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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 33270 | . 2 ⊢ (𝑊 ∈ SLMod → 𝐹 ∈ SRing) |
| 3 | srgmnd 20129 | . 2 ⊢ (𝐹 ∈ SRing → 𝐹 ∈ Mnd) | |
| 4 | slmdsn0.b | . . 3 ⊢ 𝐵 = (Base‘𝐹) | |
| 5 | 4 | mndbn0 18679 | . 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 1542 ∈ wcel 2114 ≠ wne 2933 ∅c0 4286 ‘cfv 6493 Basecbs 17140 Scalarcsca 17184 Mndcmnd 18663 SRingcsrg 20125 SLModcslmd 33263 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5242 ax-nul 5252 ax-pr 5378 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3062 df-rmo 3351 df-reu 3352 df-rab 3401 df-v 3443 df-sbc 3742 df-dif 3905 df-un 3907 df-ss 3919 df-nul 4287 df-if 4481 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-br 5100 df-opab 5162 df-mpt 5181 df-id 5520 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-iota 6449 df-fun 6495 df-fv 6501 df-riota 7317 df-ov 7363 df-0g 17365 df-mgm 18569 df-sgrp 18648 df-mnd 18664 df-cmn 19715 df-srg 20126 df-slmd 33264 |
| This theorem is referenced by: (None) |
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