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Theorem nrgring 23266
Description: A normed ring is a ring. (Contributed by Mario Carneiro, 4-Oct-2015.)
Assertion
Ref Expression
nrgring (𝑅 ∈ NrmRing → 𝑅 ∈ Ring)

Proof of Theorem nrgring
StepHypRef Expression
1 eqid 2821 . . 3 (norm‘𝑅) = (norm‘𝑅)
2 eqid 2821 . . 3 (AbsVal‘𝑅) = (AbsVal‘𝑅)
31, 2nrgabv 23264 . 2 (𝑅 ∈ NrmRing → (norm‘𝑅) ∈ (AbsVal‘𝑅))
42abvrcl 19586 . 2 ((norm‘𝑅) ∈ (AbsVal‘𝑅) → 𝑅 ∈ Ring)
53, 4syl 17 1 (𝑅 ∈ NrmRing → 𝑅 ∈ Ring)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wcel 2110  cfv 6350  Ringcrg 19291  AbsValcabv 19581  normcnm 23180  NrmRingcnrg 23183
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1907  ax-6 1966  ax-7 2011  ax-8 2112  ax-9 2120  ax-10 2141  ax-11 2156  ax-12 2172  ax-ext 2793  ax-sep 5196  ax-nul 5203  ax-pow 5259  ax-pr 5322
This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1085  df-tru 1536  df-ex 1777  df-nf 1781  df-sb 2066  df-mo 2618  df-eu 2650  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ral 3143  df-rex 3144  df-rab 3147  df-v 3497  df-dif 3939  df-un 3941  df-in 3943  df-ss 3952  df-nul 4292  df-if 4468  df-sn 4562  df-pr 4564  df-op 4568  df-uni 4833  df-br 5060  df-opab 5122  df-mpt 5140  df-xp 5556  df-rel 5557  df-cnv 5558  df-dm 5560  df-rn 5561  df-res 5562  df-ima 5563  df-iota 6309  df-fv 6358  df-abv 19582  df-nrg 23189
This theorem is referenced by:  nrgdsdi  23268  nrgdsdir  23269  nmdvr  23273  nrgtgp  23275  rlmnlm  23291  nrgtrg  23293  nrginvrcnlem  23294  nrginvrcn  23295  nrgtdrg  23296  rlmbn  23958  iistmd  31140  zrhnm  31205  cnzh  31206  rezh  31207
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