| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > lidlsubg | GIF version | ||
| Description: An ideal is a subgroup of the additive group. (Contributed by Mario Carneiro, 14-Jun-2015.) |
| Ref | Expression |
|---|---|
| lidlcl.u | ⊢ 𝑈 = (LIdeal‘𝑅) |
| Ref | Expression |
|---|---|
| lidlsubg | ⊢ ((𝑅 ∈ Ring ∧ 𝐼 ∈ 𝑈) → 𝐼 ∈ (SubGrp‘𝑅)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2230 | . . . 4 ⊢ (Base‘𝑅) = (Base‘𝑅) | |
| 2 | lidlcl.u | . . . 4 ⊢ 𝑈 = (LIdeal‘𝑅) | |
| 3 | 1, 2 | lidlss 14514 | . . 3 ⊢ (𝐼 ∈ 𝑈 → 𝐼 ⊆ (Base‘𝑅)) |
| 4 | 3 | adantl 277 | . 2 ⊢ ((𝑅 ∈ Ring ∧ 𝐼 ∈ 𝑈) → 𝐼 ⊆ (Base‘𝑅)) |
| 5 | eqid 2230 | . . . 4 ⊢ (0g‘𝑅) = (0g‘𝑅) | |
| 6 | 2, 5 | lidl0cl 14521 | . . 3 ⊢ ((𝑅 ∈ Ring ∧ 𝐼 ∈ 𝑈) → (0g‘𝑅) ∈ 𝐼) |
| 7 | elex2 2818 | . . 3 ⊢ ((0g‘𝑅) ∈ 𝐼 → ∃𝑗 𝑗 ∈ 𝐼) | |
| 8 | 6, 7 | syl 14 | . 2 ⊢ ((𝑅 ∈ Ring ∧ 𝐼 ∈ 𝑈) → ∃𝑗 𝑗 ∈ 𝐼) |
| 9 | eqid 2230 | . . . . . . 7 ⊢ (+g‘𝑅) = (+g‘𝑅) | |
| 10 | 2, 9 | lidlacl 14522 | . . . . . 6 ⊢ (((𝑅 ∈ Ring ∧ 𝐼 ∈ 𝑈) ∧ (𝑥 ∈ 𝐼 ∧ 𝑦 ∈ 𝐼)) → (𝑥(+g‘𝑅)𝑦) ∈ 𝐼) |
| 11 | 10 | anassrs 400 | . . . . 5 ⊢ ((((𝑅 ∈ Ring ∧ 𝐼 ∈ 𝑈) ∧ 𝑥 ∈ 𝐼) ∧ 𝑦 ∈ 𝐼) → (𝑥(+g‘𝑅)𝑦) ∈ 𝐼) |
| 12 | 11 | ralrimiva 2604 | . . . 4 ⊢ (((𝑅 ∈ Ring ∧ 𝐼 ∈ 𝑈) ∧ 𝑥 ∈ 𝐼) → ∀𝑦 ∈ 𝐼 (𝑥(+g‘𝑅)𝑦) ∈ 𝐼) |
| 13 | eqid 2230 | . . . . . 6 ⊢ (invg‘𝑅) = (invg‘𝑅) | |
| 14 | 2, 13 | lidlnegcl 14523 | . . . . 5 ⊢ ((𝑅 ∈ Ring ∧ 𝐼 ∈ 𝑈 ∧ 𝑥 ∈ 𝐼) → ((invg‘𝑅)‘𝑥) ∈ 𝐼) |
| 15 | 14 | 3expa 1229 | . . . 4 ⊢ (((𝑅 ∈ Ring ∧ 𝐼 ∈ 𝑈) ∧ 𝑥 ∈ 𝐼) → ((invg‘𝑅)‘𝑥) ∈ 𝐼) |
| 16 | 12, 15 | jca 306 | . . 3 ⊢ (((𝑅 ∈ Ring ∧ 𝐼 ∈ 𝑈) ∧ 𝑥 ∈ 𝐼) → (∀𝑦 ∈ 𝐼 (𝑥(+g‘𝑅)𝑦) ∈ 𝐼 ∧ ((invg‘𝑅)‘𝑥) ∈ 𝐼)) |
| 17 | 16 | ralrimiva 2604 | . 2 ⊢ ((𝑅 ∈ Ring ∧ 𝐼 ∈ 𝑈) → ∀𝑥 ∈ 𝐼 (∀𝑦 ∈ 𝐼 (𝑥(+g‘𝑅)𝑦) ∈ 𝐼 ∧ ((invg‘𝑅)‘𝑥) ∈ 𝐼)) |
| 18 | ringgrp 14038 | . . . 4 ⊢ (𝑅 ∈ Ring → 𝑅 ∈ Grp) | |
| 19 | 18 | adantr 276 | . . 3 ⊢ ((𝑅 ∈ Ring ∧ 𝐼 ∈ 𝑈) → 𝑅 ∈ Grp) |
| 20 | 1, 9, 13 | issubg2m 13799 | . . 3 ⊢ (𝑅 ∈ Grp → (𝐼 ∈ (SubGrp‘𝑅) ↔ (𝐼 ⊆ (Base‘𝑅) ∧ ∃𝑗 𝑗 ∈ 𝐼 ∧ ∀𝑥 ∈ 𝐼 (∀𝑦 ∈ 𝐼 (𝑥(+g‘𝑅)𝑦) ∈ 𝐼 ∧ ((invg‘𝑅)‘𝑥) ∈ 𝐼)))) |
| 21 | 19, 20 | syl 14 | . 2 ⊢ ((𝑅 ∈ Ring ∧ 𝐼 ∈ 𝑈) → (𝐼 ∈ (SubGrp‘𝑅) ↔ (𝐼 ⊆ (Base‘𝑅) ∧ ∃𝑗 𝑗 ∈ 𝐼 ∧ ∀𝑥 ∈ 𝐼 (∀𝑦 ∈ 𝐼 (𝑥(+g‘𝑅)𝑦) ∈ 𝐼 ∧ ((invg‘𝑅)‘𝑥) ∈ 𝐼)))) |
| 22 | 4, 8, 17, 21 | mpbir3and 1206 | 1 ⊢ ((𝑅 ∈ Ring ∧ 𝐼 ∈ 𝑈) → 𝐼 ∈ (SubGrp‘𝑅)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ↔ wb 105 ∧ w3a 1004 = wceq 1397 ∃wex 1540 ∈ wcel 2201 ∀wral 2509 ⊆ wss 3199 ‘cfv 5328 (class class class)co 6023 Basecbs 13105 +gcplusg 13183 0gc0g 13362 Grpcgrp 13606 invgcminusg 13607 SubGrpcsubg 13777 Ringcrg 14033 LIdealclidl 14505 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2203 ax-14 2204 ax-ext 2212 ax-coll 4205 ax-sep 4208 ax-pow 4266 ax-pr 4301 ax-un 4532 ax-setind 4637 ax-cnex 8128 ax-resscn 8129 ax-1cn 8130 ax-1re 8131 ax-icn 8132 ax-addcl 8133 ax-addrcl 8134 ax-mulcl 8135 ax-addcom 8137 ax-addass 8139 ax-i2m1 8142 ax-0lt1 8143 ax-0id 8145 ax-rnegex 8146 ax-pre-ltirr 8149 ax-pre-lttrn 8151 ax-pre-ltadd 8153 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1810 df-eu 2081 df-mo 2082 df-clab 2217 df-cleq 2223 df-clel 2226 df-nfc 2362 df-ne 2402 df-nel 2497 df-ral 2514 df-rex 2515 df-reu 2516 df-rmo 2517 df-rab 2518 df-v 2803 df-sbc 3031 df-csb 3127 df-dif 3201 df-un 3203 df-in 3205 df-ss 3212 df-nul 3494 df-pw 3655 df-sn 3676 df-pr 3677 df-op 3679 df-uni 3895 df-int 3930 df-iun 3973 df-br 4090 df-opab 4152 df-mpt 4153 df-id 4392 df-xp 4733 df-rel 4734 df-cnv 4735 df-co 4736 df-dm 4737 df-rn 4738 df-res 4739 df-ima 4740 df-iota 5288 df-fun 5330 df-fn 5331 df-f 5332 df-f1 5333 df-fo 5334 df-f1o 5335 df-fv 5336 df-riota 5976 df-ov 6026 df-oprab 6027 df-mpo 6028 df-1st 6308 df-2nd 6309 df-pnf 8221 df-mnf 8222 df-ltxr 8224 df-inn 9149 df-2 9207 df-3 9208 df-4 9209 df-5 9210 df-6 9211 df-7 9212 df-8 9213 df-ndx 13108 df-slot 13109 df-base 13111 df-sets 13112 df-iress 13113 df-plusg 13196 df-mulr 13197 df-sca 13199 df-vsca 13200 df-ip 13201 df-0g 13364 df-mgm 13462 df-sgrp 13508 df-mnd 13523 df-grp 13609 df-minusg 13610 df-sbg 13611 df-subg 13780 df-mgp 13958 df-ur 13997 df-ring 14035 df-subrg 14257 df-lmod 14327 df-lssm 14391 df-sra 14473 df-rgmod 14474 df-lidl 14507 |
| This theorem is referenced by: lidlsubcl 14525 dflidl2 14526 df2idl2 14547 2idlcpbl 14562 qus1 14564 qusrhm 14566 qusmul2 14567 quscrng 14571 zndvds 14687 |
| Copyright terms: Public domain | W3C validator |