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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 33149 | . 2 ⊢ (𝑊 ∈ SLMod → 𝐹 ∈ SRing) |
| 3 | srgmnd 20075 | . 2 ⊢ (𝐹 ∈ SRing → 𝐹 ∈ Mnd) | |
| 4 | slmdsn0.b | . . 3 ⊢ 𝐵 = (Base‘𝐹) | |
| 5 | 4 | mndbn0 18624 | . 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 1540 ∈ wcel 2109 ≠ wne 2925 ∅c0 4284 ‘cfv 6482 Basecbs 17120 Scalarcsca 17164 Mndcmnd 18608 SRingcsrg 20071 SLModcslmd 33142 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-sep 5235 ax-nul 5245 ax-pr 5371 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-ral 3045 df-rex 3054 df-rmo 3343 df-reu 3344 df-rab 3395 df-v 3438 df-sbc 3743 df-dif 3906 df-un 3908 df-ss 3920 df-nul 4285 df-if 4477 df-sn 4578 df-pr 4580 df-op 4584 df-uni 4859 df-br 5093 df-opab 5155 df-mpt 5174 df-id 5514 df-xp 5625 df-rel 5626 df-cnv 5627 df-co 5628 df-dm 5629 df-iota 6438 df-fun 6484 df-fv 6490 df-riota 7306 df-ov 7352 df-0g 17345 df-mgm 18514 df-sgrp 18593 df-mnd 18609 df-cmn 19661 df-srg 20072 df-slmd 33143 |
| This theorem is referenced by: (None) |
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