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

Theorem domnnzr 20683
Description: A domain is a nonzero ring. (Contributed by Mario Carneiro, 28-Mar-2015.)
Assertion
Ref Expression
domnnzr (𝑅 ∈ Domn → 𝑅 ∈ NzRing)

Proof of Theorem domnnzr
Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 eqid 2736 . . 3 (Base‘𝑅) = (Base‘𝑅)
2 eqid 2736 . . 3 (.r𝑅) = (.r𝑅)
3 eqid 2736 . . 3 (0g𝑅) = (0g𝑅)
41, 2, 3isdomn 20682 . 2 (𝑅 ∈ Domn ↔ (𝑅 ∈ NzRing ∧ ∀𝑥 ∈ (Base‘𝑅)∀𝑦 ∈ (Base‘𝑅)((𝑥(.r𝑅)𝑦) = (0g𝑅) → (𝑥 = (0g𝑅) ∨ 𝑦 = (0g𝑅)))))
54simplbi 496 1 (𝑅 ∈ Domn → 𝑅 ∈ NzRing)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wo 848   = wceq 1542  wcel 2114  wral 3051  cfv 6498  (class class class)co 7367  Basecbs 17179  .rcmulr 17221  0gc0g 17402  NzRingcnzr 20489  Domncdomn 20669
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-ext 2708  ax-nul 5241
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-sb 2069  df-clab 2715  df-cleq 2728  df-clel 2811  df-ne 2933  df-ral 3052  df-rab 3390  df-v 3431  df-sbc 3729  df-dif 3892  df-un 3894  df-ss 3906  df-nul 4274  df-if 4467  df-sn 4568  df-pr 4570  df-op 4574  df-uni 4851  df-br 5086  df-iota 6454  df-fv 6506  df-ov 7370  df-domn 20672
This theorem is referenced by:  domnring  20684  isdomn4  20693  fidomndrng  20750  abvn0b  20813  domnchr  21512  znidomb  21541  nrgdomn  24636  ply1domn  26089  fta1glem1  26133  fta1glem2  26134  fta1b  26137  idomrootle  26138  lgsqrlem4  27312  domnprodn0  33336  domnprodeq0  33337  subrdom  33346  fracfld  33369  qsidomlem1  33512  1arithufdlem1  33604  ply1dg1rt  33640  deg1prod  33643  vietadeg1  33722  assafld  33781  idomnnzpownz  42571  idomnnzgmulnz  42572  deg1gprod  42579  deg1pow  42580  domnexpgn0cl  42968  fiabv  42981  deg1mhm  43628
  Copyright terms: Public domain W3C validator