℎ‘𝑠)) ↔ ∃𝑔(𝑔 ∈ 𝑄 ∧ 0 < (𝑔‘𝑠)))
41	31, 40	sylib 220	. . . . 5 ⊢ ((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) → ∃𝑔(𝑔 ∈ 𝑄 ∧ 0 < (𝑔‘𝑠)))
42		stoweidlem46.17	. . . . . . . 8 ⊢ (𝜑 → 𝑇 ∈ V)
43		rabexg 5233	. . . . . . . 8 ⊢ (𝑇 ∈ V → {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∈ V)
44	42, 43	syl 17	. . . . . . 7 ⊢ (𝜑 → {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∈ V)
45	44	ad2antrr 724	. . . . . 6 ⊢ (((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) ∧ (𝑔 ∈ 𝑄 ∧ 0 < (𝑔‘𝑠))) → {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∈ V)
46		eldifi 4102	. . . . . . . 8 ⊢ (𝑠 ∈ (𝑇 ∖ 𝑈) → 𝑠 ∈ 𝑇)
47	46	ad2antlr 725	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) ∧ (𝑔 ∈ 𝑄 ∧ 0 < (𝑔‘𝑠))) → 𝑠 ∈ 𝑇)
48		simprr 771	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) ∧ (𝑔 ∈ 𝑄 ∧ 0 < (𝑔‘𝑠))) → 0 < (𝑔‘𝑠))
49		fveq2 6669	. . . . . . . . 9 ⊢ (𝑡 = 𝑠 → (𝑔‘𝑡) = (𝑔‘𝑠))
50	49	breq2d 5077	. . . . . . . 8 ⊢ (𝑡 = 𝑠 → (0 < (𝑔‘𝑡) ↔ 0 < (𝑔‘𝑠)))
51	50	elrab 3679	. . . . . . 7 ⊢ (𝑠 ∈ {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ↔ (𝑠 ∈ 𝑇 ∧ 0 < (𝑔‘𝑠)))
52	47, 48, 51	sylanbrc 585	. . . . . 6 ⊢ (((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) ∧ (𝑔 ∈ 𝑄 ∧ 0 < (𝑔‘𝑠))) → 𝑠 ∈ {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)})
53		simpll 765	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) ∧ (𝑔 ∈ 𝑄 ∧ 0 < (𝑔‘𝑠))) → 𝜑)
54	16	adantr 483	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑔 ∈ 𝑄) → 𝐴 ⊆ (𝐽 Cn 𝐾))
55		simpr 487	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑔 ∈ 𝑄) → 𝑔 ∈ 𝑄)
56	55, 12	eleqtrdi 2923	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑔 ∈ 𝑄) → 𝑔 ∈ {ℎ ∈ 𝐴 ∣ ((ℎ‘𝑍) = 0 ∧ ∀𝑡 ∈ 𝑇 (0 ≤ (ℎ‘𝑡) ∧ (ℎ‘𝑡) ≤ 1))})
57		fveq1 6668	. . . . . . . . . . . . . . . 16 ⊢ (ℎ = 𝑔 → (ℎ‘𝑍) = (𝑔‘𝑍))
58	57	eqeq1d 2823	. . . . . . . . . . . . . . 15 ⊢ (ℎ = 𝑔 → ((ℎ‘𝑍) = 0 ↔ (𝑔‘𝑍) = 0))
59		fveq1 6668	. . . . . . . . . . . . . . . . . 18 ⊢ (ℎ = 𝑔 → (ℎ‘𝑡) = (𝑔‘𝑡))
60	59	breq2d 5077	. . . . . . . . . . . . . . . . 17 ⊢ (ℎ = 𝑔 → (0 ≤ (ℎ‘𝑡) ↔ 0 ≤ (𝑔‘𝑡)))
61	59	breq1d 5075	. . . . . . . . . . . . . . . . 17 ⊢ (ℎ = 𝑔 → ((ℎ‘𝑡) ≤ 1 ↔ (𝑔‘𝑡) ≤ 1))
62	60, 61	anbi12d 632	. . . . . . . . . . . . . . . 16 ⊢ (ℎ = 𝑔 → ((0 ≤ (ℎ‘𝑡) ∧ (ℎ‘𝑡) ≤ 1) ↔ (0 ≤ (𝑔‘𝑡) ∧ (𝑔‘𝑡) ≤ 1)))
63	62	ralbidv 3197	. . . . . . . . . . . . . . 15 ⊢ (ℎ = 𝑔 → (∀𝑡 ∈ 𝑇 (0 ≤ (ℎ‘𝑡) ∧ (ℎ‘𝑡) ≤ 1) ↔ ∀𝑡 ∈ 𝑇 (0 ≤ (𝑔‘𝑡) ∧ (𝑔‘𝑡) ≤ 1)))
64	58, 63	anbi12d 632	. . . . . . . . . . . . . 14 ⊢ (ℎ = 𝑔 → (((ℎ‘𝑍) = 0 ∧ ∀𝑡 ∈ 𝑇 (0 ≤ (ℎ‘𝑡) ∧ (ℎ‘𝑡) ≤ 1)) ↔ ((𝑔‘𝑍) = 0 ∧ ∀𝑡 ∈ 𝑇 (0 ≤ (𝑔‘𝑡) ∧ (𝑔‘𝑡) ≤ 1))))
65	64	elrab 3679	. . . . . . . . . . . . 13 ⊢ (𝑔 ∈ {ℎ ∈ 𝐴 ∣ ((ℎ‘𝑍) = 0 ∧ ∀𝑡 ∈ 𝑇 (0 ≤ (ℎ‘𝑡) ∧ (ℎ‘𝑡) ≤ 1))} ↔ (𝑔 ∈ 𝐴 ∧ ((𝑔‘𝑍) = 0 ∧ ∀𝑡 ∈ 𝑇 (0 ≤ (𝑔‘𝑡) ∧ (𝑔‘𝑡) ≤ 1))))
66	56, 65	sylib 220	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑔 ∈ 𝑄) → (𝑔 ∈ 𝐴 ∧ ((𝑔‘𝑍) = 0 ∧ ∀𝑡 ∈ 𝑇 (0 ≤ (𝑔‘𝑡) ∧ (𝑔‘𝑡) ≤ 1))))
67	66	simpld 497	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑔 ∈ 𝑄) → 𝑔 ∈ 𝐴)
68	54, 67	sseldd 3967	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑔 ∈ 𝑄) → 𝑔 ∈ (𝐽 Cn 𝐾))
69	68	ad2ant2r 745	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) ∧ (𝑔 ∈ 𝑄 ∧ 0 < (𝑔‘𝑠))) → 𝑔 ∈ (𝐽 Cn 𝐾))
70		nfcv 2977	. . . . . . . . . 10 ⊢ Ⅎ𝑡0
71		nfcv 2977	. . . . . . . . . 10 ⊢ Ⅎ𝑡𝑔
72		nfv 1911	. . . . . . . . . . 11 ⊢ Ⅎ𝑡 𝑔 ∈ (𝐽 Cn 𝐾)
73	4, 72	nfan 1896	. . . . . . . . . 10 ⊢ Ⅎ𝑡(𝜑 ∧ 𝑔 ∈ (𝐽 Cn 𝐾))
74		eqid 2821	. . . . . . . . . 10 ⊢ {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} = {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)}
75		0xr 10687	. . . . . . . . . . 11 ⊢ 0 ∈ ℝ*
76	75	a1i 11	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑔 ∈ (𝐽 Cn 𝐾)) → 0 ∈ ℝ*)
77		simpr 487	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑔 ∈ (𝐽 Cn 𝐾)) → 𝑔 ∈ (𝐽 Cn 𝐾))
78	70, 71, 73, 11, 13, 74, 76, 77	rfcnpre1 41274	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑔 ∈ (𝐽 Cn 𝐾)) → {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∈ 𝐽)
79	53, 69, 78	syl2anc 586	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) ∧ (𝑔 ∈ 𝑄 ∧ 0 < (𝑔‘𝑠))) → {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∈ 𝐽)
80		eqidd 2822	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑔 ∈ 𝑄) → {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} = {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)})
81		nfv 1911	. . . . . . . . . . 11 ⊢ Ⅎℎ{𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} = {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)}
82		nfcv 2977	. . . . . . . . . . 11 ⊢ Ⅎℎ𝑔
83	59	breq2d 5077	. . . . . . . . . . . . 13 ⊢ (ℎ = 𝑔 → (0 < (ℎ‘𝑡) ↔ 0 < (𝑔‘𝑡)))
84	83	rabbidv 3480	. . . . . . . . . . . 12 ⊢ (ℎ = 𝑔 → {𝑡 ∈ 𝑇 ∣ 0 < (ℎ‘𝑡)} = {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)})
85	84	eqeq2d 2832	. . . . . . . . . . 11 ⊢ (ℎ = 𝑔 → ({𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} = {𝑡 ∈ 𝑇 ∣ 0 < (ℎ‘𝑡)} ↔ {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} = {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)}))
86	81, 82, 10, 85	rspcegf 41278	. . . . . . . . . 10 ⊢ ((𝑔 ∈ 𝑄 ∧ {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} = {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)}) → ∃ℎ ∈ 𝑄 {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} = {𝑡 ∈ 𝑇 ∣ 0 < (ℎ‘𝑡)})
87	55, 80, 86	syl2anc 586	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑔 ∈ 𝑄) → ∃ℎ ∈ 𝑄 {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} = {𝑡 ∈ 𝑇 ∣ 0 < (ℎ‘𝑡)})
88	87	ad2ant2r 745	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) ∧ (𝑔 ∈ 𝑄 ∧ 0 < (𝑔‘𝑠))) → ∃ℎ ∈ 𝑄 {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} = {𝑡 ∈ 𝑇 ∣ 0 < (ℎ‘𝑡)})
89		eqeq1 2825	. . . . . . . . . 10 ⊢ (𝑤 = {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} → (𝑤 = {𝑡 ∈ 𝑇 ∣ 0 < (ℎ‘𝑡)} ↔ {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} = {𝑡 ∈ 𝑇 ∣ 0 < (ℎ‘𝑡)}))
90	89	rexbidv 3297	. . . . . . . . 9 ⊢ (𝑤 = {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} → (∃ℎ ∈ 𝑄 𝑤 = {𝑡 ∈ 𝑇 ∣ 0 < (ℎ‘𝑡)} ↔ ∃ℎ ∈ 𝑄 {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} = {𝑡 ∈ 𝑇 ∣ 0 < (ℎ‘𝑡)}))
91	90	elrab 3679	. . . . . . . 8 ⊢ ({𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∈ {𝑤 ∈ 𝐽 ∣ ∃ℎ ∈ 𝑄 𝑤 = {𝑡 ∈ 𝑇 ∣ 0 < (ℎ‘𝑡)}} ↔ ({𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∈ 𝐽 ∧ ∃ℎ ∈ 𝑄 {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} = {𝑡 ∈ 𝑇 ∣ 0 < (ℎ‘𝑡)}))
92	79, 88, 91	sylanbrc 585	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) ∧ (𝑔 ∈ 𝑄 ∧ 0 < (𝑔‘𝑠))) → {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∈ {𝑤 ∈ 𝐽 ∣ ∃ℎ ∈ 𝑄 𝑤 = {𝑡 ∈ 𝑇 ∣ 0 < (ℎ‘𝑡)}})
93		stoweidlem46.7	. . . . . . 7 ⊢ 𝑊 = {𝑤 ∈ 𝐽 ∣ ∃ℎ ∈ 𝑄 𝑤 = {𝑡 ∈ 𝑇 ∣ 0 < (ℎ‘𝑡)}}
94	92, 93	eleqtrrdi 2924	. . . . . 6 ⊢ (((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) ∧ (𝑔 ∈ 𝑄 ∧ 0 < (𝑔‘𝑠))) → {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∈ 𝑊)
95		nfcv 2977	. . . . . . . 8 ⊢ Ⅎ𝑤{𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)}
96		nfv 1911	. . . . . . . . 9 ⊢ Ⅎ𝑤 𝑠 ∈ {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)}
97		nfrab1 3384	. . . . . . . . . . 11 ⊢ Ⅎ𝑤{𝑤 ∈ 𝐽 ∣ ∃ℎ ∈ 𝑄 𝑤 = {𝑡 ∈ 𝑇 ∣ 0 < (ℎ‘𝑡)}}
98	93, 97	nfcxfr 2975	. . . . . . . . . 10 ⊢ Ⅎ𝑤𝑊
99	98	nfel2 2996	. . . . . . . . 9 ⊢ Ⅎ𝑤{𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∈ 𝑊
100	96, 99	nfan 1896	. . . . . . . 8 ⊢ Ⅎ𝑤(𝑠 ∈ {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∧ {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∈ 𝑊)
101		eleq2 2901	. . . . . . . . 9 ⊢ (𝑤 = {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} → (𝑠 ∈ 𝑤 ↔ 𝑠 ∈ {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)}))
102		eleq1 2900	. . . . . . . . 9 ⊢ (𝑤 = {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} → (𝑤 ∈ 𝑊 ↔ {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∈ 𝑊))
103	101, 102	anbi12d 632	. . . . . . . 8 ⊢ (𝑤 = {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} → ((𝑠 ∈ 𝑤 ∧ 𝑤 ∈ 𝑊) ↔ (𝑠 ∈ {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∧ {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∈ 𝑊)))
104	95, 100, 103	spcegf 3590	. . . . . . 7 ⊢ ({𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∈ V → ((𝑠 ∈ {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∧ {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∈ 𝑊) → ∃𝑤(𝑠 ∈ 𝑤 ∧ 𝑤 ∈ 𝑊)))
105	104	imp 409	. . . . . 6 ⊢ (({𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∈ V ∧ (𝑠 ∈ {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∧ {𝑡 ∈ 𝑇 ∣ 0 < (𝑔‘𝑡)} ∈ 𝑊)) → ∃𝑤(𝑠 ∈ 𝑤 ∧ 𝑤 ∈ 𝑊))
106	45, 52, 94, 105	syl12anc 834	. . . . 5 ⊢ (((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) ∧ (𝑔 ∈ 𝑄 ∧ 0 < (𝑔‘𝑠))) → ∃𝑤(𝑠 ∈ 𝑤 ∧ 𝑤 ∈ 𝑊))
107	41, 106	exlimddv 1932	. . . 4 ⊢ ((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) → ∃𝑤(𝑠 ∈ 𝑤 ∧ 𝑤 ∈ 𝑊))
108		nfcv 2977	. . . . 5 ⊢ Ⅎ𝑤𝑠
109	108, 98	elunif 41271	. . . 4 ⊢ (𝑠 ∈ ∪ 𝑊 ↔ ∃𝑤(𝑠 ∈ 𝑤 ∧ 𝑤 ∈ 𝑊))
110	107, 109	sylibr 236	. . 3 ⊢ ((𝜑 ∧ 𝑠 ∈ (𝑇 ∖ 𝑈)) → 𝑠 ∈ ∪ 𝑊)
111	110	ex 415	. 2 ⊢ (𝜑 → (𝑠 ∈ (𝑇 ∖ 𝑈) → 𝑠 ∈ ∪ 𝑊))
112	111	ssrdv 3972	1 ⊢ (𝜑 → (𝑇 ∖ 𝑈) ⊆ ∪ 𝑊)

Syntax hints:   → wi 4   ∧ wa 398   ∧ w3a 1083   = wceq 1533  ∃wex 1776  Ⅎwnf 1780   ∈ wcel 2110  Ⅎwnfc 2961   ≠ wne 3016  ∀wral 3138  ∃wrex 3139  {crab 3142  Vcvv 3494   ∖ cdif 3932   ⊆ wss 3935  ∪ cuni 4837   class class class wbr 5065   ↦ cmpt 5145  ran crn 5555  ‘cfv 6354  (class class class)co 7155  ℝcr 10535  0cc0 10536  1c1 10537   + caddc 10539   · cmul 10541  ℝ^*cxr 10673   < clt 10674   ≤ cle 10675  (,)cioo 12737  topGenctg 16710   Cn ccn 21831  Compccmp 21993

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1907  ax-6 1966  ax-7 2011  ax-8 2112  ax-9 2120  ax-10 2141  ax-11 2157  ax-12 2173  ax-ext 2793  ax-rep 5189  ax-sep 5202  ax-nul 5209  ax-pow 5265  ax-pr 5329  ax-un 7460  ax-cnex 10592  ax-resscn 10593  ax-1cn 10594  ax-icn 10595  ax-addcl 10596  ax-addrcl 10597  ax-mulcl 10598  ax-mulrcl 10599  ax-mulcom 10600  ax-addass 10601  ax-mulass 10602  ax-distr 10603  ax-i2m1 10604  ax-1ne0 10605  ax-1rid 10606  ax-rnegex 10607  ax-rrecex 10608  ax-cnre 10609  ax-pre-lttri 10610  ax-pre-lttrn 10611  ax-pre-ltadd 10612  ax-pre-mulgt0 10613  ax-pre-sup 10614  ax-mulf 10616

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3or 1084  df-3an 1085  df-tru 1536  df-ex 1777  df-nf 1781  df-sb 2066  df-mo 2618  df-eu 2650  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ne 3017  df-nel 3124  df-ral 3143  df-rex 3144  df-reu 3145  df-rmo 3146  df-rab 3147  df-v 3496  df-sbc 3772  df-csb 3883  df-dif 3938  df-un 3940  df-in 3942  df-ss 3951  df-pss 3953  df-nul 4291  df-if 4467  df-pw 4540  df-sn 4567  df-pr 4569  df-tp 4571  df-op 4573  df-uni 4838  df-int 4876  df-iun 4920  df-iin 4921  df-br 5066  df-opab 5128  df-mpt 5146  df-tr 5172  df-id 5459  df-eprel 5464  df-po 5473  df-so 5474  df-fr 5513  df-se 5514  df-we 5515  df-xp 5560  df-rel 5561  df-cnv 5562  df-co 5563  df-dm 5564  df-rn 5565  df-res 5566  df-ima 5567  df-pred 6147  df-ord 6193  df-on 6194  df-lim 6195  df-suc 6196  df-iota 6313  df-fun 6356  df-fn 6357  df-f 6358  df-f1 6359  df-fo 6360  df-f1o 6361  df-fv 6362  df-isom 6363  df-riota 7113  df-ov 7158  df-oprab 7159  df-mpo 7160  df-of 7408  df-om 7580  df-1st 7688  df-2nd 7689  df-supp 7830  df-wrecs 7946  df-recs 8007  df-rdg 8045  df-1o 8101  df-2o 8102  df-oadd 8105  df-er 8288  df-map 8407  df-ixp 8461  df-en 8509  df-dom 8510  df-sdom 8511  df-fin 8512  df-fsupp 8833  df-fi 8874  df-sup 8905  df-inf 8906  df-oi 8973  df-card 9367  df-pnf 10676  df-mnf 10677  df-xr 10678  df-ltxr 10679  df-le 10680  df-sub 10871  df-neg 10872  df-div 11297  df-nn 11638  df-2 11699  df-3 11700  df-4 11701  df-5 11702  df-6 11703  df-7 11704  df-8 11705  df-9 11706  df-n0 11897  df-z 11981  df-dec 12098  df-uz 12243  df-q 12348  df-rp 12389  df-xneg 12506  df-xadd 12507  df-xmul 12508  df-ioo 12741  df-icc 12744  df-fz 12892  df-fzo 13033  df-seq 13369  df-exp 13429  df-hash 13690  df-cj 14457  df-re 14458  df-im 14459  df-sqrt 14593  df-abs 14594  df-struct 16484  df-ndx 16485  df-slot 16486  df-base 16488  df-sets 16489  df-ress 16490  df-plusg 16577  df-mulr 16578  df-starv 16579  df-sca 16580  df-vsca 16581  df-ip 16582  df-tset 16583  df-ple 16584  df-ds 16586  df-unif 16587  df-hom 16588  df-cco 16589  df-rest 16695  df-topn 16696  df-0g 16714  df-gsum 16715  df-topgen 16716  df-pt 16717  df-prds 16720  df-xrs 16774  df-qtop 16779  df-imas 16780  df-xps 16782  df-mre 16856  df-mrc 16857  df-acs 16859  df-mgm 17851  df-sgrp 17900  df-mnd 17911  df-submnd 17956  df-mulg 18224  df-cntz 18446  df-cmn 18907  df-psmet 20536  df-xmet 20537  df-met 20538  df-bl 20539  df-mopn 20540  df-cnfld 20545  df-top 21501  df-topon 21518  df-topsp 21540  df-bases 21553  df-cn 21834  df-cnp 21835  df-cmp 21994  df-tx 22169  df-hmeo 22362  df-xms 22929  df-ms 22930  df-tms 22931

This theorem is referenced by:  stoweidlem50  42334