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Theorem lssssr 20513

Description: Conclude subspace ordering from nonzero vector membership. (ssrdv 3984 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 485	. . . . 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 20506	. . . . . . 7 ⊢ ((𝑊 ∈ LMod ∧ 𝑈 ∈ 𝑆) → 0 ∈ 𝑈)
7	2, 3, 6	syl2anc 584	. . . . . 6 ⊢ (𝜑 → 0 ∈ 𝑈)
8	7	adantr 481	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 = 0 ) → 0 ∈ 𝑈)
9	1, 8	eqeltrd 2832	. . . 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 3977	. . . . . 6 ⊢ (𝜑 → (𝑥 ∈ 𝑇 → 𝑥 ∈ 𝑉))
13	12	ancrd 552	. . . . 5 ⊢ (𝜑 → (𝑥 ∈ 𝑇 → (𝑥 ∈ 𝑉 ∧ 𝑥 ∈ 𝑇)))
14	13	adantr 481	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ≠ 0 ) → (𝑥 ∈ 𝑇 → (𝑥 ∈ 𝑉 ∧ 𝑥 ∈ 𝑇)))
15		eldifsn 4783	. . . . . . . 8 ⊢ (𝑥 ∈ (𝑉 ∖ { 0 }) ↔ (𝑥 ∈ 𝑉 ∧ 𝑥 ≠ 0 ))
16		lssssr.1	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ (𝑉 ∖ { 0 })) → (𝑥 ∈ 𝑇 → 𝑥 ∈ 𝑈))
17	15, 16	sylan2br 595	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑉 ∧ 𝑥 ≠ 0 )) → (𝑥 ∈ 𝑇 → 𝑥 ∈ 𝑈))
18	17	exp32 421	. . . . . 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 422	. . . 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 3028	. 2 ⊢ (𝜑 → (𝑥 ∈ 𝑇 → 𝑥 ∈ 𝑈))
23	22	ssrdv 3984	1 ⊢ (𝜑 → 𝑇 ⊆ 𝑈)

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 396 = wceq 1541 ∈ wcel 2106 ≠ wne 2939 ∖ cdif 3941 ⊆ wss 3944 {csn 4622 ‘cfv 6532 0_gc0g 17367 LModclmod 20420 LSubSpclss 20491

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2702 ax-sep 5292 ax-nul 5299 ax-pow 5356 ax-pr 5420 ax-un 7708 ax-cnex 11148 ax-resscn 11149 ax-1cn 11150 ax-icn 11151 ax-addcl 11152 ax-addrcl 11153 ax-mulcl 11154 ax-mulrcl 11155 ax-mulcom 11156 ax-addass 11157 ax-mulass 11158 ax-distr 11159 ax-i2m1 11160 ax-1ne0 11161 ax-1rid 11162 ax-rnegex 11163 ax-rrecex 11164 ax-cnre 11165 ax-pre-lttri 11166 ax-pre-lttrn 11167 ax-pre-ltadd 11168 ax-pre-mulgt0 11169

This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2533 df-eu 2562 df-clab 2709 df-cleq 2723 df-clel 2809 df-nfc 2884 df-ne 2940 df-nel 3046 df-ral 3061 df-rex 3070 df-rmo 3375 df-reu 3376 df-rab 3432 df-v 3475 df-sbc 3774 df-csb 3890 df-dif 3947 df-un 3949 df-in 3951 df-ss 3961 df-pss 3963 df-nul 4319 df-if 4523 df-pw 4598 df-sn 4623 df-pr 4625 df-op 4629 df-uni 4902 df-iun 4992 df-br 5142 df-opab 5204 df-mpt 5225 df-tr 5259 df-id 5567 df-eprel 5573 df-po 5581 df-so 5582 df-fr 5624 df-we 5626 df-xp 5675 df-rel 5676 df-cnv 5677 df-co 5678 df-dm 5679 df-rn 5680 df-res 5681 df-ima 5682 df-pred 6289 df-ord 6356 df-on 6357 df-lim 6358 df-suc 6359 df-iota 6484 df-fun 6534 df-fn 6535 df-f 6536 df-f1 6537 df-fo 6538 df-f1o 6539 df-fv 6540 df-riota 7349 df-ov 7396 df-oprab 7397 df-mpo 7398 df-om 7839 df-1st 7957 df-2nd 7958 df-frecs 8248 df-wrecs 8279 df-recs 8353 df-rdg 8392 df-er 8686 df-en 8923 df-dom 8924 df-sdom 8925 df-pnf 11232 df-mnf 11233 df-xr 11234 df-ltxr 11235 df-le 11236 df-sub 11428 df-neg 11429 df-nn 12195 df-2 12257 df-sets 17079 df-slot 17097 df-ndx 17109 df-base 17127 df-plusg 17192 df-0g 17369 df-mgm 18543 df-sgrp 18592 df-mnd 18603 df-grp 18797 df-minusg 18798 df-sbg 18799 df-mgp 19947 df-ur 19964 df-ring 20016 df-lmod 20422 df-lss 20492

This theorem is referenced by: dihjat1lem 40104

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