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Theorem lvecdim 20916

Description: The dimension theorem for vector spaces: any two bases of the same vector space are equinumerous. Proven by using lssacsex 20903 and lbsacsbs 20915 to show that being a basis for a vector space is equivalent to being a basis for the associated algebraic closure system, and then using acsexdimd 18517. (Contributed by David Moews, 1-May-2017.)

**Hypothesis**
Ref	Expression
lvecdim.1	⊢ 𝐽 = (LBasis‘𝑊)

**Assertion**
Ref	Expression
lvecdim	⊢ ((𝑊 ∈ LVec ∧ 𝑆 ∈ 𝐽 ∧ 𝑇 ∈ 𝐽) → 𝑆 ≈ 𝑇)

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

Step	Hyp	Ref	Expression
1		eqid 2731	. . . . 5 ⊢ (LSubSp‘𝑊) = (LSubSp‘𝑊)
2		eqid 2731	. . . . 5 ⊢ (mrCls‘(LSubSp‘𝑊)) = (mrCls‘(LSubSp‘𝑊))
3		eqid 2731	. . . . 5 ⊢ (Base‘𝑊) = (Base‘𝑊)
4	1, 2, 3	lssacsex 20903	. . . 4 ⊢ (𝑊 ∈ LVec → ((LSubSp‘𝑊) ∈ (ACS‘(Base‘𝑊)) ∧ ∀𝑥 ∈ 𝒫 (Base‘𝑊)∀𝑦 ∈ (Base‘𝑊)∀𝑧 ∈ (((mrCls‘(LSubSp‘𝑊))‘(𝑥 ∪ {𝑦})) ∖ ((mrCls‘(LSubSp‘𝑊))‘𝑥))𝑦 ∈ ((mrCls‘(LSubSp‘𝑊))‘(𝑥 ∪ {𝑧}))))
5	4	3ad2ant1 1132	. . 3 ⊢ ((𝑊 ∈ LVec ∧ 𝑆 ∈ 𝐽 ∧ 𝑇 ∈ 𝐽) → ((LSubSp‘𝑊) ∈ (ACS‘(Base‘𝑊)) ∧ ∀𝑥 ∈ 𝒫 (Base‘𝑊)∀𝑦 ∈ (Base‘𝑊)∀𝑧 ∈ (((mrCls‘(LSubSp‘𝑊))‘(𝑥 ∪ {𝑦})) ∖ ((mrCls‘(LSubSp‘𝑊))‘𝑥))𝑦 ∈ ((mrCls‘(LSubSp‘𝑊))‘(𝑥 ∪ {𝑧}))))
6	5	simpld 494	. 2 ⊢ ((𝑊 ∈ LVec ∧ 𝑆 ∈ 𝐽 ∧ 𝑇 ∈ 𝐽) → (LSubSp‘𝑊) ∈ (ACS‘(Base‘𝑊)))
7		eqid 2731	. 2 ⊢ (mrInd‘(LSubSp‘𝑊)) = (mrInd‘(LSubSp‘𝑊))
8	5	simprd 495	. 2 ⊢ ((𝑊 ∈ LVec ∧ 𝑆 ∈ 𝐽 ∧ 𝑇 ∈ 𝐽) → ∀𝑥 ∈ 𝒫 (Base‘𝑊)∀𝑦 ∈ (Base‘𝑊)∀𝑧 ∈ (((mrCls‘(LSubSp‘𝑊))‘(𝑥 ∪ {𝑦})) ∖ ((mrCls‘(LSubSp‘𝑊))‘𝑥))𝑦 ∈ ((mrCls‘(LSubSp‘𝑊))‘(𝑥 ∪ {𝑧})))
9		simp2 1136	. . . 4 ⊢ ((𝑊 ∈ LVec ∧ 𝑆 ∈ 𝐽 ∧ 𝑇 ∈ 𝐽) → 𝑆 ∈ 𝐽)
10		lvecdim.1	. . . . . 6 ⊢ 𝐽 = (LBasis‘𝑊)
11	1, 2, 3, 7, 10	lbsacsbs 20915	. . . . 5 ⊢ (𝑊 ∈ LVec → (𝑆 ∈ 𝐽 ↔ (𝑆 ∈ (mrInd‘(LSubSp‘𝑊)) ∧ ((mrCls‘(LSubSp‘𝑊))‘𝑆) = (Base‘𝑊))))
12	11	3ad2ant1 1132	. . . 4 ⊢ ((𝑊 ∈ LVec ∧ 𝑆 ∈ 𝐽 ∧ 𝑇 ∈ 𝐽) → (𝑆 ∈ 𝐽 ↔ (𝑆 ∈ (mrInd‘(LSubSp‘𝑊)) ∧ ((mrCls‘(LSubSp‘𝑊))‘𝑆) = (Base‘𝑊))))
13	9, 12	mpbid 231	. . 3 ⊢ ((𝑊 ∈ LVec ∧ 𝑆 ∈ 𝐽 ∧ 𝑇 ∈ 𝐽) → (𝑆 ∈ (mrInd‘(LSubSp‘𝑊)) ∧ ((mrCls‘(LSubSp‘𝑊))‘𝑆) = (Base‘𝑊)))
14	13	simpld 494	. 2 ⊢ ((𝑊 ∈ LVec ∧ 𝑆 ∈ 𝐽 ∧ 𝑇 ∈ 𝐽) → 𝑆 ∈ (mrInd‘(LSubSp‘𝑊)))
15		simp3 1137	. . . 4 ⊢ ((𝑊 ∈ LVec ∧ 𝑆 ∈ 𝐽 ∧ 𝑇 ∈ 𝐽) → 𝑇 ∈ 𝐽)
16	1, 2, 3, 7, 10	lbsacsbs 20915	. . . . 5 ⊢ (𝑊 ∈ LVec → (𝑇 ∈ 𝐽 ↔ (𝑇 ∈ (mrInd‘(LSubSp‘𝑊)) ∧ ((mrCls‘(LSubSp‘𝑊))‘𝑇) = (Base‘𝑊))))
17	16	3ad2ant1 1132	. . . 4 ⊢ ((𝑊 ∈ LVec ∧ 𝑆 ∈ 𝐽 ∧ 𝑇 ∈ 𝐽) → (𝑇 ∈ 𝐽 ↔ (𝑇 ∈ (mrInd‘(LSubSp‘𝑊)) ∧ ((mrCls‘(LSubSp‘𝑊))‘𝑇) = (Base‘𝑊))))
18	15, 17	mpbid 231	. . 3 ⊢ ((𝑊 ∈ LVec ∧ 𝑆 ∈ 𝐽 ∧ 𝑇 ∈ 𝐽) → (𝑇 ∈ (mrInd‘(LSubSp‘𝑊)) ∧ ((mrCls‘(LSubSp‘𝑊))‘𝑇) = (Base‘𝑊)))
19	18	simpld 494	. 2 ⊢ ((𝑊 ∈ LVec ∧ 𝑆 ∈ 𝐽 ∧ 𝑇 ∈ 𝐽) → 𝑇 ∈ (mrInd‘(LSubSp‘𝑊)))
20	13	simprd 495	. . 3 ⊢ ((𝑊 ∈ LVec ∧ 𝑆 ∈ 𝐽 ∧ 𝑇 ∈ 𝐽) → ((mrCls‘(LSubSp‘𝑊))‘𝑆) = (Base‘𝑊))
21	18	simprd 495	. . 3 ⊢ ((𝑊 ∈ LVec ∧ 𝑆 ∈ 𝐽 ∧ 𝑇 ∈ 𝐽) → ((mrCls‘(LSubSp‘𝑊))‘𝑇) = (Base‘𝑊))
22	20, 21	eqtr4d 2774	. 2 ⊢ ((𝑊 ∈ LVec ∧ 𝑆 ∈ 𝐽 ∧ 𝑇 ∈ 𝐽) → ((mrCls‘(LSubSp‘𝑊))‘𝑆) = ((mrCls‘(LSubSp‘𝑊))‘𝑇))
23	6, 2, 7, 8, 14, 19, 22	acsexdimd 18517	1 ⊢ ((𝑊 ∈ LVec ∧ 𝑆 ∈ 𝐽 ∧ 𝑇 ∈ 𝐽) → 𝑆 ≈ 𝑇)

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 ∧ w3a 1086 = wceq 1540 ∈ wcel 2105 ∀wral 3060 ∖ cdif 3945 ∪ cun 3946 𝒫 cpw 4602 {csn 4628 class class class wbr 5148 ‘cfv 6543 ≈ cen 8939 Basecbs 17149 mrClscmrc 17532 mrIndcmri 17533 ACScacs 17534 LSubSpclss 20687 LBasisclbs 20830 LVecclvec 20858

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1912 ax-6 1970 ax-7 2010 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2153 ax-12 2170 ax-ext 2702 ax-rep 5285 ax-sep 5299 ax-nul 5306 ax-pow 5363 ax-pr 5427 ax-un 7728 ax-reg 9590 ax-inf2 9639 ax-ac2 10461 ax-cnex 11169 ax-resscn 11170 ax-1cn 11171 ax-icn 11172 ax-addcl 11173 ax-addrcl 11174 ax-mulcl 11175 ax-mulrcl 11176 ax-mulcom 11177 ax-addass 11178 ax-mulass 11179 ax-distr 11180 ax-i2m1 11181 ax-1ne0 11182 ax-1rid 11183 ax-rnegex 11184 ax-rrecex 11185 ax-cnre 11186 ax-pre-lttri 11187 ax-pre-lttrn 11188 ax-pre-ltadd 11189 ax-pre-mulgt0 11190

This theorem depends on definitions: df-bi 206 df-an 396 df-or 845 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1781 df-nf 1785 df-sb 2067 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 3778 df-csb 3894 df-dif 3951 df-un 3953 df-in 3955 df-ss 3965 df-pss 3967 df-nul 4323 df-if 4529 df-pw 4604 df-sn 4629 df-pr 4631 df-op 4635 df-uni 4909 df-int 4951 df-iun 4999 df-iin 5000 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5574 df-eprel 5580 df-po 5588 df-so 5589 df-fr 5631 df-se 5632 df-we 5633 df-xp 5682 df-rel 5683 df-cnv 5684 df-co 5685 df-dm 5686 df-rn 5687 df-res 5688 df-ima 5689 df-pred 6300 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6495 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-isom 6552 df-riota 7368 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7859 df-1st 7978 df-2nd 7979 df-tpos 8214 df-frecs 8269 df-wrecs 8300 df-recs 8374 df-rdg 8413 df-1o 8469 df-er 8706 df-map 8825 df-en 8943 df-dom 8944 df-sdom 8945 df-fin 8946 df-oi 9508 df-r1 9762 df-rank 9763 df-card 9937 df-acn 9940 df-ac 10114 df-pnf 11255 df-mnf 11256 df-xr 11257 df-ltxr 11258 df-le 11259 df-sub 11451 df-neg 11452 df-nn 12218 df-2 12280 df-3 12281 df-4 12282 df-5 12283 df-6 12284 df-7 12285 df-8 12286 df-9 12287 df-n0 12478 df-z 12564 df-dec 12683 df-uz 12828 df-fz 13490 df-struct 17085 df-sets 17102 df-slot 17120 df-ndx 17132 df-base 17150 df-ress 17179 df-plusg 17215 df-mulr 17216 df-tset 17221 df-ple 17222 df-ocomp 17223 df-0g 17392 df-mre 17535 df-mrc 17536 df-mri 17537 df-acs 17538 df-proset 18253 df-drs 18254 df-poset 18271 df-ipo 18486 df-mgm 18566 df-sgrp 18645 df-mnd 18661 df-submnd 18707 df-grp 18859 df-minusg 18860 df-sbg 18861 df-subg 19040 df-cmn 19692 df-abl 19693 df-mgp 20030 df-rng 20048 df-ur 20077 df-ring 20130 df-oppr 20226 df-dvdsr 20249 df-unit 20250 df-invr 20280 df-drng 20503 df-lmod 20617 df-lss 20688 df-lsp 20728 df-lbs 20831 df-lvec 20859

This theorem is referenced by: dimval 32974

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