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| Mirrors > Home > MPE Home > Th. List > lsmelvalx | Structured version Visualization version GIF version | ||
| Description: Subspace sum membership (for a group or vector space). Extended domain version of lsmelval 19556. (Contributed by NM, 28-Jan-2014.) (Revised by Mario Carneiro, 19-Apr-2016.) |
| Ref | Expression |
|---|---|
| lsmfval.v | ⊢ 𝐵 = (Base‘𝐺) |
| lsmfval.a | ⊢ + = (+g‘𝐺) |
| lsmfval.s | ⊢ ⊕ = (LSSum‘𝐺) |
| Ref | Expression |
|---|---|
| lsmelvalx | ⊢ ((𝐺 ∈ 𝑉 ∧ 𝑇 ⊆ 𝐵 ∧ 𝑈 ⊆ 𝐵) → (𝑋 ∈ (𝑇 ⊕ 𝑈) ↔ ∃𝑦 ∈ 𝑇 ∃𝑧 ∈ 𝑈 𝑋 = (𝑦 + 𝑧))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lsmfval.v | . . . 4 ⊢ 𝐵 = (Base‘𝐺) | |
| 2 | lsmfval.a | . . . 4 ⊢ + = (+g‘𝐺) | |
| 3 | lsmfval.s | . . . 4 ⊢ ⊕ = (LSSum‘𝐺) | |
| 4 | 1, 2, 3 | lsmvalx 19546 | . . 3 ⊢ ((𝐺 ∈ 𝑉 ∧ 𝑇 ⊆ 𝐵 ∧ 𝑈 ⊆ 𝐵) → (𝑇 ⊕ 𝑈) = ran (𝑦 ∈ 𝑇, 𝑧 ∈ 𝑈 ↦ (𝑦 + 𝑧))) |
| 5 | 4 | eleq2d 2817 | . 2 ⊢ ((𝐺 ∈ 𝑉 ∧ 𝑇 ⊆ 𝐵 ∧ 𝑈 ⊆ 𝐵) → (𝑋 ∈ (𝑇 ⊕ 𝑈) ↔ 𝑋 ∈ ran (𝑦 ∈ 𝑇, 𝑧 ∈ 𝑈 ↦ (𝑦 + 𝑧)))) |
| 6 | eqid 2731 | . . 3 ⊢ (𝑦 ∈ 𝑇, 𝑧 ∈ 𝑈 ↦ (𝑦 + 𝑧)) = (𝑦 ∈ 𝑇, 𝑧 ∈ 𝑈 ↦ (𝑦 + 𝑧)) | |
| 7 | ovex 7374 | . . 3 ⊢ (𝑦 + 𝑧) ∈ V | |
| 8 | 6, 7 | elrnmpo 7477 | . 2 ⊢ (𝑋 ∈ ran (𝑦 ∈ 𝑇, 𝑧 ∈ 𝑈 ↦ (𝑦 + 𝑧)) ↔ ∃𝑦 ∈ 𝑇 ∃𝑧 ∈ 𝑈 𝑋 = (𝑦 + 𝑧)) |
| 9 | 5, 8 | bitrdi 287 | 1 ⊢ ((𝐺 ∈ 𝑉 ∧ 𝑇 ⊆ 𝐵 ∧ 𝑈 ⊆ 𝐵) → (𝑋 ∈ (𝑇 ⊕ 𝑈) ↔ ∃𝑦 ∈ 𝑇 ∃𝑧 ∈ 𝑈 𝑋 = (𝑦 + 𝑧))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ w3a 1086 = wceq 1541 ∈ wcel 2111 ∃wrex 3056 ⊆ wss 3897 ran crn 5612 ‘cfv 6476 (class class class)co 7341 ∈ cmpo 7343 Basecbs 17115 +gcplusg 17156 LSSumclsm 19541 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2113 ax-9 2121 ax-10 2144 ax-11 2160 ax-12 2180 ax-ext 2703 ax-rep 5212 ax-sep 5229 ax-nul 5239 ax-pow 5298 ax-pr 5365 ax-un 7663 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2535 df-eu 2564 df-clab 2710 df-cleq 2723 df-clel 2806 df-nfc 2881 df-ne 2929 df-ral 3048 df-rex 3057 df-reu 3347 df-rab 3396 df-v 3438 df-sbc 3737 df-csb 3846 df-dif 3900 df-un 3902 df-in 3904 df-ss 3914 df-nul 4279 df-if 4471 df-pw 4547 df-sn 4572 df-pr 4574 df-op 4578 df-uni 4855 df-iun 4938 df-br 5087 df-opab 5149 df-mpt 5168 df-id 5506 df-xp 5617 df-rel 5618 df-cnv 5619 df-co 5620 df-dm 5621 df-rn 5622 df-res 5623 df-ima 5624 df-iota 6432 df-fun 6478 df-fn 6479 df-f 6480 df-f1 6481 df-fo 6482 df-f1o 6483 df-fv 6484 df-ov 7344 df-oprab 7345 df-mpo 7346 df-1st 7916 df-2nd 7917 df-lsm 19543 |
| This theorem is referenced by: lsmelvalix 19548 lsmless1x 19551 lsmless2x 19552 lsmelval 19556 lsmsubm 19560 lsmass 19576 lsmcomx 19763 lsmcss 21624 elgrplsmsn 33347 elringlsm 33350 lsmssass 33359 grplsm0l 33360 grplsmid 33361 ssdifidlprm 33415 mxidlprm 33427 dimkerim 33632 |
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