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Theorem lssssr 20130

Description: Conclude subspace ordering from nonzero vector membership. (ssrdv 3923 analog.) (Contributed by NM, 17-Aug-2014.) (Revised by AV, 13-Jul-2022.)

**Hypotheses**
Ref	Expression
lssssr.o	⊢ 0 = (0_g‘𝑊)
lssssr.s	⊢ 𝑆 = (LSubSp‘𝑊)
lssssr.w	⊢ (𝜑 → 𝑊 ∈ LMod)
lssssr.t	⊢ (𝜑 → 𝑇 ⊆ 𝑉)
lssssr.u	⊢ (𝜑 → 𝑈 ∈ 𝑆)
lssssr.1	⊢ ((𝜑 ∧ 𝑥 ∈ (𝑉 ∖ { 0 })) → (𝑥 ∈ 𝑇 → 𝑥 ∈ 𝑈))

**Assertion**
Ref	Expression
lssssr	⊢ (𝜑 → 𝑇 ⊆ 𝑈)

Distinct variable groups: 𝑥,𝑇 𝑥,𝑈 𝜑,𝑥 Allowed substitution hints: 𝑆(𝑥) 𝑉(𝑥) 𝑊(𝑥) 0 (𝑥)

**Proof of Theorem lssssr**
Step	Hyp	Ref	Expression
1		simpr 484	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 = 0 ) → 𝑥 = 0 )
2		lssssr.w	. . . . . . 7 ⊢ (𝜑 → 𝑊 ∈ LMod)
3		lssssr.u	. . . . . . 7 ⊢ (𝜑 → 𝑈 ∈ 𝑆)
4		lssssr.o	. . . . . . . 8 ⊢ 0 = (0_g‘𝑊)
5		lssssr.s	. . . . . . . 8 ⊢ 𝑆 = (LSubSp‘𝑊)
6	4, 5	lss0cl 20123	. . . . . . 7 ⊢ ((𝑊 ∈ LMod ∧ 𝑈 ∈ 𝑆) → 0 ∈ 𝑈)
7	2, 3, 6	syl2anc 583	. . . . . 6 ⊢ (𝜑 → 0 ∈ 𝑈)
8	7	adantr 480	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 = 0 ) → 0 ∈ 𝑈)
9	1, 8	eqeltrd 2839	. . . 4 ⊢ ((𝜑 ∧ 𝑥 = 0 ) → 𝑥 ∈ 𝑈)
10	9	a1d 25	. . 3 ⊢ ((𝜑 ∧ 𝑥 = 0 ) → (𝑥 ∈ 𝑇 → 𝑥 ∈ 𝑈))
11		lssssr.t	. . . . . . 7 ⊢ (𝜑 → 𝑇 ⊆ 𝑉)
12	11	sseld 3916	. . . . . 6 ⊢ (𝜑 → (𝑥 ∈ 𝑇 → 𝑥 ∈ 𝑉))
13	12	ancrd 551	. . . . 5 ⊢ (𝜑 → (𝑥 ∈ 𝑇 → (𝑥 ∈ 𝑉 ∧ 𝑥 ∈ 𝑇)))
14	13	adantr 480	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ≠ 0 ) → (𝑥 ∈ 𝑇 → (𝑥 ∈ 𝑉 ∧ 𝑥 ∈ 𝑇)))
15		eldifsn 4717	. . . . . . . 8 ⊢ (𝑥 ∈ (𝑉 ∖ { 0 }) ↔ (𝑥 ∈ 𝑉 ∧ 𝑥 ≠ 0 ))
16		lssssr.1	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ (𝑉 ∖ { 0 })) → (𝑥 ∈ 𝑇 → 𝑥 ∈ 𝑈))
17	15, 16	sylan2br 594	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑉 ∧ 𝑥 ≠ 0 )) → (𝑥 ∈ 𝑇 → 𝑥 ∈ 𝑈))
18	17	exp32 420	. . . . . 6 ⊢ (𝜑 → (𝑥 ∈ 𝑉 → (𝑥 ≠ 0 → (𝑥 ∈ 𝑇 → 𝑥 ∈ 𝑈))))
19	18	com23 86	. . . . 5 ⊢ (𝜑 → (𝑥 ≠ 0 → (𝑥 ∈ 𝑉 → (𝑥 ∈ 𝑇 → 𝑥 ∈ 𝑈))))
20	19	imp4b 421	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ≠ 0 ) → ((𝑥 ∈ 𝑉 ∧ 𝑥 ∈ 𝑇) → 𝑥 ∈ 𝑈))
21	14, 20	syld 47	. . 3 ⊢ ((𝜑 ∧ 𝑥 ≠ 0 ) → (𝑥 ∈ 𝑇 → 𝑥 ∈ 𝑈))
22	10, 21	pm2.61dane 3031	. 2 ⊢ (𝜑 → (𝑥 ∈ 𝑇 → 𝑥 ∈ 𝑈))
23	22	ssrdv 3923	1 ⊢ (𝜑 → 𝑇 ⊆ 𝑈)

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 395 = wceq 1539 ∈ wcel 2108 ≠ wne 2942 ∖ cdif 3880 ⊆ wss 3883 {csn 4558 ‘cfv 6418 0_gc0g 17067 LModclmod 20038 LSubSpclss 20108

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879

This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rmo 3071 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-1st 7804 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-er 8456 df-en 8692 df-dom 8693 df-sdom 8694 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-nn 11904 df-2 11966 df-sets 16793 df-slot 16811 df-ndx 16823 df-base 16841 df-plusg 16901 df-0g 17069 df-mgm 18241 df-sgrp 18290 df-mnd 18301 df-grp 18495 df-minusg 18496 df-sbg 18497 df-mgp 19636 df-ur 19653 df-ring 19700 df-lmod 20040 df-lss 20109

This theorem is referenced by: dihjat1lem 39369

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