| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 1205 | . 2 ⊢ (((𝑊 ∈ LVec ∧ 𝒫 𝑉 ∈ dom card) ∧ 𝐶 ⊆ 𝑉 ∧ ∀𝑥 ∈ 𝐶 ¬ 𝑥 ∈ (𝑁‘(𝐶 ∖ {𝑥}))) → 𝑊 ∈ LVec) | |
| 5 | simp2 1144 | . 2 ⊢ (((𝑊 ∈ LVec ∧ 𝒫 𝑉 ∈ dom card) ∧ 𝐶 ⊆ 𝑉 ∧ ∀𝑥 ∈ 𝐶 ¬ 𝑥 ∈ (𝑁‘(𝐶 ∖ {𝑥}))) → 𝐶 ⊆ 𝑉) | |
| 6 | simp3 1145 | . . 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 4568 | . . . . . . . 8 ⊢ (𝑥 = 𝑦 → {𝑥} = {𝑦}) | |
| 9 | 8 | difeq2d 4060 | . . . . . . 7 ⊢ (𝑥 = 𝑦 → (𝐶 ∖ {𝑥}) = (𝐶 ∖ {𝑦})) |
| 10 | 9 | fveq2d 6835 | . . . . . 6 ⊢ (𝑥 = 𝑦 → (𝑁‘(𝐶 ∖ {𝑥})) = (𝑁‘(𝐶 ∖ {𝑦}))) |
| 11 | 7, 10 | eleq12d 2835 | . . . . 5 ⊢ (𝑥 = 𝑦 → (𝑥 ∈ (𝑁‘(𝐶 ∖ {𝑥})) ↔ 𝑦 ∈ (𝑁‘(𝐶 ∖ {𝑦})))) |
| 12 | 11 | notbid 320 | . . . 4 ⊢ (𝑥 = 𝑦 → (¬ 𝑥 ∈ (𝑁‘(𝐶 ∖ {𝑥})) ↔ ¬ 𝑦 ∈ (𝑁‘(𝐶 ∖ {𝑦})))) |
| 13 | 12 | cbvralvw 3219 | . . 3 ⊢ (∀𝑥 ∈ 𝐶 ¬ 𝑥 ∈ (𝑁‘(𝐶 ∖ {𝑥})) ↔ ∀𝑦 ∈ 𝐶 ¬ 𝑦 ∈ (𝑁‘(𝐶 ∖ {𝑦}))) |
| 14 | 6, 13 | sylib 220 | . 2 ⊢ (((𝑊 ∈ LVec ∧ 𝒫 𝑉 ∈ dom card) ∧ 𝐶 ⊆ 𝑉 ∧ ∀𝑥 ∈ 𝐶 ¬ 𝑥 ∈ (𝑁‘(𝐶 ∖ {𝑥}))) → ∀𝑦 ∈ 𝐶 ¬ 𝑦 ∈ (𝑁‘(𝐶 ∖ {𝑦}))) |
| 15 | 8 | difeq2d 4060 | . . . . . . . 8 ⊢ (𝑥 = 𝑦 → (𝑧 ∖ {𝑥}) = (𝑧 ∖ {𝑦})) |
| 16 | 15 | fveq2d 6835 | . . . . . . 7 ⊢ (𝑥 = 𝑦 → (𝑁‘(𝑧 ∖ {𝑥})) = (𝑁‘(𝑧 ∖ {𝑦}))) |
| 17 | 7, 16 | eleq12d 2835 | . . . . . 6 ⊢ (𝑥 = 𝑦 → (𝑥 ∈ (𝑁‘(𝑧 ∖ {𝑥})) ↔ 𝑦 ∈ (𝑁‘(𝑧 ∖ {𝑦})))) |
| 18 | 17 | notbid 320 | . . . . 5 ⊢ (𝑥 = 𝑦 → (¬ 𝑥 ∈ (𝑁‘(𝑧 ∖ {𝑥})) ↔ ¬ 𝑦 ∈ (𝑁‘(𝑧 ∖ {𝑦})))) |
| 19 | 18 | cbvralvw 3219 | . . . 4 ⊢ (∀𝑥 ∈ 𝑧 ¬ 𝑥 ∈ (𝑁‘(𝑧 ∖ {𝑥})) ↔ ∀𝑦 ∈ 𝑧 ¬ 𝑦 ∈ (𝑁‘(𝑧 ∖ {𝑦}))) |
| 20 | 19 | anbi2i 630 | . . 3 ⊢ ((𝐶 ⊆ 𝑧 ∧ ∀𝑥 ∈ 𝑧 ¬ 𝑥 ∈ (𝑁‘(𝑧 ∖ {𝑥}))) ↔ (𝐶 ⊆ 𝑧 ∧ ∀𝑦 ∈ 𝑧 ¬ 𝑦 ∈ (𝑁‘(𝑧 ∖ {𝑦})))) |
| 21 | 20 | rabbii 3398 | . 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 1206 | . 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 21158 | 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 397 ∧ w3a 1093 = wceq 1548 ∈ wcel 2121 ∀wral 3055 ∃wrex 3065 {crab 3393 ∖ cdif 3882 ⊆ wss 3885 𝒫 cpw 4532 {csn 4558 dom cdm 5621 ‘cfv 6489 cardccrd 9854 Basecbs 17174 LSpanclspn 20965 LBasisclbs 21068 LVecclvec 21096 |
| 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 1975 ax-7 2016 ax-8 2123 ax-9 2131 ax-10 2154 ax-11 2170 ax-12 2191 ax-ext 2713 ax-rep 5202 ax-sep 5221 ax-nul 5231 ax-pow 5297 ax-pr 5365 ax-un 7682 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 209 df-an 398 df-or 855 df-3or 1094 df-3an 1095 df-tru 1551 df-fal 1561 df-ex 1788 df-nf 1792 df-sb 2075 df-mo 2545 df-eu 2575 df-clab 2720 df-cleq 2733 df-clel 2816 df-nfc 2890 df-ne 2937 df-nel 3041 df-ral 3056 df-rex 3066 df-rmo 3346 df-reu 3347 df-rab 3394 df-v 3435 df-sbc 3726 df-csb 3834 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-pss 3905 df-nul 4265 df-if 4458 df-pw 4534 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4842 df-int 4881 df-iun 4926 df-br 5076 df-opab 5138 df-mpt 5157 df-tr 5183 df-id 5516 df-eprel 5521 df-po 5529 df-so 5530 df-fr 5574 df-se 5575 df-we 5576 df-xp 5627 df-rel 5628 df-cnv 5629 df-co 5630 df-dm 5631 df-rn 5632 df-res 5633 df-ima 5634 df-pred 6256 df-ord 6317 df-on 6318 df-lim 6319 df-suc 6320 df-iota 6445 df-fun 6491 df-fn 6492 df-f 6493 df-f1 6494 df-fo 6495 df-f1o 6496 df-fv 6497 df-isom 6498 df-riota 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-rpss 7670 df-om 7811 df-1st 7935 df-2nd 7936 df-tpos 8170 df-frecs 8225 df-wrecs 8256 df-recs 8305 df-rdg 8343 df-1o 8399 df-oadd 8403 df-er 8637 df-en 8888 df-dom 8889 df-sdom 8890 df-fin 8891 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 20707 df-lmod 20856 df-lss 20926 df-lsp 20966 df-lbs 21069 df-lvec 21097 |
| This theorem is referenced by: lbsext 21160 lbsexg 21161 |
| Copyright terms: Public domain | W3C validator |