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| Mirrors > Home > MPE Home > Th. List > islinds3 | Structured version Visualization version GIF version | ||
| Description: A subset is linearly independent iff it is a basis of its span. (Contributed by Stefan O'Rear, 25-Feb-2015.) |
| Ref | Expression |
|---|---|
| islinds3.b | ⊢ 𝐵 = (Base‘𝑊) |
| islinds3.k | ⊢ 𝐾 = (LSpan‘𝑊) |
| islinds3.x | ⊢ 𝑋 = (𝑊 ↾s (𝐾‘𝑌)) |
| islinds3.j | ⊢ 𝐽 = (LBasis‘𝑋) |
| Ref | Expression |
|---|---|
| islinds3 | ⊢ (𝑊 ∈ LMod → (𝑌 ∈ (LIndS‘𝑊) ↔ 𝑌 ∈ 𝐽)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | islinds3.b | . . . . 5 ⊢ 𝐵 = (Base‘𝑊) | |
| 2 | 1 | linds1 22121 | . . . 4 ⊢ (𝑌 ∈ (LIndS‘𝑊) → 𝑌 ⊆ 𝐵) |
| 3 | 2 | a1i 11 | . . 3 ⊢ (𝑊 ∈ LMod → (𝑌 ∈ (LIndS‘𝑊) → 𝑌 ⊆ 𝐵)) |
| 4 | eqid 2760 | . . . . . . 7 ⊢ (Base‘𝑋) = (Base‘𝑋) | |
| 5 | 4 | linds1 22121 | . . . . . 6 ⊢ (𝑌 ∈ (LIndS‘𝑋) → 𝑌 ⊆ (Base‘𝑋)) |
| 6 | islinds3.x | . . . . . . 7 ⊢ 𝑋 = (𝑊 ↾s (𝐾‘𝑌)) | |
| 7 | 6, 1 | ressbasss 17422 | . . . . . 6 ⊢ (Base‘𝑋) ⊆ 𝐵 |
| 8 | 5, 7 | sstrdi 3920 | . . . . 5 ⊢ (𝑌 ∈ (LIndS‘𝑋) → 𝑌 ⊆ 𝐵) |
| 9 | 8 | adantr 486 | . . . 4 ⊢ ((𝑌 ∈ (LIndS‘𝑋) ∧ ((LSpan‘𝑋)‘𝑌) = (Base‘𝑋)) → 𝑌 ⊆ 𝐵) |
| 10 | 9 | a1i 11 | . . 3 ⊢ (𝑊 ∈ LMod → ((𝑌 ∈ (LIndS‘𝑋) ∧ ((LSpan‘𝑋)‘𝑌) = (Base‘𝑋)) → 𝑌 ⊆ 𝐵)) |
| 11 | simpl 488 | . . . . . . . 8 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → 𝑊 ∈ LMod) | |
| 12 | eqid 2760 | . . . . . . . . 9 ⊢ (LSubSp‘𝑊) = (LSubSp‘𝑊) | |
| 13 | islinds3.k | . . . . . . . . 9 ⊢ 𝐾 = (LSpan‘𝑊) | |
| 14 | 1, 12, 13 | lspcl 21256 | . . . . . . . 8 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → (𝐾‘𝑌) ∈ (LSubSp‘𝑊)) |
| 15 | 1, 13 | lspssid 21265 | . . . . . . . 8 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → 𝑌 ⊆ (𝐾‘𝑌)) |
| 16 | eqid 2760 | . . . . . . . . 9 ⊢ (LSpan‘𝑋) = (LSpan‘𝑋) | |
| 17 | 6, 13, 16, 12 | lsslsp 21295 | . . . . . . . 8 ⊢ ((𝑊 ∈ LMod ∧ (𝐾‘𝑌) ∈ (LSubSp‘𝑊) ∧ 𝑌 ⊆ (𝐾‘𝑌)) → ((LSpan‘𝑋)‘𝑌) = (𝐾‘𝑌)) |
| 18 | 11, 14, 15, 17 | syl3anc 1398 | . . . . . . 7 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → ((LSpan‘𝑋)‘𝑌) = (𝐾‘𝑌)) |
| 19 | 1, 13 | lspssv 21263 | . . . . . . . 8 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → (𝐾‘𝑌) ⊆ 𝐵) |
| 20 | 6, 1 | ressbas2 17421 | . . . . . . . 8 ⊢ ((𝐾‘𝑌) ⊆ 𝐵 → (𝐾‘𝑌) = (Base‘𝑋)) |
| 21 | 19, 20 | syl 18 | . . . . . . 7 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → (𝐾‘𝑌) = (Base‘𝑋)) |
| 22 | 18, 21 | eqtrd 2795 | . . . . . 6 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → ((LSpan‘𝑋)‘𝑌) = (Base‘𝑋)) |
| 23 | 22 | biantrud 541 | . . . . 5 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → (𝑌 ∈ (LIndS‘𝑊) ↔ (𝑌 ∈ (LIndS‘𝑊) ∧ ((LSpan‘𝑋)‘𝑌) = (Base‘𝑋)))) |
| 24 | 12, 6 | lsslinds 22142 | . . . . . . . 8 ⊢ ((𝑊 ∈ LMod ∧ (𝐾‘𝑌) ∈ (LSubSp‘𝑊) ∧ 𝑌 ⊆ (𝐾‘𝑌)) → (𝑌 ∈ (LIndS‘𝑋) ↔ 𝑌 ∈ (LIndS‘𝑊))) |
| 25 | 11, 14, 15, 24 | syl3anc 1398 | . . . . . . 7 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → (𝑌 ∈ (LIndS‘𝑋) ↔ 𝑌 ∈ (LIndS‘𝑊))) |
| 26 | 25 | bicomd 226 | . . . . . 6 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → (𝑌 ∈ (LIndS‘𝑊) ↔ 𝑌 ∈ (LIndS‘𝑋))) |
| 27 | 26 | anbi1d 643 | . . . . 5 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → ((𝑌 ∈ (LIndS‘𝑊) ∧ ((LSpan‘𝑋)‘𝑌) = (Base‘𝑋)) ↔ (𝑌 ∈ (LIndS‘𝑋) ∧ ((LSpan‘𝑋)‘𝑌) = (Base‘𝑋)))) |
| 28 | 23, 27 | bitrd 282 | . . . 4 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → (𝑌 ∈ (LIndS‘𝑊) ↔ (𝑌 ∈ (LIndS‘𝑋) ∧ ((LSpan‘𝑋)‘𝑌) = (Base‘𝑋)))) |
| 29 | 28 | ex 418 | . . 3 ⊢ (𝑊 ∈ LMod → (𝑌 ⊆ 𝐵 → (𝑌 ∈ (LIndS‘𝑊) ↔ (𝑌 ∈ (LIndS‘𝑋) ∧ ((LSpan‘𝑋)‘𝑌) = (Base‘𝑋))))) |
| 30 | 3, 10, 29 | pm5.21ndd 382 | . 2 ⊢ (𝑊 ∈ LMod → (𝑌 ∈ (LIndS‘𝑊) ↔ (𝑌 ∈ (LIndS‘𝑋) ∧ ((LSpan‘𝑋)‘𝑌) = (Base‘𝑋)))) |
| 31 | islinds3.j | . . 3 ⊢ 𝐽 = (LBasis‘𝑋) | |
| 32 | 4, 31, 16 | islbs4 22143 | . 2 ⊢ (𝑌 ∈ 𝐽 ↔ (𝑌 ∈ (LIndS‘𝑋) ∧ ((LSpan‘𝑋)‘𝑌) = (Base‘𝑋))) |
| 33 | 30, 32 | bitr4di 292 | 1 ⊢ (𝑊 ∈ LMod → (𝑌 ∈ (LIndS‘𝑊) ↔ 𝑌 ∈ 𝐽)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 = wceq 1569 ∈ wcel 2144 ⊆ wss 3895 ‘cfv 6538 (class class class)co 7420 Basecbs 17392 ↾s cress 17413 LModclmod 21140 LSubSpclss 21211 LSpanclspn 21251 LBasisclbs 21354 LIndSclinds 22116 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7751 ax-cnex 11259 ax-resscn 11260 ax-1cn 11261 ax-icn 11262 ax-addcl 11263 ax-addrcl 11264 ax-mulcl 11265 ax-mulrcl 11266 ax-mulcom 11267 ax-addass 11268 ax-mulass 11269 ax-distr 11270 ax-i2m1 11271 ax-1ne0 11272 ax-1rid 11273 ax-rnegex 11274 ax-rrecex 11275 ax-cnre 11276 ax-pre-lttri 11277 ax-pre-lttrn 11278 ax-pre-ltadd 11279 ax-pre-mulgt0 11280 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-int 4907 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7878 df-1st 8001 df-2nd 8002 df-frecs 8302 df-wrecs 8333 df-recs 8382 df-rdg 8421 df-er 8720 df-en 8977 df-dom 8978 df-sdom 8979 df-pnf 11348 df-mnf 11349 df-xr 11350 df-ltxr 11351 df-le 11352 df-sub 11546 df-neg 11547 df-nn 12339 df-2 12408 df-3 12409 df-4 12410 df-5 12411 df-6 12412 df-sets 17347 df-slot 17365 df-ndx 17377 df-base 17393 df-ress 17414 df-plusg 17446 df-sca 17449 df-vsca 17450 df-0g 17617 df-mgm 18821 df-sgrp 18913 df-mnd 18929 df-grp 19152 df-minusg 19153 df-sbg 19154 df-subg 19338 df-mgp 20366 df-ur 20413 df-ring 20466 df-lmod 21142 df-lss 21212 df-lsp 21252 df-lbs 21355 df-lindf 22117 df-linds 22118 |
| This theorem is used by: (None) |
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