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| Mirrors > Home > ILE Home > Th. List > lmodsn0 | GIF version | ||
| Description: The set of scalars in a left module is nonempty. It is also inhabited, by lmod0cl 14511. (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 14493 | . 2 ⊢ (𝑊 ∈ LMod → 𝐹 ∈ Grp) |
| 3 | lmodsn0.b | . . 3 ⊢ 𝐵 = (Base‘𝐹) | |
| 4 | 3 | grpbn0 13764 | . 2 ⊢ (𝐹 ∈ Grp → 𝐵 ≠ ∅) |
| 5 | 2, 4 | syl 14 | 1 ⊢ (𝑊 ∈ LMod → 𝐵 ≠ ∅) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1398 ∈ wcel 2205 ≠ wne 2414 ∅c0 3510 ‘cfv 5354 Basecbs 13233 Scalarcsca 13314 Grpcgrp 13734 LModclmod 14484 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2207 ax-14 2208 ax-ext 2216 ax-sep 4230 ax-pow 4289 ax-pr 4324 ax-un 4556 ax-cnex 8223 ax-resscn 8224 ax-1re 8226 ax-addrcl 8229 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ne 2415 df-ral 2527 df-rex 2528 df-reu 2529 df-rmo 2530 df-rab 2531 df-v 2817 df-sbc 3045 df-csb 3141 df-dif 3215 df-un 3217 df-in 3219 df-ss 3226 df-nul 3511 df-pw 3673 df-sn 3697 df-pr 3698 df-op 3700 df-uni 3917 df-int 3952 df-br 4112 df-opab 4174 df-mpt 4175 df-id 4416 df-xp 4757 df-rel 4758 df-cnv 4759 df-co 4760 df-dm 4761 df-rn 4762 df-res 4763 df-iota 5314 df-fun 5356 df-fn 5357 df-fv 5362 df-riota 6005 df-ov 6055 df-inn 9243 df-2 9301 df-3 9302 df-4 9303 df-5 9304 df-6 9305 df-ndx 13236 df-slot 13237 df-base 13239 df-plusg 13324 df-mulr 13325 df-sca 13327 df-vsca 13328 df-0g 13492 df-mgm 13590 df-sgrp 13636 df-mnd 13651 df-grp 13737 df-ring 14163 df-lmod 14486 |
| This theorem is referenced by: (None) |
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