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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 21058 | . 2 ⊢ (𝑊 ∈ LMod → 𝐹 ∈ Ring) |
| 3 | ringgrp 20383 | . 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 1570 ∈ wcel 2145 ‘cfv 6537 Scalarcsca 17351 Grpcgrp 19063 Ringcrg 20378 LModclmod 21050 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2734 ax-nul 5267 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2741 df-cleq 2754 df-clel 2837 df-ne 2958 df-ral 3079 df-rab 3415 df-v 3455 df-sbc 3743 df-dif 3905 df-un 3907 df-ss 3919 df-nul 4283 df-if 4486 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-br 5108 df-iota 6493 df-fv 6545 df-ov 7420 df-ring 20380 df-lmod 21052 |
| This theorem is used by: lmodacl 21062 lmodsn0 21064 lmodvneg1 21095 lssvsubcl 21134 lspsnneg 21196 lvecvscan2 21305 lspexch 21322 lspsolvlem 21335 ipsubdir 21861 ipsubdi 21862 ip2eq 21872 ocvlss 21891 lsmcss 21911 islindf4 22057 ascl0 22105 clmfgrp 25305 lmodvslmhm 33498 lflmul 39949 lkrlss 39976 eqlkr 39980 lkrlsp 39983 lshpkrlem1 39991 ldualvsubval 40038 lcfrlem1 42423 lcdvsubval 42499 lmodvsmdi 49317 lincsum 49367 lincsumcl 49369 lincext1 49392 lindslinindsimp1 49395 lindslinindimp2lem1 49396 lindslinindsimp2lem5 49400 ldepsprlem 49410 ldepspr 49411 lincresunit3lem3 49412 lincresunit3lem1 49417 lincresunit3lem2 49418 lincresunit3 49419 |
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