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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 2760 | . . 3 ⊢ (norm‘𝑅) = (norm‘𝑅) | |
| 2 | eqid 2760 | . . 3 ⊢ (AbsVal‘𝑅) = (AbsVal‘𝑅) | |
| 3 | 1, 2 | nrgabv 24888 | . 2 ⊢ (𝑅 ∈ NrmRing → (norm‘𝑅) ∈ (AbsVal‘𝑅)) |
| 4 | 2 | abvrcl 20980 | . 2 ⊢ ((norm‘𝑅) ∈ (AbsVal‘𝑅) → 𝑅 ∈ Ring) |
| 5 | 3, 4 | syl 18 | 1 ⊢ (𝑅 ∈ NrmRing → 𝑅 ∈ Ring) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2145 ‘cfv 6533 Ringcrg 20373 AbsValcabv 20975 normcnm 24803 NrmRingcnrg 24806 |
| 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-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5251 ax-nul 5263 ax-pr 5398 |
| 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-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-rab 3413 df-v 3452 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-opab 5168 df-mpt 5187 df-xp 5661 df-rel 5662 df-cnv 5663 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-iota 6489 df-fv 6541 df-abv 20976 df-nrg 24812 |
| This theorem is used by: nrgdsdi 24892 nrgdsdir 24893 nmdvr 24897 nrgtgp 24899 rlmnlm 24915 nrgtrg 24917 nrginvrcnlem 24918 nrginvrcn 24919 nrgtdrg 24920 rlmbn 25590 iistmd 34413 zrhnm 34478 cnzh 34479 rezh 34480 |
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