lbspss - Metamath Proof Explorer

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Theorem lbspss 20974

Description: No proper subset of a basis spans the space. (Contributed by Mario Carneiro, 25-Jun-2014.)

**Hypotheses**
Ref	Expression
lbsind2.j	⊢ 𝐽 = (LBasis‘𝑊)
lbsind2.n	⊢ 𝑁 = (LSpan‘𝑊)
lbsind2.f	⊢ 𝐹 = (Scalar‘𝑊)
lbsind2.o	⊢ 1 = (1_r‘𝐹)
lbsind2.z	⊢ 0 = (0_g‘𝐹)
lbspss.v	⊢ 𝑉 = (Base‘𝑊)

**Assertion**
Ref	Expression
lbspss	⊢ (((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) → (𝑁‘𝐶) ≠ 𝑉)

Proof of Theorem lbspss Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		pssnel 4474	. . 3 ⊢ (𝐶 ⊊ 𝐵 → ∃𝑥(𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶))
2	1	3ad2ant3 1132	. 2 ⊢ (((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) → ∃𝑥(𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶))
3		simpl2 1189	. . . . . 6 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → 𝐵 ∈ 𝐽)
4		lbspss.v	. . . . . . 7 ⊢ 𝑉 = (Base‘𝑊)
5		lbsind2.j	. . . . . . 7 ⊢ 𝐽 = (LBasis‘𝑊)
6	4, 5	lbsss 20969	. . . . . 6 ⊢ (𝐵 ∈ 𝐽 → 𝐵 ⊆ 𝑉)
7	3, 6	syl 17	. . . . 5 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → 𝐵 ⊆ 𝑉)
8		simprl 769	. . . . 5 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → 𝑥 ∈ 𝐵)
9	7, 8	sseldd 3983	. . . 4 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → 𝑥 ∈ 𝑉)
10		simpl1l 1221	. . . . . 6 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → 𝑊 ∈ LMod)
11	7	ssdifssd 4143	. . . . . 6 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → (𝐵 ∖ {𝑥}) ⊆ 𝑉)
12		simpl3 1190	. . . . . . . . . . 11 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → 𝐶 ⊊ 𝐵)
13	12	pssssd 4097	. . . . . . . . . 10 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → 𝐶 ⊆ 𝐵)
14	13	sseld 3981	. . . . . . . . 9 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → (𝑦 ∈ 𝐶 → 𝑦 ∈ 𝐵))
15		simprr 771	. . . . . . . . . . 11 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → ¬ 𝑥 ∈ 𝐶)
16		eleq1w 2812	. . . . . . . . . . . 12 ⊢ (𝑦 = 𝑥 → (𝑦 ∈ 𝐶 ↔ 𝑥 ∈ 𝐶))
17	16	notbid 317	. . . . . . . . . . 11 ⊢ (𝑦 = 𝑥 → (¬ 𝑦 ∈ 𝐶 ↔ ¬ 𝑥 ∈ 𝐶))
18	15, 17	syl5ibrcom 246	. . . . . . . . . 10 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → (𝑦 = 𝑥 → ¬ 𝑦 ∈ 𝐶))
19	18	necon2ad 2952	. . . . . . . . 9 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → (𝑦 ∈ 𝐶 → 𝑦 ≠ 𝑥))
20	14, 19	jcad 511	. . . . . . . 8 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → (𝑦 ∈ 𝐶 → (𝑦 ∈ 𝐵 ∧ 𝑦 ≠ 𝑥)))
21		eldifsn 4795	. . . . . . . 8 ⊢ (𝑦 ∈ (𝐵 ∖ {𝑥}) ↔ (𝑦 ∈ 𝐵 ∧ 𝑦 ≠ 𝑥))
22	20, 21	imbitrrdi 251	. . . . . . 7 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → (𝑦 ∈ 𝐶 → 𝑦 ∈ (𝐵 ∖ {𝑥})))
23	22	ssrdv 3988	. . . . . 6 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → 𝐶 ⊆ (𝐵 ∖ {𝑥}))
24		lbsind2.n	. . . . . . 7 ⊢ 𝑁 = (LSpan‘𝑊)
25	4, 24	lspss 20875	. . . . . 6 ⊢ ((𝑊 ∈ LMod ∧ (𝐵 ∖ {𝑥}) ⊆ 𝑉 ∧ 𝐶 ⊆ (𝐵 ∖ {𝑥})) → (𝑁‘𝐶) ⊆ (𝑁‘(𝐵 ∖ {𝑥})))
26	10, 11, 23, 25	syl3anc 1368	. . . . 5 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → (𝑁‘𝐶) ⊆ (𝑁‘(𝐵 ∖ {𝑥})))
27		simpl1r 1222	. . . . . 6 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → 1 ≠ 0 )
28		lbsind2.f	. . . . . . 7 ⊢ 𝐹 = (Scalar‘𝑊)
29		lbsind2.o	. . . . . . 7 ⊢ 1 = (1_r‘𝐹)
30		lbsind2.z	. . . . . . 7 ⊢ 0 = (0_g‘𝐹)
31	5, 24, 28, 29, 30	lbsind2 20973	. . . . . 6 ⊢ (((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝑥 ∈ 𝐵) → ¬ 𝑥 ∈ (𝑁‘(𝐵 ∖ {𝑥})))
32	10, 27, 3, 8, 31	syl211anc 1373	. . . . 5 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → ¬ 𝑥 ∈ (𝑁‘(𝐵 ∖ {𝑥})))
33	26, 32	ssneldd 3985	. . . 4 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → ¬ 𝑥 ∈ (𝑁‘𝐶))
34		nelne1 3036	. . . 4 ⊢ ((𝑥 ∈ 𝑉 ∧ ¬ 𝑥 ∈ (𝑁‘𝐶)) → 𝑉 ≠ (𝑁‘𝐶))
35	9, 33, 34	syl2anc 582	. . 3 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → 𝑉 ≠ (𝑁‘𝐶))
36	35	necomd 2993	. 2 ⊢ ((((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) ∧ (𝑥 ∈ 𝐵 ∧ ¬ 𝑥 ∈ 𝐶)) → (𝑁‘𝐶) ≠ 𝑉)
37	2, 36	exlimddv 1930	1 ⊢ (((𝑊 ∈ LMod ∧ 1 ≠ 0 ) ∧ 𝐵 ∈ 𝐽 ∧ 𝐶 ⊊ 𝐵) → (𝑁‘𝐶) ≠ 𝑉)

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ∧ wa 394 ∧ w3a 1084 = wceq 1533 ∃wex 1773 ∈ wcel 2098 ≠ wne 2937 ∖ cdif 3946 ⊆ wss 3949 ⊊ wpss 3950 {csn 4632 ‘cfv 6553 Basecbs 17187 Scalarcsca 17243 0_gc0g 17428 1_rcur 20128 LModclmod 20750 LSpanclspn 20862 LBasisclbs 20966

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2166 ax-ext 2699 ax-rep 5289 ax-sep 5303 ax-nul 5310 ax-pow 5369 ax-pr 5433 ax-un 7746 ax-cnex 11202 ax-resscn 11203 ax-1cn 11204 ax-icn 11205 ax-addcl 11206 ax-addrcl 11207 ax-mulcl 11208 ax-mulrcl 11209 ax-mulcom 11210 ax-addass 11211 ax-mulass 11212 ax-distr 11213 ax-i2m1 11214 ax-1ne0 11215 ax-1rid 11216 ax-rnegex 11217 ax-rrecex 11218 ax-cnre 11219 ax-pre-lttri 11220 ax-pre-lttrn 11221 ax-pre-ltadd 11222 ax-pre-mulgt0 11223

This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2529 df-eu 2558 df-clab 2706 df-cleq 2720 df-clel 2806 df-nfc 2881 df-ne 2938 df-nel 3044 df-ral 3059 df-rex 3068 df-rmo 3374 df-reu 3375 df-rab 3431 df-v 3475 df-sbc 3779 df-csb 3895 df-dif 3952 df-un 3954 df-in 3956 df-ss 3966 df-pss 3968 df-nul 4327 df-if 4533 df-pw 4608 df-sn 4633 df-pr 4635 df-op 4639 df-uni 4913 df-int 4954 df-iun 5002 df-br 5153 df-opab 5215 df-mpt 5236 df-tr 5270 df-id 5580 df-eprel 5586 df-po 5594 df-so 5595 df-fr 5637 df-we 5639 df-xp 5688 df-rel 5689 df-cnv 5690 df-co 5691 df-dm 5692 df-rn 5693 df-res 5694 df-ima 5695 df-pred 6310 df-ord 6377 df-on 6378 df-lim 6379 df-suc 6380 df-iota 6505 df-fun 6555 df-fn 6556 df-f 6557 df-f1 6558 df-fo 6559 df-f1o 6560 df-fv 6561 df-riota 7382 df-ov 7429 df-oprab 7430 df-mpo 7431 df-om 7877 df-2nd 8000 df-frecs 8293 df-wrecs 8324 df-recs 8398 df-rdg 8437 df-er 8731 df-en 8971 df-dom 8972 df-sdom 8973 df-pnf 11288 df-mnf 11289 df-xr 11290 df-ltxr 11291 df-le 11292 df-sub 11484 df-neg 11485 df-nn 12251 df-2 12313 df-sets 17140 df-slot 17158 df-ndx 17170 df-base 17188 df-plusg 17253 df-0g 17430 df-mgm 18607 df-sgrp 18686 df-mnd 18702 df-grp 18900 df-mgp 20082 df-ur 20129 df-ring 20182 df-lmod 20752 df-lss 20823 df-lsp 20863 df-lbs 20967

This theorem is referenced by: islbs3 21050

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