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| Mirrors > Home > MPE Home > Th. List > lmodfgrp | Structured version Visualization version GIF version | ||
| Description: The scalar component of a left module is an additive group. (Contributed by NM, 8-Dec-2013.) (Revised by Mario Carneiro, 19-Jun-2014.) |
| Ref | Expression |
|---|---|
| lmodring.1 | ⊢ 𝐹 = (Scalar‘𝑊) |
| Ref | Expression |
|---|---|
| lmodfgrp | ⊢ (𝑊 ∈ LMod → 𝐹 ∈ Grp) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lmodring.1 | . . 3 ⊢ 𝐹 = (Scalar‘𝑊) | |
| 2 | 1 | lmodring 21148 | . 2 ⊢ (𝑊 ∈ LMod → 𝐹 ∈ Ring) |
| 3 | ringgrp 20469 | . 2 ⊢ (𝐹 ∈ Ring → 𝐹 ∈ Grp) | |
| 4 | 2, 3 | syl 18 | 1 ⊢ (𝑊 ∈ LMod → 𝐹 ∈ Grp) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 ∈ wcel 2144 ‘cfv 6538 Scalarcsca 17436 Grpcgrp 19149 Ringcrg 20464 LModclmod 21140 |
| 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-ext 2732 ax-nul 5259 |
| 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-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-ne 2956 df-ral 3077 df-rab 3413 df-v 3452 df-sbc 3739 df-ss 3896 df-dif 4047 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-iota 6494 df-fv 6546 df-ov 7423 df-ring 20466 df-lmod 21142 |
| This theorem is used by: lmodacl 21152 lmodsn0 21154 lmodvneg1 21185 lssvsubcl 21224 lspsnneg 21286 lvecvscan2 21395 lspexch 21412 lspsolvlem 21425 ipsubdir 21953 ipsubdi 21954 ip2eq 21964 ocvlss 21983 lsmcss 22003 islindf4 22149 ascl0 22197 clmfgrp 25397 lmodvslmhm 33657 lflmul 40218 lkrlss 40245 eqlkr 40249 lkrlsp 40252 lshpkrlem1 40260 ldualvsubval 40307 lcfrlem1 42692 lcdvsubval 42768 lmodvsmdi 49584 lincsum 49634 lincsumcl 49636 lincext1 49659 lindslinindsimp1 49662 lindslinindimp2lem1 49663 lindslinindsimp2lem5 49667 ldepsprlem 49677 ldepspr 49678 lincresunit3lem3 49679 lincresunit3lem1 49684 lincresunit3lem2 49685 lincresunit3 49686 |
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