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| Mirrors > Home > MPE Home > Th. List > lmodsn0 | Structured version Visualization version GIF version | ||
| Description: The set of scalars in a left module is nonempty. (Contributed by NM, 8-Dec-2013.) (Revised by Mario Carneiro, 19-Jun-2014.) |
| Ref | Expression |
|---|---|
| lmodsn0.f | ⊢ 𝐹 = (Scalar‘𝑊) |
| lmodsn0.b | ⊢ 𝐵 = (Base‘𝐹) |
| Ref | Expression |
|---|---|
| lmodsn0 | ⊢ (𝑊 ∈ LMod → 𝐵 ≠ ∅) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lmodsn0.f | . . 3 ⊢ 𝐹 = (Scalar‘𝑊) | |
| 2 | 1 | lmodfgrp 21150 | . 2 ⊢ (𝑊 ∈ LMod → 𝐹 ∈ Grp) |
| 3 | lmodsn0.b | . . 3 ⊢ 𝐵 = (Base‘𝐹) | |
| 4 | 3 | grpbn0 19183 | . 2 ⊢ (𝐹 ∈ Grp → 𝐵 ≠ ∅) |
| 5 | 2, 4 | syl 18 | 1 ⊢ (𝑊 ∈ LMod → 𝐵 ≠ ∅) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 ∈ wcel 2144 ≠ wne 2955 ∅c0 4278 ‘cfv 6539 Basecbs 17393 Scalarcsca 17437 Grpcgrp 19150 LModclmod 21141 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pr 5390 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-ss 3896 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5545 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-iota 6494 df-fun 6541 df-fv 6547 df-riota 7378 df-ov 7424 df-0g 17618 df-mgm 18822 df-sgrp 18914 df-mnd 18930 df-grp 19153 df-ring 20467 df-lmod 21143 |
| This theorem is used by: lindsrng01 49674 |
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