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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 486 | . . . 4 ⊢ ((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) → 𝑊 ∈ LVec) | |
2 | eqid 2737 | . . . . . 6 ⊢ (Base‘𝑊) = (Base‘𝑊) | |
3 | 2 | linds1 20772 | . . . . 5 ⊢ (𝑌 ∈ (LIndS‘𝑊) → 𝑌 ⊆ (Base‘𝑊)) |
4 | 3 | adantl 485 | . . . 4 ⊢ ((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) → 𝑌 ⊆ (Base‘𝑊)) |
5 | lveclmod 20143 | . . . . . . 7 ⊢ (𝑊 ∈ LVec → 𝑊 ∈ LMod) | |
6 | 5 | ad2antrr 726 | . . . . . 6 ⊢ (((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) ∧ 𝑥 ∈ 𝑌) → 𝑊 ∈ LMod) |
7 | eqid 2737 | . . . . . . . . 9 ⊢ (Scalar‘𝑊) = (Scalar‘𝑊) | |
8 | 7 | lvecdrng 20142 | . . . . . . . 8 ⊢ (𝑊 ∈ LVec → (Scalar‘𝑊) ∈ DivRing) |
9 | drngnzr 20300 | . . . . . . . 8 ⊢ ((Scalar‘𝑊) ∈ DivRing → (Scalar‘𝑊) ∈ NzRing) | |
10 | 8, 9 | syl 17 | . . . . . . 7 ⊢ (𝑊 ∈ LVec → (Scalar‘𝑊) ∈ NzRing) |
11 | 10 | ad2antrr 726 | . . . . . 6 ⊢ (((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) ∧ 𝑥 ∈ 𝑌) → (Scalar‘𝑊) ∈ NzRing) |
12 | simplr 769 | . . . . . 6 ⊢ (((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) ∧ 𝑥 ∈ 𝑌) → 𝑌 ∈ (LIndS‘𝑊)) | |
13 | simpr 488 | . . . . . 6 ⊢ (((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) ∧ 𝑥 ∈ 𝑌) → 𝑥 ∈ 𝑌) | |
14 | eqid 2737 | . . . . . . 7 ⊢ (LSpan‘𝑊) = (LSpan‘𝑊) | |
15 | 14, 7 | lindsind2 20781 | . . . . . 6 ⊢ (((𝑊 ∈ LMod ∧ (Scalar‘𝑊) ∈ NzRing) ∧ 𝑌 ∈ (LIndS‘𝑊) ∧ 𝑥 ∈ 𝑌) → ¬ 𝑥 ∈ ((LSpan‘𝑊)‘(𝑌 ∖ {𝑥}))) |
16 | 6, 11, 12, 13, 15 | syl211anc 1378 | . . . . 5 ⊢ (((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) ∧ 𝑥 ∈ 𝑌) → ¬ 𝑥 ∈ ((LSpan‘𝑊)‘(𝑌 ∖ {𝑥}))) |
17 | 16 | ralrimiva 3105 | . . . 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 20200 | . . . 4 ⊢ ((𝑊 ∈ LVec ∧ 𝑌 ⊆ (Base‘𝑊) ∧ ∀𝑥 ∈ 𝑌 ¬ 𝑥 ∈ ((LSpan‘𝑊)‘(𝑌 ∖ {𝑥}))) → ∃𝑏 ∈ 𝐽 𝑌 ⊆ 𝑏) |
20 | 1, 4, 17, 19 | syl3anc 1373 | . . 3 ⊢ ((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) → ∃𝑏 ∈ 𝐽 𝑌 ⊆ 𝑏) |
21 | 20 | ex 416 | . 2 ⊢ (𝑊 ∈ LVec → (𝑌 ∈ (LIndS‘𝑊) → ∃𝑏 ∈ 𝐽 𝑌 ⊆ 𝑏)) |
22 | 5 | ad2antrr 726 | . . . 4 ⊢ (((𝑊 ∈ LVec ∧ 𝑏 ∈ 𝐽) ∧ 𝑌 ⊆ 𝑏) → 𝑊 ∈ LMod) |
23 | 18 | lbslinds 20795 | . . . . . 6 ⊢ 𝐽 ⊆ (LIndS‘𝑊) |
24 | 23 | sseli 3896 | . . . . 5 ⊢ (𝑏 ∈ 𝐽 → 𝑏 ∈ (LIndS‘𝑊)) |
25 | 24 | ad2antlr 727 | . . . 4 ⊢ (((𝑊 ∈ LVec ∧ 𝑏 ∈ 𝐽) ∧ 𝑌 ⊆ 𝑏) → 𝑏 ∈ (LIndS‘𝑊)) |
26 | simpr 488 | . . . 4 ⊢ (((𝑊 ∈ LVec ∧ 𝑏 ∈ 𝐽) ∧ 𝑌 ⊆ 𝑏) → 𝑌 ⊆ 𝑏) | |
27 | lindsss 20786 | . . . 4 ⊢ ((𝑊 ∈ LMod ∧ 𝑏 ∈ (LIndS‘𝑊) ∧ 𝑌 ⊆ 𝑏) → 𝑌 ∈ (LIndS‘𝑊)) | |
28 | 22, 25, 26, 27 | syl3anc 1373 | . . 3 ⊢ (((𝑊 ∈ LVec ∧ 𝑏 ∈ 𝐽) ∧ 𝑌 ⊆ 𝑏) → 𝑌 ∈ (LIndS‘𝑊)) |
29 | 28 | rexlimdva2 3206 | . 2 ⊢ (𝑊 ∈ LVec → (∃𝑏 ∈ 𝐽 𝑌 ⊆ 𝑏 → 𝑌 ∈ (LIndS‘𝑊))) |
30 | 21, 29 | impbid 215 | 1 ⊢ (𝑊 ∈ LVec → (𝑌 ∈ (LIndS‘𝑊) ↔ ∃𝑏 ∈ 𝐽 𝑌 ⊆ 𝑏)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 209 ∧ wa 399 = wceq 1543 ∈ wcel 2110 ∀wral 3061 ∃wrex 3062 ∖ cdif 3863 ⊆ wss 3866 {csn 4541 ‘cfv 6380 Basecbs 16760 Scalarcsca 16805 DivRingcdr 19767 LModclmod 19899 LSpanclspn 20008 LBasisclbs 20111 LVecclvec 20139 NzRingcnzr 20295 LIndSclinds 20767 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2016 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2158 ax-12 2175 ax-ext 2708 ax-rep 5179 ax-sep 5192 ax-nul 5199 ax-pow 5258 ax-pr 5322 ax-un 7523 ax-ac2 10077 ax-cnex 10785 ax-resscn 10786 ax-1cn 10787 ax-icn 10788 ax-addcl 10789 ax-addrcl 10790 ax-mulcl 10791 ax-mulrcl 10792 ax-mulcom 10793 ax-addass 10794 ax-mulass 10795 ax-distr 10796 ax-i2m1 10797 ax-1ne0 10798 ax-1rid 10799 ax-rnegex 10800 ax-rrecex 10801 ax-cnre 10802 ax-pre-lttri 10803 ax-pre-lttrn 10804 ax-pre-ltadd 10805 ax-pre-mulgt0 10806 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2071 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2729 df-clel 2816 df-nfc 2886 df-ne 2941 df-nel 3047 df-ral 3066 df-rex 3067 df-reu 3068 df-rmo 3069 df-rab 3070 df-v 3410 df-sbc 3695 df-csb 3812 df-dif 3869 df-un 3871 df-in 3873 df-ss 3883 df-pss 3885 df-nul 4238 df-if 4440 df-pw 4515 df-sn 4542 df-pr 4544 df-tp 4546 df-op 4548 df-uni 4820 df-int 4860 df-iun 4906 df-br 5054 df-opab 5116 df-mpt 5136 df-tr 5162 df-id 5455 df-eprel 5460 df-po 5468 df-so 5469 df-fr 5509 df-se 5510 df-we 5511 df-xp 5557 df-rel 5558 df-cnv 5559 df-co 5560 df-dm 5561 df-rn 5562 df-res 5563 df-ima 5564 df-pred 6160 df-ord 6216 df-on 6217 df-lim 6218 df-suc 6219 df-iota 6338 df-fun 6382 df-fn 6383 df-f 6384 df-f1 6385 df-fo 6386 df-f1o 6387 df-fv 6388 df-isom 6389 df-riota 7170 df-ov 7216 df-oprab 7217 df-mpo 7218 df-rpss 7511 df-om 7645 df-1st 7761 df-2nd 7762 df-tpos 7968 df-wrecs 8047 df-recs 8108 df-rdg 8146 df-1o 8202 df-oadd 8206 df-er 8391 df-en 8627 df-dom 8628 df-sdom 8629 df-fin 8630 df-dju 9517 df-card 9555 df-ac 9730 df-pnf 10869 df-mnf 10870 df-xr 10871 df-ltxr 10872 df-le 10873 df-sub 11064 df-neg 11065 df-nn 11831 df-2 11893 df-3 11894 df-sets 16717 df-slot 16735 df-ndx 16745 df-base 16761 df-ress 16785 df-plusg 16815 df-mulr 16816 df-0g 16946 df-mgm 18114 df-sgrp 18163 df-mnd 18174 df-grp 18368 df-minusg 18369 df-sbg 18370 df-cmn 19172 df-abl 19173 df-mgp 19505 df-ur 19517 df-ring 19564 df-oppr 19641 df-dvdsr 19659 df-unit 19660 df-invr 19690 df-drng 19769 df-lmod 19901 df-lss 19969 df-lsp 20009 df-lbs 20112 df-lvec 20140 df-nzr 20296 df-lindf 20768 df-linds 20769 |
This theorem is referenced by: lssdimle 31405 dimkerim 31422 |
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