Theorem subrgrcl 20605

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 2761	. . . 4 ⊢ (Base‘𝑅) = (Base‘𝑅)
2		eqid 2761	. . . 4 ⊢ (1r‘𝑅) = (1r‘𝑅)
3	1, 2	issubrg 20600	. . 3 ⊢ (𝐴 ∈ (SubRing‘𝑅) ↔ ((𝑅 ∈ Ring ∧ (𝑅 ↾s 𝐴) ∈ Ring) ∧ (𝐴 ⊆ (Base‘𝑅) ∧ (1r‘𝑅) ∈ 𝐴)))
4	3	simplbi 500	. 2 ⊢ (𝐴 ∈ (SubRing‘𝑅) → (𝑅 ∈ Ring ∧ (𝑅 ↾s 𝐴) ∈ Ring))
5	4	simpld 498	1 ⊢ (𝐴 ∈ (SubRing‘𝑅) → 𝑅 ∈ Ring)

Syntax hints:   → wi 4   ∧ wa 399   ∈ wcel 2141   ⊆ wss 3904  ‘cfv 6517  (class class class)co 7392  Basecbs 17228   ↾_s cress 17249  1_rcur 20210  Ringcrg 20262  SubRingcsubrg 20598

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1814  ax-4 1828  ax-5 1929  ax-6 1986  ax-7 2027  ax-8 2143  ax-9 2151  ax-10 2174  ax-11 2190  ax-12 2211  ax-ext 2733  ax-sep 5245  ax-nul 5255  ax-pow 5321  ax-pr 5389

This theorem depends on definitions:  df-bi 209  df-an 400  df-or 859  df-3an 1099  df-tru 1562  df-fal 1572  df-ex 1799  df-nf 1803  df-sb 2090  df-mo 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-nfc 2910  df-ne 2957  df-ral 3076  df-rex 3086  df-rab 3414  df-v 3455  df-dif 3907  df-un 3909  df-in 3911  df-ss 3921  df-nul 4286  df-if 4480  df-pw 4556  df-sn 4582  df-pr 4584  df-op 4588  df-uni 4865  df-br 5100  df-opab 5162  df-mpt 5181  df-id 5540  df-xp 5651  df-rel 5652  df-cnv 5653  df-co 5654  df-dm 5655  df-rn 5656  df-res 5657  df-ima 5658  df-iota 6473  df-fun 6519  df-fv 6525  df-ov 7395  df-subrg 20599

This theorem is referenced by:  subrgsubg  20606  subrg1  20611  subrgsubm  20614  subrginv  20617  subrgunit  20619  subrgugrp  20620  opprsubrg  20622  subrgint  20624  subsubrg  20627  resrhm2b  20631  sralmod  21234  subrgpsr  22009  subrgmpl  22064  subrgmvr  22066  subrgmvrf  22067  subrgascl  22099  subrgasclcl  22100  asclply1subcl  22417  subrdom  33430  idlinsubrg  33578  ressply10g  33724  ressply1invg  33726