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Mirrors > Home > MPE Home > Th. List > Mathboxes > slmdsn0 | Structured version Visualization version GIF version |
Description: The set of scalars in a semimodule is nonempty. (Contributed by Thierry Arnoux, 1-Apr-2018.) (Proof shortened by AV, 10-Jan-2023.) |
Ref | Expression |
---|---|
slmdsn0.f | ⊢ 𝐹 = (Scalar‘𝑊) |
slmdsn0.b | ⊢ 𝐵 = (Base‘𝐹) |
Ref | Expression |
---|---|
slmdsn0 | ⊢ (𝑊 ∈ SLMod → 𝐵 ≠ ∅) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | slmdsn0.f | . . 3 ⊢ 𝐹 = (Scalar‘𝑊) | |
2 | 1 | slmdsrg 30830 | . 2 ⊢ (𝑊 ∈ SLMod → 𝐹 ∈ SRing) |
3 | srgmnd 19253 | . 2 ⊢ (𝐹 ∈ SRing → 𝐹 ∈ Mnd) | |
4 | slmdsn0.b | . . 3 ⊢ 𝐵 = (Base‘𝐹) | |
5 | 4 | mndbn0 17921 | . 2 ⊢ (𝐹 ∈ Mnd → 𝐵 ≠ ∅) |
6 | 2, 3, 5 | 3syl 18 | 1 ⊢ (𝑊 ∈ SLMod → 𝐵 ≠ ∅) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1533 ∈ wcel 2110 ≠ wne 3016 ∅c0 4290 ‘cfv 6349 Basecbs 16477 Scalarcsca 16562 Mndcmnd 17905 SRingcsrg 19249 SLModcslmd 30823 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5195 ax-nul 5202 ax-pow 5258 ax-pr 5321 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-ral 3143 df-rex 3144 df-reu 3145 df-rmo 3146 df-rab 3147 df-v 3496 df-sbc 3772 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-if 4467 df-sn 4561 df-pr 4563 df-op 4567 df-uni 4832 df-br 5059 df-opab 5121 df-mpt 5139 df-id 5454 df-xp 5555 df-rel 5556 df-cnv 5557 df-co 5558 df-dm 5559 df-iota 6308 df-fun 6351 df-fv 6357 df-riota 7108 df-ov 7153 df-0g 16709 df-mgm 17846 df-sgrp 17895 df-mnd 17906 df-cmn 18902 df-srg 19250 df-slmd 30824 |
This theorem is referenced by: (None) |
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