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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 21770 | . . . 4 ⊢ (𝑌 ∈ (LIndS‘𝑊) → 𝑌 ⊆ 𝐵) |
| 3 | 2 | a1i 11 | . . 3 ⊢ (𝑊 ∈ LMod → (𝑌 ∈ (LIndS‘𝑊) → 𝑌 ⊆ 𝐵)) |
| 4 | eqid 2735 | . . . . . . 7 ⊢ (Base‘𝑋) = (Base‘𝑋) | |
| 5 | 4 | linds1 21770 | . . . . . 6 ⊢ (𝑌 ∈ (LIndS‘𝑋) → 𝑌 ⊆ (Base‘𝑋)) |
| 6 | islinds3.x | . . . . . . 7 ⊢ 𝑋 = (𝑊 ↾s (𝐾‘𝑌)) | |
| 7 | 6, 1 | ressbasss 17260 | . . . . . 6 ⊢ (Base‘𝑋) ⊆ 𝐵 |
| 8 | 5, 7 | sstrdi 3971 | . . . . 5 ⊢ (𝑌 ∈ (LIndS‘𝑋) → 𝑌 ⊆ 𝐵) |
| 9 | 8 | adantr 480 | . . . 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 482 | . . . . . . . 8 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → 𝑊 ∈ LMod) | |
| 12 | eqid 2735 | . . . . . . . . 9 ⊢ (LSubSp‘𝑊) = (LSubSp‘𝑊) | |
| 13 | islinds3.k | . . . . . . . . 9 ⊢ 𝐾 = (LSpan‘𝑊) | |
| 14 | 1, 12, 13 | lspcl 20933 | . . . . . . . 8 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → (𝐾‘𝑌) ∈ (LSubSp‘𝑊)) |
| 15 | 1, 13 | lspssid 20942 | . . . . . . . 8 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → 𝑌 ⊆ (𝐾‘𝑌)) |
| 16 | eqid 2735 | . . . . . . . . 9 ⊢ (LSpan‘𝑋) = (LSpan‘𝑋) | |
| 17 | 6, 13, 16, 12 | lsslsp 20972 | . . . . . . . 8 ⊢ ((𝑊 ∈ LMod ∧ (𝐾‘𝑌) ∈ (LSubSp‘𝑊) ∧ 𝑌 ⊆ (𝐾‘𝑌)) → ((LSpan‘𝑋)‘𝑌) = (𝐾‘𝑌)) |
| 18 | 11, 14, 15, 17 | syl3anc 1373 | . . . . . . 7 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → ((LSpan‘𝑋)‘𝑌) = (𝐾‘𝑌)) |
| 19 | 1, 13 | lspssv 20940 | . . . . . . . 8 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → (𝐾‘𝑌) ⊆ 𝐵) |
| 20 | 6, 1 | ressbas2 17259 | . . . . . . . 8 ⊢ ((𝐾‘𝑌) ⊆ 𝐵 → (𝐾‘𝑌) = (Base‘𝑋)) |
| 21 | 19, 20 | syl 17 | . . . . . . 7 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → (𝐾‘𝑌) = (Base‘𝑋)) |
| 22 | 18, 21 | eqtrd 2770 | . . . . . 6 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → ((LSpan‘𝑋)‘𝑌) = (Base‘𝑋)) |
| 23 | 22 | biantrud 531 | . . . . 5 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → (𝑌 ∈ (LIndS‘𝑊) ↔ (𝑌 ∈ (LIndS‘𝑊) ∧ ((LSpan‘𝑋)‘𝑌) = (Base‘𝑋)))) |
| 24 | 12, 6 | lsslinds 21791 | . . . . . . . 8 ⊢ ((𝑊 ∈ LMod ∧ (𝐾‘𝑌) ∈ (LSubSp‘𝑊) ∧ 𝑌 ⊆ (𝐾‘𝑌)) → (𝑌 ∈ (LIndS‘𝑋) ↔ 𝑌 ∈ (LIndS‘𝑊))) |
| 25 | 11, 14, 15, 24 | syl3anc 1373 | . . . . . . 7 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → (𝑌 ∈ (LIndS‘𝑋) ↔ 𝑌 ∈ (LIndS‘𝑊))) |
| 26 | 25 | bicomd 223 | . . . . . 6 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → (𝑌 ∈ (LIndS‘𝑊) ↔ 𝑌 ∈ (LIndS‘𝑋))) |
| 27 | 26 | anbi1d 631 | . . . . 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 279 | . . . 4 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ⊆ 𝐵) → (𝑌 ∈ (LIndS‘𝑊) ↔ (𝑌 ∈ (LIndS‘𝑋) ∧ ((LSpan‘𝑋)‘𝑌) = (Base‘𝑋)))) |
| 29 | 28 | ex 412 | . . 3 ⊢ (𝑊 ∈ LMod → (𝑌 ⊆ 𝐵 → (𝑌 ∈ (LIndS‘𝑊) ↔ (𝑌 ∈ (LIndS‘𝑋) ∧ ((LSpan‘𝑋)‘𝑌) = (Base‘𝑋))))) |
| 30 | 3, 10, 29 | pm5.21ndd 379 | . 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 21792 | . 2 ⊢ (𝑌 ∈ 𝐽 ↔ (𝑌 ∈ (LIndS‘𝑋) ∧ ((LSpan‘𝑋)‘𝑌) = (Base‘𝑋))) |
| 33 | 30, 32 | bitr4di 289 | 1 ⊢ (𝑊 ∈ LMod → (𝑌 ∈ (LIndS‘𝑊) ↔ 𝑌 ∈ 𝐽)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1540 ∈ wcel 2108 ⊆ wss 3926 ‘cfv 6531 (class class class)co 7405 Basecbs 17228 ↾s cress 17251 LModclmod 20817 LSubSpclss 20888 LSpanclspn 20928 LBasisclbs 21032 LIndSclinds 21765 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2157 ax-12 2177 ax-ext 2707 ax-rep 5249 ax-sep 5266 ax-nul 5276 ax-pow 5335 ax-pr 5402 ax-un 7729 ax-cnex 11185 ax-resscn 11186 ax-1cn 11187 ax-icn 11188 ax-addcl 11189 ax-addrcl 11190 ax-mulcl 11191 ax-mulrcl 11192 ax-mulcom 11193 ax-addass 11194 ax-mulass 11195 ax-distr 11196 ax-i2m1 11197 ax-1ne0 11198 ax-1rid 11199 ax-rnegex 11200 ax-rrecex 11201 ax-cnre 11202 ax-pre-lttri 11203 ax-pre-lttrn 11204 ax-pre-ltadd 11205 ax-pre-mulgt0 11206 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2065 df-mo 2539 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2809 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3061 df-rmo 3359 df-reu 3360 df-rab 3416 df-v 3461 df-sbc 3766 df-csb 3875 df-dif 3929 df-un 3931 df-in 3933 df-ss 3943 df-pss 3946 df-nul 4309 df-if 4501 df-pw 4577 df-sn 4602 df-pr 4604 df-op 4608 df-uni 4884 df-int 4923 df-iun 4969 df-br 5120 df-opab 5182 df-mpt 5202 df-tr 5230 df-id 5548 df-eprel 5553 df-po 5561 df-so 5562 df-fr 5606 df-we 5608 df-xp 5660 df-rel 5661 df-cnv 5662 df-co 5663 df-dm 5664 df-rn 5665 df-res 5666 df-ima 5667 df-pred 6290 df-ord 6355 df-on 6356 df-lim 6357 df-suc 6358 df-iota 6484 df-fun 6533 df-fn 6534 df-f 6535 df-f1 6536 df-fo 6537 df-f1o 6538 df-fv 6539 df-riota 7362 df-ov 7408 df-oprab 7409 df-mpo 7410 df-om 7862 df-1st 7988 df-2nd 7989 df-frecs 8280 df-wrecs 8311 df-recs 8385 df-rdg 8424 df-er 8719 df-en 8960 df-dom 8961 df-sdom 8962 df-pnf 11271 df-mnf 11272 df-xr 11273 df-ltxr 11274 df-le 11275 df-sub 11468 df-neg 11469 df-nn 12241 df-2 12303 df-3 12304 df-4 12305 df-5 12306 df-6 12307 df-sets 17183 df-slot 17201 df-ndx 17213 df-base 17229 df-ress 17252 df-plusg 17284 df-sca 17287 df-vsca 17288 df-0g 17455 df-mgm 18618 df-sgrp 18697 df-mnd 18713 df-grp 18919 df-minusg 18920 df-sbg 18921 df-subg 19106 df-mgp 20101 df-ur 20142 df-ring 20195 df-lmod 20819 df-lss 20889 df-lsp 20929 df-lbs 21033 df-lindf 21766 df-linds 21767 |
| This theorem is referenced by: (None) |
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