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

Theorem ringacl 20181
Description: Closure of the addition operation of a ring. (Contributed by Mario Carneiro, 14-Jan-2014.)
Hypotheses
Ref Expression
ringacl.b 𝐵 = (Base‘𝑅)
ringacl.p + = (+g𝑅)
Assertion
Ref Expression
ringacl ((𝑅 ∈ Ring ∧ 𝑋𝐵𝑌𝐵) → (𝑋 + 𝑌) ∈ 𝐵)

Proof of Theorem ringacl
StepHypRef Expression
1 ringgrp 20141 . 2 (𝑅 ∈ Ring → 𝑅 ∈ Grp)
2 ringacl.b . . 3 𝐵 = (Base‘𝑅)
3 ringacl.p . . 3 + = (+g𝑅)
42, 3grpcl 18838 . 2 ((𝑅 ∈ Grp ∧ 𝑋𝐵𝑌𝐵) → (𝑋 + 𝑌) ∈ 𝐵)
51, 4syl3an1 1163 1 ((𝑅 ∈ Ring ∧ 𝑋𝐵𝑌𝐵) → (𝑋 + 𝑌) ∈ 𝐵)
Colors of variables: wff setvar class
Syntax hints:  wi 4  w3a 1086   = wceq 1540  wcel 2109  cfv 6486  (class class class)co 7353  Basecbs 17138  +gcplusg 17179  Grpcgrp 18830  Ringcrg 20136
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2008  ax-8 2111  ax-9 2119  ax-ext 2701  ax-nul 5248
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-sb 2066  df-clab 2708  df-cleq 2721  df-clel 2803  df-ne 2926  df-ral 3045  df-rex 3054  df-rab 3397  df-v 3440  df-sbc 3745  df-dif 3908  df-un 3910  df-ss 3922  df-nul 4287  df-if 4479  df-sn 4580  df-pr 4582  df-op 4586  df-uni 4862  df-br 5096  df-iota 6442  df-fv 6494  df-ov 7356  df-mgm 18532  df-sgrp 18611  df-mnd 18627  df-grp 18833  df-ring 20138
This theorem is referenced by:  ringcomlem  20182  ringcom  20183  ringlghm  20215  ringrghm  20216  imasring  20233  qusring2  20237  cntzsubr  20509  srngadd  20754  issrngd  20758  lmodprop2d  20845  prdslmodd  20890  rhmpreimaidl  21202  frobrhm  21500  ip2subdi  21569  psrlmod  21885  mpfind  22030  coe1add  22166  mat1ghm  22386  scmatghm  22436  mdetrlin2  22510  mdetunilem5  22519  cpmatacl  22619  mdegaddle  25995  deg1addle2  26023  deg1add  26024  ply1divex  26058  deg1addlt  33544  dvhlveclem  41090  baerlem3lem1  41689  mendlmod  43165  cznrng  48249  lmod1lem3  48478
  Copyright terms: Public domain W3C validator