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| Mirrors > Home > ILE Home > Th. List > subrngsubg | GIF version | ||
| Description: A subring is a subgroup. (Contributed by AV, 14-Feb-2025.) |
| Ref | Expression |
|---|---|
| subrngsubg | ⊢ (𝐴 ∈ (SubRng‘𝑅) → 𝐴 ∈ (SubGrp‘𝑅)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | subrngrcl 14494 | . . 3 ⊢ (𝐴 ∈ (SubRng‘𝑅) → 𝑅 ∈ Rng) | |
| 2 | rnggrp 14220 | . . 3 ⊢ (𝑅 ∈ Rng → 𝑅 ∈ Grp) | |
| 3 | 1, 2 | syl 14 | . 2 ⊢ (𝐴 ∈ (SubRng‘𝑅) → 𝑅 ∈ Grp) |
| 4 | eqid 2238 | . . 3 ⊢ (Base‘𝑅) = (Base‘𝑅) | |
| 5 | 4 | subrngss 14491 | . 2 ⊢ (𝐴 ∈ (SubRng‘𝑅) → 𝐴 ⊆ (Base‘𝑅)) |
| 6 | eqid 2238 | . . . 4 ⊢ (𝑅 ↾s 𝐴) = (𝑅 ↾s 𝐴) | |
| 7 | 6 | subrngrng 14493 | . . 3 ⊢ (𝐴 ∈ (SubRng‘𝑅) → (𝑅 ↾s 𝐴) ∈ Rng) |
| 8 | rnggrp 14220 | . . 3 ⊢ ((𝑅 ↾s 𝐴) ∈ Rng → (𝑅 ↾s 𝐴) ∈ Grp) | |
| 9 | 7, 8 | syl 14 | . 2 ⊢ (𝐴 ∈ (SubRng‘𝑅) → (𝑅 ↾s 𝐴) ∈ Grp) |
| 10 | 4 | issubg 13959 | . 2 ⊢ (𝐴 ∈ (SubGrp‘𝑅) ↔ (𝑅 ∈ Grp ∧ 𝐴 ⊆ (Base‘𝑅) ∧ (𝑅 ↾s 𝐴) ∈ Grp)) |
| 11 | 3, 5, 9, 10 | syl3anbrc 1212 | 1 ⊢ (𝐴 ∈ (SubRng‘𝑅) → 𝐴 ∈ (SubGrp‘𝑅)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2209 ⊆ wss 3220 ‘cfv 5375 (class class class)co 6079 Basecbs 13335 ↾s cress 13336 Grpcgrp 13788 SubGrpcsubg 13953 Rngcrng 14214 SubRngcsubrng 14488 |
| 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 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4247 ax-pow 4309 ax-pr 4344 ax-un 4576 ax-cnex 8264 ax-resscn 8265 ax-1re 8267 ax-addrcl 8270 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-sbc 3052 df-csb 3148 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3714 df-pr 3715 df-op 3717 df-uni 3934 df-int 3969 df-br 4129 df-opab 4191 df-mpt 4192 df-id 4436 df-xp 4778 df-rel 4779 df-cnv 4780 df-co 4781 df-dm 4782 df-rn 4783 df-res 4784 df-ima 4785 df-iota 5335 df-fun 5377 df-fn 5378 df-fv 5383 df-ov 6082 df-inn 9288 df-2 9346 df-3 9347 df-ndx 13338 df-slot 13339 df-base 13341 df-plusg 13427 df-mulr 13428 df-subg 13956 df-abl 14073 df-rng 14215 df-subrng 14489 |
| This theorem is referenced by: subrngringnsg 14496 subrngbas 14497 subrng0 14498 subrngacl 14499 issubrng2 14501 subrngintm 14503 rng2idl0 14839 rng2idlsubg0 14842 |
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