| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > lspprat | Structured version Visualization version GIF version | ||
| Description: A proper subspace of the span of a pair of vectors is the span of a singleton (an atom) or the zero subspace (if 𝑧 is zero). Proof suggested by Mario Carneiro, 28-Aug-2014. (Contributed by NM, 29-Aug-2014.) |
| Ref | Expression |
|---|---|
| lspprat.v | ⊢ 𝑉 = (Base‘𝑊) |
| lspprat.s | ⊢ 𝑆 = (LSubSp‘𝑊) |
| lspprat.n | ⊢ 𝑁 = (LSpan‘𝑊) |
| lspprat.w | ⊢ (𝜑 → 𝑊 ∈ LVec) |
| lspprat.u | ⊢ (𝜑 → 𝑈 ∈ 𝑆) |
| lspprat.x | ⊢ (𝜑 → 𝑋 ∈ 𝑉) |
| lspprat.y | ⊢ (𝜑 → 𝑌 ∈ 𝑉) |
| lspprat.p | ⊢ (𝜑 → 𝑈 ⊊ (𝑁‘{𝑋, 𝑌})) |
| Ref | Expression |
|---|---|
| lspprat | ⊢ (𝜑 → ∃𝑧 ∈ 𝑉 𝑈 = (𝑁‘{𝑧})) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssdif0 4324 | . . 3 ⊢ (𝑈 ⊆ {(0g‘𝑊)} ↔ (𝑈 ∖ {(0g‘𝑊)}) = ∅) | |
| 2 | lspprat.w | . . . . . . . 8 ⊢ (𝜑 → 𝑊 ∈ LVec) | |
| 3 | lveclmod 21264 | . . . . . . . 8 ⊢ (𝑊 ∈ LVec → 𝑊 ∈ LMod) | |
| 4 | 2, 3 | syl 18 | . . . . . . 7 ⊢ (𝜑 → 𝑊 ∈ LMod) |
| 5 | lspprat.v | . . . . . . . 8 ⊢ 𝑉 = (Base‘𝑊) | |
| 6 | eqid 2766 | . . . . . . . 8 ⊢ (0g‘𝑊) = (0g‘𝑊) | |
| 7 | 5, 6 | lmod0vcl 21049 | . . . . . . 7 ⊢ (𝑊 ∈ LMod → (0g‘𝑊) ∈ 𝑉) |
| 8 | 4, 7 | syl 18 | . . . . . 6 ⊢ (𝜑 → (0g‘𝑊) ∈ 𝑉) |
| 9 | 8 | adantr 486 | . . . . 5 ⊢ ((𝜑 ∧ 𝑈 ⊆ {(0g‘𝑊)}) → (0g‘𝑊) ∈ 𝑉) |
| 10 | simpr 490 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑈 ⊆ {(0g‘𝑊)}) → 𝑈 ⊆ {(0g‘𝑊)}) | |
| 11 | lspprat.u | . . . . . . . . 9 ⊢ (𝜑 → 𝑈 ∈ 𝑆) | |
| 12 | lspprat.s | . . . . . . . . . 10 ⊢ 𝑆 = (LSubSp‘𝑊) | |
| 13 | 6, 12 | lss0ss 21107 | . . . . . . . . 9 ⊢ ((𝑊 ∈ LMod ∧ 𝑈 ∈ 𝑆) → {(0g‘𝑊)} ⊆ 𝑈) |
| 14 | 4, 11, 13 | syl2anc 596 | . . . . . . . 8 ⊢ (𝜑 → {(0g‘𝑊)} ⊆ 𝑈) |
| 15 | 14 | adantr 486 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑈 ⊆ {(0g‘𝑊)}) → {(0g‘𝑊)} ⊆ 𝑈) |
| 16 | 10, 15 | eqssd 3957 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑈 ⊆ {(0g‘𝑊)}) → 𝑈 = {(0g‘𝑊)}) |
| 17 | lspprat.n | . . . . . . . . 9 ⊢ 𝑁 = (LSpan‘𝑊) | |
| 18 | 6, 17 | lspsn0 21166 | . . . . . . . 8 ⊢ (𝑊 ∈ LMod → (𝑁‘{(0g‘𝑊)}) = {(0g‘𝑊)}) |
| 19 | 4, 18 | syl 18 | . . . . . . 7 ⊢ (𝜑 → (𝑁‘{(0g‘𝑊)}) = {(0g‘𝑊)}) |
| 20 | 19 | adantr 486 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑈 ⊆ {(0g‘𝑊)}) → (𝑁‘{(0g‘𝑊)}) = {(0g‘𝑊)}) |
| 21 | 16, 20 | eqtr4d 2804 | . . . . 5 ⊢ ((𝜑 ∧ 𝑈 ⊆ {(0g‘𝑊)}) → 𝑈 = (𝑁‘{(0g‘𝑊)})) |
| 22 | sneq 4604 | . . . . . . 7 ⊢ (𝑧 = (0g‘𝑊) → {𝑧} = {(0g‘𝑊)}) | |
| 23 | 22 | fveq2d 6892 | . . . . . 6 ⊢ (𝑧 = (0g‘𝑊) → (𝑁‘{𝑧}) = (𝑁‘{(0g‘𝑊)})) |
| 24 | 23 | rspceeqv 3607 | . . . . 5 ⊢ (((0g‘𝑊) ∈ 𝑉 ∧ 𝑈 = (𝑁‘{(0g‘𝑊)})) → ∃𝑧 ∈ 𝑉 𝑈 = (𝑁‘{𝑧})) |
| 25 | 9, 21, 24 | syl2anc 596 | . . . 4 ⊢ ((𝜑 ∧ 𝑈 ⊆ {(0g‘𝑊)}) → ∃𝑧 ∈ 𝑉 𝑈 = (𝑁‘{𝑧})) |
| 26 | 25 | ex 418 | . . 3 ⊢ (𝜑 → (𝑈 ⊆ {(0g‘𝑊)} → ∃𝑧 ∈ 𝑉 𝑈 = (𝑁‘{𝑧}))) |
| 27 | 1, 26 | biimtrrid 246 | . 2 ⊢ (𝜑 → ((𝑈 ∖ {(0g‘𝑊)}) = ∅ → ∃𝑧 ∈ 𝑉 𝑈 = (𝑁‘{𝑧}))) |
| 28 | 5, 12 | lssss 21094 | . . . . . . . 8 ⊢ (𝑈 ∈ 𝑆 → 𝑈 ⊆ 𝑉) |
| 29 | 11, 28 | syl 18 | . . . . . . 7 ⊢ (𝜑 → 𝑈 ⊆ 𝑉) |
| 30 | 29 | ssdifssd 4104 | . . . . . 6 ⊢ (𝜑 → (𝑈 ∖ {(0g‘𝑊)}) ⊆ 𝑉) |
| 31 | 30 | sseld 3939 | . . . . 5 ⊢ (𝜑 → (𝑧 ∈ (𝑈 ∖ {(0g‘𝑊)}) → 𝑧 ∈ 𝑉)) |
| 32 | lspprat.x | . . . . . 6 ⊢ (𝜑 → 𝑋 ∈ 𝑉) | |
| 33 | lspprat.y | . . . . . 6 ⊢ (𝜑 → 𝑌 ∈ 𝑉) | |
| 34 | lspprat.p | . . . . . 6 ⊢ (𝜑 → 𝑈 ⊊ (𝑁‘{𝑋, 𝑌})) | |
| 35 | 5, 12, 17, 2, 11, 32, 33, 34, 6 | lsppratlem6 21313 | . . . . 5 ⊢ (𝜑 → (𝑧 ∈ (𝑈 ∖ {(0g‘𝑊)}) → 𝑈 = (𝑁‘{𝑧}))) |
| 36 | 31, 35 | jcad 522 | . . . 4 ⊢ (𝜑 → (𝑧 ∈ (𝑈 ∖ {(0g‘𝑊)}) → (𝑧 ∈ 𝑉 ∧ 𝑈 = (𝑁‘{𝑧})))) |
| 37 | 36 | eximdv 1950 | . . 3 ⊢ (𝜑 → (∃𝑧 𝑧 ∈ (𝑈 ∖ {(0g‘𝑊)}) → ∃𝑧(𝑧 ∈ 𝑉 ∧ 𝑈 = (𝑁‘{𝑧})))) |
| 38 | n0 4310 | . . 3 ⊢ ((𝑈 ∖ {(0g‘𝑊)}) ≠ ∅ ↔ ∃𝑧 𝑧 ∈ (𝑈 ∖ {(0g‘𝑊)})) | |
| 39 | df-rex 3093 | . . 3 ⊢ (∃𝑧 ∈ 𝑉 𝑈 = (𝑁‘{𝑧}) ↔ ∃𝑧(𝑧 ∈ 𝑉 ∧ 𝑈 = (𝑁‘{𝑧}))) | |
| 40 | 37, 38, 39 | 3imtr4g 299 | . 2 ⊢ (𝜑 → ((𝑈 ∖ {(0g‘𝑊)}) ≠ ∅ → ∃𝑧 ∈ 𝑉 𝑈 = (𝑁‘{𝑧}))) |
| 41 | 27, 40 | pm2.61dne 3047 | 1 ⊢ (𝜑 → ∃𝑧 ∈ 𝑉 𝑈 = (𝑁‘{𝑧})) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∃wex 1812 ∈ wcel 2146 ≠ wne 2961 ∃wrex 3092 ∖ cdif 3905 ⊆ wss 3908 ⊊ wpss 3909 ∅c0 4289 {csn 4594 {cpr 4596 ‘cfv 6543 Basecbs 17294 0gc0g 17517 LModclmod 21018 LSubSpclss 21089 LSpanclspn 21129 LVecclvec 21260 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2738 ax-rep 5243 ax-sep 5262 ax-nul 5274 ax-pow 5341 ax-pr 5409 ax-un 7745 ax-cnex 11174 ax-resscn 11175 ax-1cn 11176 ax-icn 11177 ax-addcl 11178 ax-addrcl 11179 ax-mulcl 11180 ax-mulrcl 11181 ax-mulcom 11182 ax-addass 11183 ax-mulass 11184 ax-distr 11185 ax-i2m1 11186 ax-1ne0 11187 ax-1rid 11188 ax-rnegex 11189 ax-rrecex 11190 ax-cnre 11191 ax-pre-lttri 11192 ax-pre-lttrn 11193 ax-pre-ltadd 11194 ax-pre-mulgt0 11195 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2570 df-eu 2600 df-clab 2745 df-cleq 2758 df-clel 2841 df-nfc 2915 df-ne 2962 df-nel 3068 df-ral 3083 df-rex 3093 df-rmo 3372 df-reu 3373 df-rab 3420 df-v 3460 df-sbc 3748 df-csb 3857 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-pss 3928 df-nul 4290 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4878 df-int 4918 df-iun 4963 df-br 5115 df-opab 5179 df-mpt 5198 df-tr 5224 df-id 5561 df-eprel 5566 df-po 5574 df-so 5575 df-fr 5619 df-we 5621 df-xp 5672 df-rel 5673 df-cnv 5674 df-co 5675 df-dm 5676 df-rn 5677 df-res 5678 df-ima 5679 df-pred 6309 df-ord 6370 df-on 6371 df-lim 6372 df-suc 6373 df-iota 6499 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-riota 7380 df-ov 7426 df-oprab 7427 df-mpo 7428 df-om 7872 df-1st 7995 df-2nd 7996 df-tpos 8231 df-frecs 8287 df-wrecs 8318 df-recs 8367 df-rdg 8406 df-er 8703 df-en 8953 df-dom 8954 df-sdom 8955 df-pnf 11263 df-mnf 11264 df-xr 11265 df-ltxr 11266 df-le 11267 df-sub 11461 df-neg 11462 df-nn 12252 df-2 12321 df-3 12322 df-sets 17249 df-slot 17267 df-ndx 17279 df-base 17295 df-ress 17316 df-plusg 17348 df-mulr 17349 df-0g 17519 df-mgm 18723 df-sgrp 18806 df-mnd 18822 df-grp 19034 df-minusg 19035 df-sbg 19036 df-cmn 19883 df-abl 19884 df-mgp 20248 df-rng 20262 df-ur 20295 df-ring 20348 df-oppr 20452 df-dvdsr 20472 df-unit 20473 df-invr 20503 df-drng 20866 df-lmod 21020 df-lss 21090 df-lsp 21130 df-lvec 21261 |
| This theorem is used by: dvh3dim3N 42264 |
| Copyright terms: Public domain | W3C validator |