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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. (AC 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 472 | . . . 4 ⊢ ((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) → 𝑊 ∈ LVec) | |
2 | eqid 2610 | . . . . . 6 ⊢ (Base‘𝑊) = (Base‘𝑊) | |
3 | 2 | linds1 19968 | . . . . 5 ⊢ (𝑌 ∈ (LIndS‘𝑊) → 𝑌 ⊆ (Base‘𝑊)) |
4 | 3 | adantl 481 | . . . 4 ⊢ ((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) → 𝑌 ⊆ (Base‘𝑊)) |
5 | lveclmod 18927 | . . . . . . 7 ⊢ (𝑊 ∈ LVec → 𝑊 ∈ LMod) | |
6 | 5 | ad2antrr 758 | . . . . . 6 ⊢ (((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) ∧ 𝑥 ∈ 𝑌) → 𝑊 ∈ LMod) |
7 | eqid 2610 | . . . . . . . . 9 ⊢ (Scalar‘𝑊) = (Scalar‘𝑊) | |
8 | 7 | lvecdrng 18926 | . . . . . . . 8 ⊢ (𝑊 ∈ LVec → (Scalar‘𝑊) ∈ DivRing) |
9 | drngnzr 19083 | . . . . . . . 8 ⊢ ((Scalar‘𝑊) ∈ DivRing → (Scalar‘𝑊) ∈ NzRing) | |
10 | 8, 9 | syl 17 | . . . . . . 7 ⊢ (𝑊 ∈ LVec → (Scalar‘𝑊) ∈ NzRing) |
11 | 10 | ad2antrr 758 | . . . . . 6 ⊢ (((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) ∧ 𝑥 ∈ 𝑌) → (Scalar‘𝑊) ∈ NzRing) |
12 | simplr 788 | . . . . . 6 ⊢ (((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) ∧ 𝑥 ∈ 𝑌) → 𝑌 ∈ (LIndS‘𝑊)) | |
13 | simpr 476 | . . . . . 6 ⊢ (((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) ∧ 𝑥 ∈ 𝑌) → 𝑥 ∈ 𝑌) | |
14 | eqid 2610 | . . . . . . 7 ⊢ (LSpan‘𝑊) = (LSpan‘𝑊) | |
15 | 14, 7 | lindsind2 19977 | . . . . . 6 ⊢ (((𝑊 ∈ LMod ∧ (Scalar‘𝑊) ∈ NzRing) ∧ 𝑌 ∈ (LIndS‘𝑊) ∧ 𝑥 ∈ 𝑌) → ¬ 𝑥 ∈ ((LSpan‘𝑊)‘(𝑌 ∖ {𝑥}))) |
16 | 6, 11, 12, 13, 15 | syl211anc 1324 | . . . . 5 ⊢ (((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) ∧ 𝑥 ∈ 𝑌) → ¬ 𝑥 ∈ ((LSpan‘𝑊)‘(𝑌 ∖ {𝑥}))) |
17 | 16 | ralrimiva 2949 | . . . 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 18984 | . . . 4 ⊢ ((𝑊 ∈ LVec ∧ 𝑌 ⊆ (Base‘𝑊) ∧ ∀𝑥 ∈ 𝑌 ¬ 𝑥 ∈ ((LSpan‘𝑊)‘(𝑌 ∖ {𝑥}))) → ∃𝑏 ∈ 𝐽 𝑌 ⊆ 𝑏) |
20 | 1, 4, 17, 19 | syl3anc 1318 | . . 3 ⊢ ((𝑊 ∈ LVec ∧ 𝑌 ∈ (LIndS‘𝑊)) → ∃𝑏 ∈ 𝐽 𝑌 ⊆ 𝑏) |
21 | 20 | ex 449 | . 2 ⊢ (𝑊 ∈ LVec → (𝑌 ∈ (LIndS‘𝑊) → ∃𝑏 ∈ 𝐽 𝑌 ⊆ 𝑏)) |
22 | 5 | ad2antrr 758 | . . . . 5 ⊢ (((𝑊 ∈ LVec ∧ 𝑏 ∈ 𝐽) ∧ 𝑌 ⊆ 𝑏) → 𝑊 ∈ LMod) |
23 | 18 | lbslinds 19991 | . . . . . . 7 ⊢ 𝐽 ⊆ (LIndS‘𝑊) |
24 | 23 | sseli 3564 | . . . . . 6 ⊢ (𝑏 ∈ 𝐽 → 𝑏 ∈ (LIndS‘𝑊)) |
25 | 24 | ad2antlr 759 | . . . . 5 ⊢ (((𝑊 ∈ LVec ∧ 𝑏 ∈ 𝐽) ∧ 𝑌 ⊆ 𝑏) → 𝑏 ∈ (LIndS‘𝑊)) |
26 | simpr 476 | . . . . 5 ⊢ (((𝑊 ∈ LVec ∧ 𝑏 ∈ 𝐽) ∧ 𝑌 ⊆ 𝑏) → 𝑌 ⊆ 𝑏) | |
27 | lindsss 19982 | . . . . 5 ⊢ ((𝑊 ∈ LMod ∧ 𝑏 ∈ (LIndS‘𝑊) ∧ 𝑌 ⊆ 𝑏) → 𝑌 ∈ (LIndS‘𝑊)) | |
28 | 22, 25, 26, 27 | syl3anc 1318 | . . . 4 ⊢ (((𝑊 ∈ LVec ∧ 𝑏 ∈ 𝐽) ∧ 𝑌 ⊆ 𝑏) → 𝑌 ∈ (LIndS‘𝑊)) |
29 | 28 | ex 449 | . . 3 ⊢ ((𝑊 ∈ LVec ∧ 𝑏 ∈ 𝐽) → (𝑌 ⊆ 𝑏 → 𝑌 ∈ (LIndS‘𝑊))) |
30 | 29 | rexlimdva 3013 | . 2 ⊢ (𝑊 ∈ LVec → (∃𝑏 ∈ 𝐽 𝑌 ⊆ 𝑏 → 𝑌 ∈ (LIndS‘𝑊))) |
31 | 21, 30 | impbid 201 | 1 ⊢ (𝑊 ∈ LVec → (𝑌 ∈ (LIndS‘𝑊) ↔ ∃𝑏 ∈ 𝐽 𝑌 ⊆ 𝑏)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 195 ∧ wa 383 = wceq 1475 ∈ wcel 1977 ∀wral 2896 ∃wrex 2897 ∖ cdif 3537 ⊆ wss 3540 {csn 4125 ‘cfv 5804 Basecbs 15695 Scalarcsca 15771 DivRingcdr 18570 LModclmod 18686 LSpanclspn 18792 LBasisclbs 18895 LVecclvec 18923 NzRingcnzr 19078 LIndSclinds 19963 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-rep 4699 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-ac2 9168 ax-cnex 9871 ax-resscn 9872 ax-1cn 9873 ax-icn 9874 ax-addcl 9875 ax-addrcl 9876 ax-mulcl 9877 ax-mulrcl 9878 ax-mulcom 9879 ax-addass 9880 ax-mulass 9881 ax-distr 9882 ax-i2m1 9883 ax-1ne0 9884 ax-1rid 9885 ax-rnegex 9886 ax-rrecex 9887 ax-cnre 9888 ax-pre-lttri 9889 ax-pre-lttrn 9890 ax-pre-ltadd 9891 ax-pre-mulgt0 9892 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-nel 2783 df-ral 2901 df-rex 2902 df-reu 2903 df-rmo 2904 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-pss 3556 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-tp 4130 df-op 4132 df-uni 4373 df-int 4411 df-iun 4457 df-br 4584 df-opab 4644 df-mpt 4645 df-tr 4681 df-eprel 4949 df-id 4953 df-po 4959 df-so 4960 df-fr 4997 df-se 4998 df-we 4999 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-pred 5597 df-ord 5643 df-on 5644 df-lim 5645 df-suc 5646 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-isom 5813 df-riota 6511 df-ov 6552 df-oprab 6553 df-mpt2 6554 df-rpss 6835 df-om 6958 df-1st 7059 df-2nd 7060 df-tpos 7239 df-wrecs 7294 df-recs 7355 df-rdg 7393 df-1o 7447 df-oadd 7451 df-er 7629 df-en 7842 df-dom 7843 df-sdom 7844 df-fin 7845 df-card 8648 df-ac 8822 df-cda 8873 df-pnf 9955 df-mnf 9956 df-xr 9957 df-ltxr 9958 df-le 9959 df-sub 10147 df-neg 10148 df-nn 10898 df-2 10956 df-3 10957 df-ndx 15698 df-slot 15699 df-base 15700 df-sets 15701 df-ress 15702 df-plusg 15781 df-mulr 15782 df-0g 15925 df-mgm 17065 df-sgrp 17107 df-mnd 17118 df-grp 17248 df-minusg 17249 df-sbg 17250 df-cmn 18018 df-abl 18019 df-mgp 18313 df-ur 18325 df-ring 18372 df-oppr 18446 df-dvdsr 18464 df-unit 18465 df-invr 18495 df-drng 18572 df-lmod 18688 df-lss 18754 df-lsp 18793 df-lbs 18896 df-lvec 18924 df-nzr 19079 df-lindf 19964 df-linds 19965 |
This theorem is referenced by: (None) |
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