Theorem subrgrcl 20576

Description: Reverse closure for a subring predicate. (Contributed by Mario Carneiro, 3-Dec-2014.)

Assertion

Ref	Expression
subrgrcl	⊢ (𝐴 ∈ (SubRing‘𝑅) → 𝑅 ∈ Ring)

Proof of Theorem subrgrcl

Step	Hyp	Ref	Expression
1		eqid 2737	. . . 4 ⊢ (Base‘𝑅) = (Base‘𝑅)
2		eqid 2737	. . . 4 ⊢ (1r‘𝑅) = (1r‘𝑅)
3	1, 2	issubrg 20571	. . 3 ⊢ (𝐴 ∈ (SubRing‘𝑅) ↔ ((𝑅 ∈ Ring ∧ (𝑅 ↾s 𝐴) ∈ Ring) ∧ (𝐴 ⊆ (Base‘𝑅) ∧ (1r‘𝑅) ∈ 𝐴)))
4	3	simplbi 497	. 2 ⊢ (𝐴 ∈ (SubRing‘𝑅) → (𝑅 ∈ Ring ∧ (𝑅 ↾s 𝐴) ∈ Ring))
5	4	simpld 494	1 ⊢ (𝐴 ∈ (SubRing‘𝑅) → 𝑅 ∈ Ring)

Syntax hints:   → wi 4   ∧ wa 395   ∈ wcel 2108   ⊆ wss 3951  ‘cfv 6561  (class class class)co 7431  Basecbs 17247   ↾_s cress 17274  1_rcur 20178  Ringcrg 20230  SubRingcsubrg 20569

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 2007  ax-8 2110  ax-9 2118  ax-10 2141  ax-11 2157  ax-12 2177  ax-ext 2708  ax-sep 5296  ax-nul 5306  ax-pow 5365  ax-pr 5432

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2065  df-mo 2540  df-eu 2569  df-clab 2715  df-cleq 2729  df-clel 2816  df-nfc 2892  df-ne 2941  df-ral 3062  df-rex 3071  df-rab 3437  df-v 3482  df-dif 3954  df-un 3956  df-in 3958  df-ss 3968  df-nul 4334  df-if 4526  df-pw 4602  df-sn 4627  df-pr 4629  df-op 4633  df-uni 4908  df-br 5144  df-opab 5206  df-mpt 5226  df-id 5578  df-xp 5691  df-rel 5692  df-cnv 5693  df-co 5694  df-dm 5695  df-rn 5696  df-res 5697  df-ima 5698  df-iota 6514  df-fun 6563  df-fv 6569  df-ov 7434  df-subrg 20570

This theorem is referenced by:  subrgsubg  20577  subrg1  20582  subrgsubm  20585  subrginv  20588  subrgunit  20590  subrgugrp  20591  opprsubrg  20593  subrgint  20595  subsubrg  20598  resrhm2b  20602  sralmod  21194  subrgpsr  21998  subrgmpl  22050  subrgmvr  22051  subrgmvrf  22052  subrgascl  22090  subrgasclcl  22091  asclply1subcl  22378  subrdom  33288  idlinsubrg  33459  ressply10g  33592  ressply1invg  33594