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| Mirrors > Home > MPE Home > Th. List > lbsextg | Structured version Visualization version GIF version | ||
| Description: For any linearly independent subset 𝐶 of 𝑉, there is a basis containing the vectors in 𝐶. (Contributed by Mario Carneiro, 17-May-2015.) |
| Ref | Expression |
|---|---|
| lbsex.j | ⊢ 𝐽 = (LBasis‘𝑊) |
| lbsex.v | ⊢ 𝑉 = (Base‘𝑊) |
| lbsex.n | ⊢ 𝑁 = (LSpan‘𝑊) |
| Ref | Expression |
|---|---|
| lbsextg | ⊢ (((𝑊 ∈ LVec ∧ 𝒫 𝑉 ∈ dom card) ∧ 𝐶 ⊆ 𝑉 ∧ ∀𝑥 ∈ 𝐶 ¬ 𝑥 ∈ (𝑁‘(𝐶 ∖ {𝑥}))) → ∃𝑠 ∈ 𝐽 𝐶 ⊆ 𝑠) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lbsex.v | . 2 ⊢ 𝑉 = (Base‘𝑊) | |
| 2 | lbsex.j | . 2 ⊢ 𝐽 = (LBasis‘𝑊) | |
| 3 | lbsex.n | . 2 ⊢ 𝑁 = (LSpan‘𝑊) | |
| 4 | simp1l 1199 | . 2 ⊢ (((𝑊 ∈ LVec ∧ 𝒫 𝑉 ∈ dom card) ∧ 𝐶 ⊆ 𝑉 ∧ ∀𝑥 ∈ 𝐶 ¬ 𝑥 ∈ (𝑁‘(𝐶 ∖ {𝑥}))) → 𝑊 ∈ LVec) | |
| 5 | simp2 1138 | . 2 ⊢ (((𝑊 ∈ LVec ∧ 𝒫 𝑉 ∈ dom card) ∧ 𝐶 ⊆ 𝑉 ∧ ∀𝑥 ∈ 𝐶 ¬ 𝑥 ∈ (𝑁‘(𝐶 ∖ {𝑥}))) → 𝐶 ⊆ 𝑉) | |
| 6 | simp3 1139 | . . 3 ⊢ (((𝑊 ∈ LVec ∧ 𝒫 𝑉 ∈ dom card) ∧ 𝐶 ⊆ 𝑉 ∧ ∀𝑥 ∈ 𝐶 ¬ 𝑥 ∈ (𝑁‘(𝐶 ∖ {𝑥}))) → ∀𝑥 ∈ 𝐶 ¬ 𝑥 ∈ (𝑁‘(𝐶 ∖ {𝑥}))) | |
| 7 | id 22 | . . . . . 6 ⊢ (𝑥 = 𝑦 → 𝑥 = 𝑦) | |
| 8 | sneq 4578 | . . . . . . . 8 ⊢ (𝑥 = 𝑦 → {𝑥} = {𝑦}) | |
| 9 | 8 | difeq2d 4067 | . . . . . . 7 ⊢ (𝑥 = 𝑦 → (𝐶 ∖ {𝑥}) = (𝐶 ∖ {𝑦})) |
| 10 | 9 | fveq2d 6840 | . . . . . 6 ⊢ (𝑥 = 𝑦 → (𝑁‘(𝐶 ∖ {𝑥})) = (𝑁‘(𝐶 ∖ {𝑦}))) |
| 11 | 7, 10 | eleq12d 2831 | . . . . 5 ⊢ (𝑥 = 𝑦 → (𝑥 ∈ (𝑁‘(𝐶 ∖ {𝑥})) ↔ 𝑦 ∈ (𝑁‘(𝐶 ∖ {𝑦})))) |
| 12 | 11 | notbid 318 | . . . 4 ⊢ (𝑥 = 𝑦 → (¬ 𝑥 ∈ (𝑁‘(𝐶 ∖ {𝑥})) ↔ ¬ 𝑦 ∈ (𝑁‘(𝐶 ∖ {𝑦})))) |
| 13 | 12 | cbvralvw 3216 | . . 3 ⊢ (∀𝑥 ∈ 𝐶 ¬ 𝑥 ∈ (𝑁‘(𝐶 ∖ {𝑥})) ↔ ∀𝑦 ∈ 𝐶 ¬ 𝑦 ∈ (𝑁‘(𝐶 ∖ {𝑦}))) |
| 14 | 6, 13 | sylib 218 | . 2 ⊢ (((𝑊 ∈ LVec ∧ 𝒫 𝑉 ∈ dom card) ∧ 𝐶 ⊆ 𝑉 ∧ ∀𝑥 ∈ 𝐶 ¬ 𝑥 ∈ (𝑁‘(𝐶 ∖ {𝑥}))) → ∀𝑦 ∈ 𝐶 ¬ 𝑦 ∈ (𝑁‘(𝐶 ∖ {𝑦}))) |
| 15 | 8 | difeq2d 4067 | . . . . . . . 8 ⊢ (𝑥 = 𝑦 → (𝑧 ∖ {𝑥}) = (𝑧 ∖ {𝑦})) |
| 16 | 15 | fveq2d 6840 | . . . . . . 7 ⊢ (𝑥 = 𝑦 → (𝑁‘(𝑧 ∖ {𝑥})) = (𝑁‘(𝑧 ∖ {𝑦}))) |
| 17 | 7, 16 | eleq12d 2831 | . . . . . 6 ⊢ (𝑥 = 𝑦 → (𝑥 ∈ (𝑁‘(𝑧 ∖ {𝑥})) ↔ 𝑦 ∈ (𝑁‘(𝑧 ∖ {𝑦})))) |
| 18 | 17 | notbid 318 | . . . . 5 ⊢ (𝑥 = 𝑦 → (¬ 𝑥 ∈ (𝑁‘(𝑧 ∖ {𝑥})) ↔ ¬ 𝑦 ∈ (𝑁‘(𝑧 ∖ {𝑦})))) |
| 19 | 18 | cbvralvw 3216 | . . . 4 ⊢ (∀𝑥 ∈ 𝑧 ¬ 𝑥 ∈ (𝑁‘(𝑧 ∖ {𝑥})) ↔ ∀𝑦 ∈ 𝑧 ¬ 𝑦 ∈ (𝑁‘(𝑧 ∖ {𝑦}))) |
| 20 | 19 | anbi2i 624 | . . 3 ⊢ ((𝐶 ⊆ 𝑧 ∧ ∀𝑥 ∈ 𝑧 ¬ 𝑥 ∈ (𝑁‘(𝑧 ∖ {𝑥}))) ↔ (𝐶 ⊆ 𝑧 ∧ ∀𝑦 ∈ 𝑧 ¬ 𝑦 ∈ (𝑁‘(𝑧 ∖ {𝑦})))) |
| 21 | 20 | rabbii 3395 | . 2 ⊢ {𝑧 ∈ 𝒫 𝑉 ∣ (𝐶 ⊆ 𝑧 ∧ ∀𝑥 ∈ 𝑧 ¬ 𝑥 ∈ (𝑁‘(𝑧 ∖ {𝑥})))} = {𝑧 ∈ 𝒫 𝑉 ∣ (𝐶 ⊆ 𝑧 ∧ ∀𝑦 ∈ 𝑧 ¬ 𝑦 ∈ (𝑁‘(𝑧 ∖ {𝑦})))} |
| 22 | simp1r 1200 | . 2 ⊢ (((𝑊 ∈ LVec ∧ 𝒫 𝑉 ∈ dom card) ∧ 𝐶 ⊆ 𝑉 ∧ ∀𝑥 ∈ 𝐶 ¬ 𝑥 ∈ (𝑁‘(𝐶 ∖ {𝑥}))) → 𝒫 𝑉 ∈ dom card) | |
| 23 | 1, 2, 3, 4, 5, 14, 21, 22 | lbsextlem4 21155 | 1 ⊢ (((𝑊 ∈ LVec ∧ 𝒫 𝑉 ∈ dom card) ∧ 𝐶 ⊆ 𝑉 ∧ ∀𝑥 ∈ 𝐶 ¬ 𝑥 ∈ (𝑁‘(𝐶 ∖ {𝑥}))) → ∃𝑠 ∈ 𝐽 𝐶 ⊆ 𝑠) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ∧ wa 395 ∧ w3a 1087 = wceq 1542 ∈ wcel 2114 ∀wral 3052 ∃wrex 3062 {crab 3390 ∖ cdif 3887 ⊆ wss 3890 𝒫 cpw 4542 {csn 4568 dom cdm 5626 ‘cfv 6494 cardccrd 9854 Basecbs 17174 LSpanclspn 20961 LBasisclbs 21065 LVecclvec 21093 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5213 ax-sep 5232 ax-nul 5242 ax-pow 5304 ax-pr 5372 ax-un 7684 ax-cnex 11089 ax-resscn 11090 ax-1cn 11091 ax-icn 11092 ax-addcl 11093 ax-addrcl 11094 ax-mulcl 11095 ax-mulrcl 11096 ax-mulcom 11097 ax-addass 11098 ax-mulass 11099 ax-distr 11100 ax-i2m1 11101 ax-1ne0 11102 ax-1rid 11103 ax-rnegex 11104 ax-rrecex 11105 ax-cnre 11106 ax-pre-lttri 11107 ax-pre-lttrn 11108 ax-pre-ltadd 11109 ax-pre-mulgt0 11110 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-int 4891 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5521 df-eprel 5526 df-po 5534 df-so 5535 df-fr 5579 df-se 5580 df-we 5581 df-xp 5632 df-rel 5633 df-cnv 5634 df-co 5635 df-dm 5636 df-rn 5637 df-res 5638 df-ima 5639 df-pred 6261 df-ord 6322 df-on 6323 df-lim 6324 df-suc 6325 df-iota 6450 df-fun 6496 df-fn 6497 df-f 6498 df-f1 6499 df-fo 6500 df-f1o 6501 df-fv 6502 df-isom 6503 df-riota 7319 df-ov 7365 df-oprab 7366 df-mpo 7367 df-rpss 7672 df-om 7813 df-1st 7937 df-2nd 7938 df-tpos 8171 df-frecs 8226 df-wrecs 8257 df-recs 8306 df-rdg 8344 df-1o 8400 df-oadd 8404 df-er 8638 df-en 8889 df-dom 8890 df-sdom 8891 df-fin 8892 df-dju 9820 df-card 9858 df-pnf 11176 df-mnf 11177 df-xr 11178 df-ltxr 11179 df-le 11180 df-sub 11374 df-neg 11375 df-nn 12170 df-2 12239 df-3 12240 df-sets 17129 df-slot 17147 df-ndx 17159 df-base 17175 df-ress 17196 df-plusg 17228 df-mulr 17229 df-0g 17399 df-mgm 18603 df-sgrp 18682 df-mnd 18698 df-grp 18907 df-minusg 18908 df-sbg 18909 df-cmn 19752 df-abl 19753 df-mgp 20117 df-rng 20129 df-ur 20158 df-ring 20211 df-oppr 20312 df-dvdsr 20332 df-unit 20333 df-invr 20363 df-drng 20703 df-lmod 20852 df-lss 20922 df-lsp 20962 df-lbs 21066 df-lvec 21094 |
| This theorem is referenced by: lbsext 21157 lbsexg 21158 |
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