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| Mirrors > Home > ILE Home > Th. List > lssvancl2 | GIF version | ||
| Description: Non-closure: if one vector belongs to a subspace but another does not, their sum does not belong. Useful for obtaining a new vector not in a subspace. (Contributed by NM, 20-May-2015.) |
| Ref | Expression |
|---|---|
| lssvancl.v | ⊢ 𝑉 = (Base‘𝑊) |
| lssvancl.p | ⊢ + = (+g‘𝑊) |
| lssvancl.s | ⊢ 𝑆 = (LSubSp‘𝑊) |
| lssvancl.w | ⊢ (𝜑 → 𝑊 ∈ LMod) |
| lssvancl.u | ⊢ (𝜑 → 𝑈 ∈ 𝑆) |
| lssvancl.x | ⊢ (𝜑 → 𝑋 ∈ 𝑈) |
| lssvancl.y | ⊢ (𝜑 → 𝑌 ∈ 𝑉) |
| lssvancl.n | ⊢ (𝜑 → ¬ 𝑌 ∈ 𝑈) |
| Ref | Expression |
|---|---|
| lssvancl2 | ⊢ (𝜑 → ¬ (𝑌 + 𝑋) ∈ 𝑈) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lssvancl.w | . . 3 ⊢ (𝜑 → 𝑊 ∈ LMod) | |
| 2 | lssvancl.u | . . . 4 ⊢ (𝜑 → 𝑈 ∈ 𝑆) | |
| 3 | lssvancl.x | . . . 4 ⊢ (𝜑 → 𝑋 ∈ 𝑈) | |
| 4 | lssvancl.v | . . . . 5 ⊢ 𝑉 = (Base‘𝑊) | |
| 5 | lssvancl.s | . . . . 5 ⊢ 𝑆 = (LSubSp‘𝑊) | |
| 6 | 4, 5 | lsselg 14807 | . . . 4 ⊢ ((𝑊 ∈ LMod ∧ 𝑈 ∈ 𝑆 ∧ 𝑋 ∈ 𝑈) → 𝑋 ∈ 𝑉) |
| 7 | 1, 2, 3, 6 | syl3anc 1278 | . . 3 ⊢ (𝜑 → 𝑋 ∈ 𝑉) |
| 8 | lssvancl.y | . . 3 ⊢ (𝜑 → 𝑌 ∈ 𝑉) | |
| 9 | lssvancl.p | . . . 4 ⊢ + = (+g‘𝑊) | |
| 10 | 4, 9 | lmodcom 14779 | . . 3 ⊢ ((𝑊 ∈ LMod ∧ 𝑋 ∈ 𝑉 ∧ 𝑌 ∈ 𝑉) → (𝑋 + 𝑌) = (𝑌 + 𝑋)) |
| 11 | 1, 7, 8, 10 | syl3anc 1278 | . 2 ⊢ (𝜑 → (𝑋 + 𝑌) = (𝑌 + 𝑋)) |
| 12 | lssvancl.n | . . 3 ⊢ (𝜑 → ¬ 𝑌 ∈ 𝑈) | |
| 13 | 4, 9, 5, 1, 2, 3, 8, 12 | lssvancl1 14813 | . 2 ⊢ (𝜑 → ¬ (𝑋 + 𝑌) ∈ 𝑈) |
| 14 | 11, 13 | eqneltrrd 2335 | 1 ⊢ (𝜑 → ¬ (𝑌 + 𝑋) ∈ 𝑈) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ¬ wn 3 → wi 4 = wceq 1402 ∈ wcel 2209 ‘cfv 5380 (class class class)co 6088 Basecbs 13410 +gcplusg 13490 LModclmod 14732 LSubSpclss 14798 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-coll 4248 ax-sep 4251 ax-pow 4313 ax-pr 4348 ax-un 4580 ax-setind 4686 ax-cnex 8276 ax-resscn 8277 ax-1cn 8278 ax-1re 8279 ax-icn 8280 ax-addcl 8281 ax-addrcl 8282 ax-mulcl 8283 ax-addcom 8285 ax-addass 8287 ax-i2m1 8290 ax-0lt1 8291 ax-0id 8293 ax-rnegex 8294 ax-pre-ltirr 8297 ax-pre-ltadd 8301 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-nel 2516 df-ral 2533 df-rex 2534 df-reu 2535 df-rmo 2536 df-rab 2537 df-v 2823 df-sbc 3052 df-csb 3148 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-int 3971 df-iun 4014 df-br 4132 df-opab 4194 df-mpt 4195 df-id 4440 df-xp 4782 df-rel 4783 df-cnv 4784 df-co 4785 df-dm 4786 df-rn 4787 df-res 4788 df-ima 4789 df-iota 5340 df-fun 5382 df-fn 5383 df-f 5384 df-f1 5385 df-fo 5386 df-f1o 5387 df-fv 5388 df-riota 6041 df-ov 6091 df-oprab 6092 df-mpo 6093 df-1st 6378 df-2nd 6379 df-pnf 8368 df-mnf 8369 df-ltxr 8371 df-inn 9314 df-2 9372 df-3 9373 df-4 9374 df-5 9375 df-6 9376 df-ndx 13413 df-slot 13414 df-base 13416 df-sets 13417 df-plusg 13503 df-mulr 13504 df-sca 13506 df-vsca 13507 df-0g 13671 df-mgm 13735 df-sgrp 13776 df-mnd 13789 df-grp 13867 df-minusg 13868 df-sbg 13869 df-cmn 14179 df-abl 14180 df-mgp 14325 df-ur 14370 df-ring 14409 df-lmod 14734 df-lssm 14799 |
| This theorem is used by: (None) |
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