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Mirrors > Home > MPE Home > Th. List > islinds4 | Structured version Visualization version GIF version |
Description: A set is independent in a vector space iff it is a subset of some basis. This is an axiom of choice equivalent. (Contributed by Stefan O'Rear, 24-Feb-2015.) |
Ref | Expression |
---|---|
islinds4.j | ⊢ 𝐽 = (LBasis‘𝑊) |
Ref | Expression |
---|---|
islinds4 | ⊢ (𝑊 ∈ LVec → (𝑌 ∈ (LIndS‘𝑊) ↔ ∃𝑏 ∈ 𝐽 𝑌 ⊆ 𝑏)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpl 482 | . . . 4 ⊢ ((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) → 𝑊 ∈ LVec) | |
2 | eqid 2738 | . . . . . 6 ⊢ (Base‘𝑊) = (Base‘𝑊) | |
3 | 2 | linds1 20927 | . . . . 5 ⊢ (𝑌 ∈ (LIndS‘𝑊) → 𝑌 ⊆ (Base‘𝑊)) |
4 | 3 | adantl 481 | . . . 4 ⊢ ((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) → 𝑌 ⊆ (Base‘𝑊)) |
5 | lveclmod 20283 | . . . . . . 7 ⊢ (𝑊 ∈ LVec → 𝑊 ∈ LMod) | |
6 | 5 | ad2antrr 722 | . . . . . 6 ⊢ (((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) ∧ 𝑥 ∈ 𝑌) → 𝑊 ∈ LMod) |
7 | eqid 2738 | . . . . . . . . 9 ⊢ (Scalar‘𝑊) = (Scalar‘𝑊) | |
8 | 7 | lvecdrng 20282 | . . . . . . . 8 ⊢ (𝑊 ∈ LVec → (Scalar‘𝑊) ∈ DivRing) |
9 | drngnzr 20446 | . . . . . . . 8 ⊢ ((Scalar‘𝑊) ∈ DivRing → (Scalar‘𝑊) ∈ NzRing) | |
10 | 8, 9 | syl 17 | . . . . . . 7 ⊢ (𝑊 ∈ LVec → (Scalar‘𝑊) ∈ NzRing) |
11 | 10 | ad2antrr 722 | . . . . . 6 ⊢ (((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) ∧ 𝑥 ∈ 𝑌) → (Scalar‘𝑊) ∈ NzRing) |
12 | simplr 765 | . . . . . 6 ⊢ (((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) ∧ 𝑥 ∈ 𝑌) → 𝑌 ∈ (LIndS‘𝑊)) | |
13 | simpr 484 | . . . . . 6 ⊢ (((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) ∧ 𝑥 ∈ 𝑌) → 𝑥 ∈ 𝑌) | |
14 | eqid 2738 | . . . . . . 7 ⊢ (LSpan‘𝑊) = (LSpan‘𝑊) | |
15 | 14, 7 | lindsind2 20936 | . . . . . 6 ⊢ (((𝑊 ∈ LMod ∧ (Scalar‘𝑊) ∈ NzRing) ∧ 𝑌 ∈ (LIndS‘𝑊) ∧ 𝑥 ∈ 𝑌) → ¬ 𝑥 ∈ ((LSpan‘𝑊)‘(𝑌 ∖ {𝑥}))) |
16 | 6, 11, 12, 13, 15 | syl211anc 1374 | . . . . 5 ⊢ (((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) ∧ 𝑥 ∈ 𝑌) → ¬ 𝑥 ∈ ((LSpan‘𝑊)‘(𝑌 ∖ {𝑥}))) |
17 | 16 | ralrimiva 3107 | . . . 4 ⊢ ((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) → ∀𝑥 ∈ 𝑌 ¬ 𝑥 ∈ ((LSpan‘𝑊)‘(𝑌 ∖ {𝑥}))) |
18 | islinds4.j | . . . . 5 ⊢ 𝐽 = (LBasis‘𝑊) | |
19 | 18, 2, 14 | lbsext 20340 | . . . 4 ⊢ ((𝑊 ∈ LVec ∧ 𝑌 ⊆ (Base‘𝑊) ∧ ∀𝑥 ∈ 𝑌 ¬ 𝑥 ∈ ((LSpan‘𝑊)‘(𝑌 ∖ {𝑥}))) → ∃𝑏 ∈ 𝐽 𝑌 ⊆ 𝑏) |
20 | 1, 4, 17, 19 | syl3anc 1369 | . . 3 ⊢ ((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) → ∃𝑏 ∈ 𝐽 𝑌 ⊆ 𝑏) |
21 | 20 | ex 412 | . 2 ⊢ (𝑊 ∈ LVec → (𝑌 ∈ (LIndS‘𝑊) → ∃𝑏 ∈ 𝐽 𝑌 ⊆ 𝑏)) |
22 | 5 | ad2antrr 722 | . . . 4 ⊢ (((𝑊 ∈ LVec ∧ 𝑏 ∈ 𝐽) ∧ 𝑌 ⊆ 𝑏) → 𝑊 ∈ LMod) |
23 | 18 | lbslinds 20950 | . . . . . 6 ⊢ 𝐽 ⊆ (LIndS‘𝑊) |
24 | 23 | sseli 3913 | . . . . 5 ⊢ (𝑏 ∈ 𝐽 → 𝑏 ∈ (LIndS‘𝑊)) |
25 | 24 | ad2antlr 723 | . . . 4 ⊢ (((𝑊 ∈ LVec ∧ 𝑏 ∈ 𝐽) ∧ 𝑌 ⊆ 𝑏) → 𝑏 ∈ (LIndS‘𝑊)) |
26 | simpr 484 | . . . 4 ⊢ (((𝑊 ∈ LVec ∧ 𝑏 ∈ 𝐽) ∧ 𝑌 ⊆ 𝑏) → 𝑌 ⊆ 𝑏) | |
27 | lindsss 20941 | . . . 4 ⊢ ((𝑊 ∈ LMod ∧ 𝑏 ∈ (LIndS‘𝑊) ∧ 𝑌 ⊆ 𝑏) → 𝑌 ∈ (LIndS‘𝑊)) | |
28 | 22, 25, 26, 27 | syl3anc 1369 | . . 3 ⊢ (((𝑊 ∈ LVec ∧ 𝑏 ∈ 𝐽) ∧ 𝑌 ⊆ 𝑏) → 𝑌 ∈ (LIndS‘𝑊)) |
29 | 28 | rexlimdva2 3215 | . 2 ⊢ (𝑊 ∈ LVec → (∃𝑏 ∈ 𝐽 𝑌 ⊆ 𝑏 → 𝑌 ∈ (LIndS‘𝑊))) |
30 | 21, 29 | impbid 211 | 1 ⊢ (𝑊 ∈ LVec → (𝑌 ∈ (LIndS‘𝑊) ↔ ∃𝑏 ∈ 𝐽 𝑌 ⊆ 𝑏)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 395 = wceq 1539 ∈ wcel 2108 ∀wral 3063 ∃wrex 3064 ∖ cdif 3880 ⊆ wss 3883 {csn 4558 ‘cfv 6418 Basecbs 16840 Scalarcsca 16891 DivRingcdr 19906 LModclmod 20038 LSpanclspn 20148 LBasisclbs 20251 LVecclvec 20279 NzRingcnzr 20441 LIndSclinds 20922 |
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-rep 5205 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-ac2 10150 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-int 4877 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-se 5536 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-isom 6427 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-rpss 7554 df-om 7688 df-1st 7804 df-2nd 7805 df-tpos 8013 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-1o 8267 df-oadd 8271 df-er 8456 df-en 8692 df-dom 8693 df-sdom 8694 df-fin 8695 df-dju 9590 df-card 9628 df-ac 9803 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-3 11967 df-sets 16793 df-slot 16811 df-ndx 16823 df-base 16841 df-ress 16868 df-plusg 16901 df-mulr 16902 df-0g 17069 df-mgm 18241 df-sgrp 18290 df-mnd 18301 df-grp 18495 df-minusg 18496 df-sbg 18497 df-cmn 19303 df-abl 19304 df-mgp 19636 df-ur 19653 df-ring 19700 df-oppr 19777 df-dvdsr 19798 df-unit 19799 df-invr 19829 df-drng 19908 df-lmod 20040 df-lss 20109 df-lsp 20149 df-lbs 20252 df-lvec 20280 df-nzr 20442 df-lindf 20923 df-linds 20924 |
This theorem is referenced by: lssdimle 31593 dimkerim 31610 |
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