cvmliftlem2 - Mathbox for Mario Carneiro

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Theorem cvmliftlem2 35280

Description: Lemma for cvmlift 35293. 𝑊 = [(𝑘 − 1) / 𝑁, 𝑘 / 𝑁] is a subset of [0, 1] for each 𝑀 ∈ (1...𝑁). (Contributed by Mario Carneiro, 16-Feb-2015.)

**Hypotheses**
Ref	Expression
cvmliftlem.1	⊢ 𝑆 = (𝑘 ∈ 𝐽 ↦ {𝑠 ∈ (𝒫 𝐶 ∖ {∅}) ∣ (∪ 𝑠 = (^◡𝐹 “ 𝑘) ∧ ∀𝑢 ∈ 𝑠 (∀𝑣 ∈ (𝑠 ∖ {𝑢})(𝑢 ∩ 𝑣) = ∅ ∧ (𝐹 ↾ 𝑢) ∈ ((𝐶 ↾_t 𝑢)Homeo(𝐽 ↾_t 𝑘))))})
cvmliftlem.b	⊢ 𝐵 = ∪ 𝐶
cvmliftlem.x	⊢ 𝑋 = ∪ 𝐽
cvmliftlem.f	⊢ (𝜑 → 𝐹 ∈ (𝐶 CovMap 𝐽))
cvmliftlem.g	⊢ (𝜑 → 𝐺 ∈ (II Cn 𝐽))
cvmliftlem.p	⊢ (𝜑 → 𝑃 ∈ 𝐵)
cvmliftlem.e	⊢ (𝜑 → (𝐹‘𝑃) = (𝐺‘0))
cvmliftlem.n	⊢ (𝜑 → 𝑁 ∈ ℕ)
cvmliftlem.t	⊢ (𝜑 → 𝑇:(1...𝑁)⟶∪ 𝑗 ∈ 𝐽 ({𝑗} × (𝑆‘𝑗)))
cvmliftlem.a	⊢ (𝜑 → ∀𝑘 ∈ (1...𝑁)(𝐺 “ (((𝑘 − 1) / 𝑁)[,](𝑘 / 𝑁))) ⊆ (1^st ‘(𝑇‘𝑘)))
cvmliftlem.l	⊢ 𝐿 = (topGen‘ran (,))
cvmliftlem1.m	⊢ ((𝜑 ∧ 𝜓) → 𝑀 ∈ (1...𝑁))
cvmliftlem3.3	⊢ 𝑊 = (((𝑀 − 1) / 𝑁)[,](𝑀 / 𝑁))

**Assertion**
Ref	Expression
cvmliftlem2	⊢ ((𝜑 ∧ 𝜓) → 𝑊 ⊆ (0[,]1))

Distinct variable groups: 𝑣,𝐵 𝑗,𝑘,𝑠,𝑢,𝑣,𝐹 𝑗,𝑀,𝑘,𝑠,𝑢,𝑣 𝑃,𝑘,𝑢,𝑣 𝐶,𝑗,𝑘,𝑠,𝑢,𝑣 𝜑,𝑗,𝑠 𝑘,𝑁,𝑢,𝑣 𝑆,𝑗,𝑘,𝑠,𝑢,𝑣 𝑗,𝑋 𝑗,𝐺,𝑘,𝑠,𝑢,𝑣 𝑇,𝑗,𝑘,𝑠,𝑢,𝑣 𝑗,𝐽,𝑘,𝑠,𝑢,𝑣 𝑘,𝑊 Allowed substitution hints: 𝜑(𝑣,𝑢,𝑘) 𝜓(𝑣,𝑢,𝑗,𝑘,𝑠) 𝐵(𝑢,𝑗,𝑘,𝑠) 𝑃(𝑗,𝑠) 𝐿(𝑣,𝑢,𝑗,𝑘,𝑠) 𝑁(𝑗,𝑠) 𝑊(𝑣,𝑢,𝑗,𝑠) 𝑋(𝑣,𝑢,𝑘,𝑠)

**Proof of Theorem cvmliftlem2**
Step	Hyp	Ref	Expression
1		cvmliftlem3.3	. 2 ⊢ 𝑊 = (((𝑀 − 1) / 𝑁)[,](𝑀 / 𝑁))
2		0red 11184	. . 3 ⊢ ((𝜑 ∧ 𝜓) → 0 ∈ ℝ)
3		1red 11182	. . 3 ⊢ ((𝜑 ∧ 𝜓) → 1 ∈ ℝ)
4		cvmliftlem1.m	. . . . . . 7 ⊢ ((𝜑 ∧ 𝜓) → 𝑀 ∈ (1...𝑁))
5		elfznn 13521	. . . . . . 7 ⊢ (𝑀 ∈ (1...𝑁) → 𝑀 ∈ ℕ)
6	4, 5	syl 17	. . . . . 6 ⊢ ((𝜑 ∧ 𝜓) → 𝑀 ∈ ℕ)
7	6	nnred 12208	. . . . 5 ⊢ ((𝜑 ∧ 𝜓) → 𝑀 ∈ ℝ)
8		peano2rem 11496	. . . . 5 ⊢ (𝑀 ∈ ℝ → (𝑀 − 1) ∈ ℝ)
9	7, 8	syl 17	. . . 4 ⊢ ((𝜑 ∧ 𝜓) → (𝑀 − 1) ∈ ℝ)
10		nnm1nn0 12490	. . . . . 6 ⊢ (𝑀 ∈ ℕ → (𝑀 − 1) ∈ ℕ₀)
11	6, 10	syl 17	. . . . 5 ⊢ ((𝜑 ∧ 𝜓) → (𝑀 − 1) ∈ ℕ₀)
12	11	nn0ge0d 12513	. . . 4 ⊢ ((𝜑 ∧ 𝜓) → 0 ≤ (𝑀 − 1))
13		cvmliftlem.n	. . . . . 6 ⊢ (𝜑 → 𝑁 ∈ ℕ)
14	13	adantr 480	. . . . 5 ⊢ ((𝜑 ∧ 𝜓) → 𝑁 ∈ ℕ)
15	14	nnred 12208	. . . 4 ⊢ ((𝜑 ∧ 𝜓) → 𝑁 ∈ ℝ)
16	14	nngt0d 12242	. . . 4 ⊢ ((𝜑 ∧ 𝜓) → 0 < 𝑁)
17		divge0 12059	. . . 4 ⊢ ((((𝑀 − 1) ∈ ℝ ∧ 0 ≤ (𝑀 − 1)) ∧ (𝑁 ∈ ℝ ∧ 0 < 𝑁)) → 0 ≤ ((𝑀 − 1) / 𝑁))
18	9, 12, 15, 16, 17	syl22anc 838	. . 3 ⊢ ((𝜑 ∧ 𝜓) → 0 ≤ ((𝑀 − 1) / 𝑁))
19		elfzle2 13496	. . . . . 6 ⊢ (𝑀 ∈ (1...𝑁) → 𝑀 ≤ 𝑁)
20	4, 19	syl 17	. . . . 5 ⊢ ((𝜑 ∧ 𝜓) → 𝑀 ≤ 𝑁)
21	14	nncnd 12209	. . . . . 6 ⊢ ((𝜑 ∧ 𝜓) → 𝑁 ∈ ℂ)
22	21	mulridd 11198	. . . . 5 ⊢ ((𝜑 ∧ 𝜓) → (𝑁 · 1) = 𝑁)
23	20, 22	breqtrrd 5138	. . . 4 ⊢ ((𝜑 ∧ 𝜓) → 𝑀 ≤ (𝑁 · 1))
24		ledivmul 12066	. . . . 5 ⊢ ((𝑀 ∈ ℝ ∧ 1 ∈ ℝ ∧ (𝑁 ∈ ℝ ∧ 0 < 𝑁)) → ((𝑀 / 𝑁) ≤ 1 ↔ 𝑀 ≤ (𝑁 · 1)))
25	7, 3, 15, 16, 24	syl112anc 1376	. . . 4 ⊢ ((𝜑 ∧ 𝜓) → ((𝑀 / 𝑁) ≤ 1 ↔ 𝑀 ≤ (𝑁 · 1)))
26	23, 25	mpbird 257	. . 3 ⊢ ((𝜑 ∧ 𝜓) → (𝑀 / 𝑁) ≤ 1)
27		iccss 13382	. . 3 ⊢ (((0 ∈ ℝ ∧ 1 ∈ ℝ) ∧ (0 ≤ ((𝑀 − 1) / 𝑁) ∧ (𝑀 / 𝑁) ≤ 1)) → (((𝑀 − 1) / 𝑁)[,](𝑀 / 𝑁)) ⊆ (0[,]1))
28	2, 3, 18, 26, 27	syl22anc 838	. 2 ⊢ ((𝜑 ∧ 𝜓) → (((𝑀 − 1) / 𝑁)[,](𝑀 / 𝑁)) ⊆ (0[,]1))
29	1, 28	eqsstrid 3988	1 ⊢ ((𝜑 ∧ 𝜓) → 𝑊 ⊆ (0[,]1))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1540 ∈ wcel 2109 ∀wral 3045 {crab 3408 ∖ cdif 3914 ∩ cin 3916 ⊆ wss 3917 ∅c0 4299 𝒫 cpw 4566 {csn 4592 ∪ cuni 4874 ∪ ciun 4958 class class class wbr 5110 ↦ cmpt 5191 × cxp 5639 ^◡ccnv 5640 ran crn 5642 ↾ cres 5643 “ cima 5644 ⟶wf 6510 ‘cfv 6514 (class class class)co 7390 1^st c1st 7969 ℝcr 11074 0cc0 11075 1c1 11076 · cmul 11080 < clt 11215 ≤ cle 11216 − cmin 11412 / cdiv 11842 ℕcn 12193 ℕ₀cn0 12449 (,)cioo 13313 [,]cicc 13316 ...cfz 13475 ↾_t crest 17390 topGenctg 17407 Cn ccn 23118 Homeochmeo 23647 IIcii 24775 CovMap ccvm 35249

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2702 ax-sep 5254 ax-nul 5264 ax-pow 5323 ax-pr 5390 ax-un 7714 ax-cnex 11131 ax-resscn 11132 ax-1cn 11133 ax-icn 11134 ax-addcl 11135 ax-addrcl 11136 ax-mulcl 11137 ax-mulrcl 11138 ax-mulcom 11139 ax-addass 11140 ax-mulass 11141 ax-distr 11142 ax-i2m1 11143 ax-1ne0 11144 ax-1rid 11145 ax-rnegex 11146 ax-rrecex 11147 ax-cnre 11148 ax-pre-lttri 11149 ax-pre-lttrn 11150 ax-pre-ltadd 11151 ax-pre-mulgt0 11152

This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2534 df-eu 2563 df-clab 2709 df-cleq 2722 df-clel 2804 df-nfc 2879 df-ne 2927 df-nel 3031 df-ral 3046 df-rex 3055 df-rmo 3356 df-reu 3357 df-rab 3409 df-v 3452 df-sbc 3757 df-csb 3866 df-dif 3920 df-un 3922 df-in 3924 df-ss 3934 df-pss 3937 df-nul 4300 df-if 4492 df-pw 4568 df-sn 4593 df-pr 4595 df-op 4599 df-uni 4875 df-iun 4960 df-br 5111 df-opab 5173 df-mpt 5192 df-tr 5218 df-id 5536 df-eprel 5541 df-po 5549 df-so 5550 df-fr 5594 df-we 5596 df-xp 5647 df-rel 5648 df-cnv 5649 df-co 5650 df-dm 5651 df-rn 5652 df-res 5653 df-ima 5654 df-pred 6277 df-ord 6338 df-on 6339 df-lim 6340 df-suc 6341 df-iota 6467 df-fun 6516 df-fn 6517 df-f 6518 df-f1 6519 df-fo 6520 df-f1o 6521 df-fv 6522 df-riota 7347 df-ov 7393 df-oprab 7394 df-mpo 7395 df-om 7846 df-1st 7971 df-2nd 7972 df-frecs 8263 df-wrecs 8294 df-recs 8343 df-rdg 8381 df-er 8674 df-en 8922 df-dom 8923 df-sdom 8924 df-pnf 11217 df-mnf 11218 df-xr 11219 df-ltxr 11220 df-le 11221 df-sub 11414 df-neg 11415 df-div 11843 df-nn 12194 df-n0 12450 df-z 12537 df-uz 12801 df-icc 13320 df-fz 13476

This theorem is referenced by: cvmliftlem3 35281 cvmliftlem6 35284 cvmliftlem8 35286

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