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| Mirrors > Home > MPE Home > Th. List > nrgring | Structured version Visualization version GIF version | ||
| Description: A normed ring is a ring. (Contributed by Mario Carneiro, 4-Oct-2015.) |
| Ref | Expression |
|---|---|
| nrgring | ⊢ (𝑅 ∈ NrmRing → 𝑅 ∈ Ring) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2769 | . . 3 ⊢ (norm‘𝑅) = (norm‘𝑅) | |
| 2 | eqid 2769 | . . 3 ⊢ (AbsVal‘𝑅) = (AbsVal‘𝑅) | |
| 3 | 1, 2 | nrgabv 24786 | . 2 ⊢ (𝑅 ∈ NrmRing → (norm‘𝑅) ∈ (AbsVal‘𝑅)) |
| 4 | 2 | abvrcl 20893 | . 2 ⊢ ((norm‘𝑅) ∈ (AbsVal‘𝑅) → 𝑅 ∈ Ring) |
| 5 | 3, 4 | syl 18 | 1 ⊢ (𝑅 ∈ NrmRing → 𝑅 ∈ Ring) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2149 ‘cfv 6537 Ringcrg 20314 AbsValcabv 20888 normcnm 24701 NrmRingcnrg 24704 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-sep 5261 ax-nul 5271 ax-pr 5405 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-rab 3424 df-v 3465 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4295 df-if 4493 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-br 5114 df-opab 5178 df-mpt 5197 df-xp 5668 df-rel 5669 df-cnv 5670 df-dm 5672 df-rn 5673 df-res 5674 df-ima 5675 df-iota 6493 df-fv 6545 df-abv 20889 df-nrg 24710 |
| This theorem is referenced by: nrgdsdi 24790 nrgdsdir 24791 nmdvr 24795 nrgtgp 24797 rlmnlm 24813 nrgtrg 24815 nrginvrcnlem 24816 nrginvrcn 24817 nrgtdrg 24818 rlmbn 25488 iistmd 34236 zrhnm 34301 cnzh 34302 rezh 34303 |
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