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| Mirrors > Home > MPE Home > Th. List > nrgngp | Structured version Visualization version GIF version | ||
| Description: A normed ring is a normed group. (Contributed by Mario Carneiro, 4-Oct-2015.) |
| Ref | Expression |
|---|---|
| nrgngp | ⊢ (𝑅 ∈ NrmRing → 𝑅 ∈ NrmGrp) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2762 | . . 3 ⊢ (norm‘𝑅) = (norm‘𝑅) | |
| 2 | eqid 2762 | . . 3 ⊢ (AbsVal‘𝑅) = (AbsVal‘𝑅) | |
| 3 | 1, 2 | isnrg 24828 | . 2 ⊢ (𝑅 ∈ NrmRing ↔ (𝑅 ∈ NrmGrp ∧ (norm‘𝑅) ∈ (AbsVal‘𝑅))) |
| 4 | 3 | simplbi 501 | 1 ⊢ (𝑅 ∈ NrmRing → 𝑅 ∈ NrmGrp) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2142 ‘cfv 6536 AbsValcabv 20922 normcnm 24744 NrmGrpcngp 24745 NrmRingcnrg 24747 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-8 2144 ax-9 2152 ax-ext 2734 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1104 df-tru 1572 df-fal 1582 df-ex 1809 df-sb 2096 df-clab 2741 df-cleq 2754 df-clel 2837 df-rab 3416 df-v 3456 df-dif 3907 df-un 3909 df-ss 3921 df-nul 4286 df-if 4487 df-sn 4589 df-pr 4591 df-op 4595 df-uni 4872 df-br 5109 df-iota 6492 df-fv 6544 df-nrg 24753 |
| This theorem is used by: nrgdsdi 24833 nrgdsdir 24834 unitnmn0 24836 nminvr 24837 nmdvr 24838 nrgtgp 24840 subrgnrg 24841 nlmngp2 24848 sranlm 24852 nrginvrcnlem 24859 nrginvrcn 24860 cnzh 34367 rezh 34368 qqhcn 34390 qqhucn 34391 rrhcn 34396 rrhf 34397 rrexttps 34405 rrexthaus 34406 |
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