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Theorem nrgring 24639
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 2734 . . 3 (norm‘𝑅) = (norm‘𝑅)
2 eqid 2734 . . 3 (AbsVal‘𝑅) = (AbsVal‘𝑅)
31, 2nrgabv 24637 . 2 (𝑅 ∈ NrmRing → (norm‘𝑅) ∈ (AbsVal‘𝑅))
42abvrcl 20787 . 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 2107  cfv 6542  Ringcrg 20203  AbsValcabv 20782  normcnm 24552  NrmRingcnrg 24555
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1794  ax-4 1808  ax-5 1909  ax-6 1966  ax-7 2006  ax-8 2109  ax-9 2117  ax-10 2140  ax-11 2156  ax-12 2176  ax-ext 2706  ax-sep 5278  ax-nul 5288  ax-pr 5414
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1542  df-fal 1552  df-ex 1779  df-nf 1783  df-sb 2064  df-mo 2538  df-eu 2567  df-clab 2713  df-cleq 2726  df-clel 2808  df-nfc 2884  df-ral 3051  df-rex 3060  df-rab 3421  df-v 3466  df-dif 3936  df-un 3938  df-in 3940  df-ss 3950  df-nul 4316  df-if 4508  df-sn 4609  df-pr 4611  df-op 4615  df-uni 4890  df-br 5126  df-opab 5188  df-mpt 5208  df-xp 5673  df-rel 5674  df-cnv 5675  df-dm 5677  df-rn 5678  df-res 5679  df-ima 5680  df-iota 6495  df-fv 6550  df-abv 20783  df-nrg 24561
This theorem is referenced by:  nrgdsdi  24641  nrgdsdir  24642  nmdvr  24646  nrgtgp  24648  rlmnlm  24664  nrgtrg  24666  nrginvrcnlem  24667  nrginvrcn  24668  nrgtdrg  24669  rlmbn  25350  iistmd  33842  zrhnm  33909  cnzh  33910  rezh  33911
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