MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  nrgring Structured version   Visualization version   GIF version

Theorem nrgring 24890
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 2760 . . 3 (norm‘𝑅) = (norm‘𝑅)
2 eqid 2760 . . 3 (AbsVal‘𝑅) = (AbsVal‘𝑅)
31, 2nrgabv 24888 . 2 (𝑅 ∈ NrmRing → (norm‘𝑅) ∈ (AbsVal‘𝑅))
42abvrcl 20980 . 2 ((norm‘𝑅) ∈ (AbsVal‘𝑅) → 𝑅 ∈ Ring)
53, 4syl 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
  Copyright terms: Public domain W3C validator