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| Mirrors > Home > ILE Home > Th. List > rng2idlsubgnsg | GIF version | ||
| Description: A two-sided ideal of a non-unital ring which is a subgroup of the ring is a normal subgroup of the ring. (Contributed by AV, 20-Feb-2025.) |
| Ref | Expression |
|---|---|
| rng2idlsubgsubrng.r | ⊢ (𝜑 → 𝑅 ∈ Rng) |
| rng2idlsubgsubrng.i | ⊢ (𝜑 → 𝐼 ∈ (2Ideal‘𝑅)) |
| rng2idlsubgsubrng.u | ⊢ (𝜑 → 𝐼 ∈ (SubGrp‘𝑅)) |
| Ref | Expression |
|---|---|
| rng2idlsubgnsg | ⊢ (𝜑 → 𝐼 ∈ (NrmSGrp‘𝑅)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rng2idlsubgsubrng.r | . . 3 ⊢ (𝜑 → 𝑅 ∈ Rng) | |
| 2 | rng2idlsubgsubrng.i | . . 3 ⊢ (𝜑 → 𝐼 ∈ (2Ideal‘𝑅)) | |
| 3 | rng2idlsubgsubrng.u | . . 3 ⊢ (𝜑 → 𝐼 ∈ (SubGrp‘𝑅)) | |
| 4 | 1, 2, 3 | rng2idlsubgsubrng 14596 | . 2 ⊢ (𝜑 → 𝐼 ∈ (SubRng‘𝑅)) |
| 5 | subrngringnsg 14281 | . 2 ⊢ (𝐼 ∈ (SubRng‘𝑅) → 𝐼 ∈ (NrmSGrp‘𝑅)) | |
| 6 | 4, 5 | syl 14 | 1 ⊢ (𝜑 → 𝐼 ∈ (NrmSGrp‘𝑅)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2202 ‘cfv 5333 SubGrpcsubg 13815 NrmSGrpcnsg 13816 Rngcrng 14007 SubRngcsubrng 14273 2Idealc2idl 14575 |
| 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-in1 619 ax-in2 620 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 2204 ax-14 2205 ax-ext 2213 ax-coll 4209 ax-sep 4212 ax-pow 4270 ax-pr 4305 ax-un 4536 ax-setind 4641 ax-cnex 8166 ax-resscn 8167 ax-1cn 8168 ax-1re 8169 ax-icn 8170 ax-addcl 8171 ax-addrcl 8172 ax-mulcl 8173 ax-addcom 8175 ax-addass 8177 ax-i2m1 8180 ax-0lt1 8181 ax-0id 8183 ax-rnegex 8184 ax-pre-ltirr 8187 ax-pre-lttrn 8189 ax-pre-ltadd 8191 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ne 2404 df-nel 2499 df-ral 2516 df-rex 2517 df-reu 2518 df-rmo 2519 df-rab 2520 df-v 2805 df-sbc 3033 df-csb 3129 df-dif 3203 df-un 3205 df-in 3207 df-ss 3214 df-nul 3497 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-int 3934 df-iun 3977 df-br 4094 df-opab 4156 df-mpt 4157 df-id 4396 df-xp 4737 df-rel 4738 df-cnv 4739 df-co 4740 df-dm 4741 df-rn 4742 df-res 4743 df-ima 4744 df-iota 5293 df-fun 5335 df-fn 5336 df-f 5337 df-f1 5338 df-fo 5339 df-f1o 5340 df-fv 5341 df-riota 5981 df-ov 6031 df-oprab 6032 df-mpo 6033 df-pnf 8259 df-mnf 8260 df-ltxr 8262 df-inn 9187 df-2 9245 df-3 9246 df-4 9247 df-5 9248 df-6 9249 df-7 9250 df-8 9251 df-ndx 13146 df-slot 13147 df-base 13149 df-sets 13150 df-iress 13151 df-plusg 13234 df-mulr 13235 df-sca 13237 df-vsca 13238 df-ip 13239 df-0g 13402 df-mgm 13500 df-sgrp 13546 df-mnd 13561 df-grp 13647 df-subg 13818 df-nsg 13819 df-cmn 13934 df-abl 13935 df-mgp 13996 df-rng 14008 df-subrng 14274 df-lssm 14429 df-sra 14511 df-rgmod 14512 df-lidl 14545 df-2idl 14576 |
| This theorem is referenced by: (None) |
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