Theorem subrngsubg 14349

Description: A subring is a subgroup. (Contributed by AV, 14-Feb-2025.)

Assertion

Ref	Expression
subrngsubg	|- ( A e. (SubRng ` R ) -> A e. (SubGrp ` R ) )

Proof of Theorem subrngsubg

Step	Hyp	Ref	Expression
1		subrngrcl 14348	. . 3 |- ( A e. (SubRng ` R ) -> R e. Rng )
2		rnggrp 14082	. . 3 |- ( R e. Rng -> R e. Grp )
3	1, 2	syl 14	. 2 |- ( A e. (SubRng ` R ) -> R e. Grp )
4		eqid 2232	. . 3 |- ( Base ` R ) = ( Base ` R )
5	4	subrngss 14345	. 2 |- ( A e. (SubRng ` R ) -> A C_ ( Base ` R ) )
6		eqid 2232	. . . 4 |- ( R ↾s A ) = ( R ↾s A )
7	6	subrngrng 14347	. . 3 |- ( A e. (SubRng ` R ) -> ( R ↾s A ) e. Rng )
8		rnggrp 14082	. . 3 |- ( ( R ↾s A ) e. Rng -> ( R ↾s A ) e. Grp )
9	7, 8	syl 14	. 2 |- ( A e. (SubRng ` R ) -> ( R ↾s A ) e. Grp )
10	4	issubg 13890	. 2 |- ( A e. (SubGrp ` R ) <-> ( R e. Grp /\ A C_ ( Base ` R ) /\ ( R ↾s A ) e. Grp ) )
11	3, 5, 9, 10	syl3anbrc 1208	1 |- ( A e. (SubRng ` R ) -> A e. (SubGrp ` R ) )

Syntax hints:   -> wi 4   e. wcel 2203   C_ wss 3211   ` cfv 5352  (class class class)co 6050   Basecbs 13212   ↾_s cress 13213   Grpcgrp 13713  SubGrpcsubg 13884  Rngcrng 14076  SubRngcsubrng 14342

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-13 2205  ax-14 2206  ax-ext 2214  ax-sep 4228  ax-pow 4287  ax-pr 4322  ax-un 4554  ax-cnex 8218  ax-resscn 8219  ax-1re 8221  ax-addrcl 8224

This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-nf 1510  df-sb 1812  df-eu 2083  df-mo 2084  df-clab 2219  df-cleq 2225  df-clel 2228  df-nfc 2373  df-ral 2525  df-rex 2526  df-rab 2529  df-v 2815  df-sbc 3043  df-csb 3139  df-un 3215  df-in 3217  df-ss 3224  df-pw 3671  df-sn 3695  df-pr 3696  df-op 3698  df-uni 3915  df-int 3950  df-br 4110  df-opab 4172  df-mpt 4173  df-id 4414  df-xp 4755  df-rel 4756  df-cnv 4757  df-co 4758  df-dm 4759  df-rn 4760  df-res 4761  df-ima 4762  df-iota 5312  df-fun 5354  df-fn 5355  df-fv 5360  df-ov 6053  df-inn 9238  df-2 9296  df-3 9297  df-ndx 13215  df-slot 13216  df-base 13218  df-plusg 13303  df-mulr 13304  df-subg 13887  df-abl 14004  df-rng 14077  df-subrng 14343

This theorem is referenced by:  subrngringnsg  14350  subrngbas  14351  subrng0  14352  subrngacl  14353  issubrng2  14355  subrngintm  14357  rng2idl0  14667  rng2idlsubg0  14670