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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 2823 | . . 3 ⊢ (norm‘𝑅) = (norm‘𝑅) | |
2 | eqid 2823 | . . 3 ⊢ (AbsVal‘𝑅) = (AbsVal‘𝑅) | |
3 | 1, 2 | nrgabv 23272 | . 2 ⊢ (𝑅 ∈ NrmRing → (norm‘𝑅) ∈ (AbsVal‘𝑅)) |
4 | 2 | abvrcl 19594 | . 2 ⊢ ((norm‘𝑅) ∈ (AbsVal‘𝑅) → 𝑅 ∈ Ring) |
5 | 3, 4 | syl 17 | 1 ⊢ (𝑅 ∈ NrmRing → 𝑅 ∈ Ring) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2114 ‘cfv 6357 Ringcrg 19299 AbsValcabv 19589 normcnm 23188 NrmRingcnrg 23191 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-sep 5205 ax-nul 5212 ax-pow 5268 ax-pr 5332 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ral 3145 df-rex 3146 df-rab 3149 df-v 3498 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-sn 4570 df-pr 4572 df-op 4576 df-uni 4841 df-br 5069 df-opab 5131 df-mpt 5149 df-xp 5563 df-rel 5564 df-cnv 5565 df-dm 5567 df-rn 5568 df-res 5569 df-ima 5570 df-iota 6316 df-fv 6365 df-abv 19590 df-nrg 23197 |
This theorem is referenced by: nrgdsdi 23276 nrgdsdir 23277 nmdvr 23281 nrgtgp 23283 rlmnlm 23299 nrgtrg 23301 nrginvrcnlem 23302 nrginvrcn 23303 nrgtdrg 23304 rlmbn 23966 iistmd 31147 zrhnm 31212 cnzh 31213 rezh 31214 |
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