| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > cnmsubglem | Structured version Visualization version GIF version | ||
| Description: Lemma for rpmsubg 21400 and friends. (Contributed by Mario Carneiro, 21-Jun-2015.) |
| Ref | Expression |
|---|---|
| cnmgpabl.m | ⊢ 𝑀 = ((mulGrp‘ℂfld) ↾s (ℂ ∖ {0})) |
| cnmsubglem.1 | ⊢ (𝑥 ∈ 𝐴 → 𝑥 ∈ ℂ) |
| cnmsubglem.2 | ⊢ (𝑥 ∈ 𝐴 → 𝑥 ≠ 0) |
| cnmsubglem.3 | ⊢ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴) → (𝑥 · 𝑦) ∈ 𝐴) |
| cnmsubglem.4 | ⊢ 1 ∈ 𝐴 |
| cnmsubglem.5 | ⊢ (𝑥 ∈ 𝐴 → (1 / 𝑥) ∈ 𝐴) |
| Ref | Expression |
|---|---|
| cnmsubglem | ⊢ 𝐴 ∈ (SubGrp‘𝑀) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cnmsubglem.1 | . . . 4 ⊢ (𝑥 ∈ 𝐴 → 𝑥 ∈ ℂ) | |
| 2 | cnmsubglem.2 | . . . 4 ⊢ (𝑥 ∈ 𝐴 → 𝑥 ≠ 0) | |
| 3 | eldifsn 4721 | . . . 4 ⊢ (𝑥 ∈ (ℂ ∖ {0}) ↔ (𝑥 ∈ ℂ ∧ 𝑥 ≠ 0)) | |
| 4 | 1, 2, 3 | sylanbrc 584 | . . 3 ⊢ (𝑥 ∈ 𝐴 → 𝑥 ∈ (ℂ ∖ {0})) |
| 5 | 4 | ssriv 3921 | . 2 ⊢ 𝐴 ⊆ (ℂ ∖ {0}) |
| 6 | cnmsubglem.4 | . . 3 ⊢ 1 ∈ 𝐴 | |
| 7 | 6 | ne0ii 4274 | . 2 ⊢ 𝐴 ≠ ∅ |
| 8 | cnmsubglem.3 | . . . . 5 ⊢ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴) → (𝑥 · 𝑦) ∈ 𝐴) | |
| 9 | 8 | ralrimiva 3127 | . . . 4 ⊢ (𝑥 ∈ 𝐴 → ∀𝑦 ∈ 𝐴 (𝑥 · 𝑦) ∈ 𝐴) |
| 10 | cnfldinv 21372 | . . . . . 6 ⊢ ((𝑥 ∈ ℂ ∧ 𝑥 ≠ 0) → ((invr‘ℂfld)‘𝑥) = (1 / 𝑥)) | |
| 11 | 1, 2, 10 | syl2anc 585 | . . . . 5 ⊢ (𝑥 ∈ 𝐴 → ((invr‘ℂfld)‘𝑥) = (1 / 𝑥)) |
| 12 | cnmsubglem.5 | . . . . 5 ⊢ (𝑥 ∈ 𝐴 → (1 / 𝑥) ∈ 𝐴) | |
| 13 | 11, 12 | eqeltrd 2835 | . . . 4 ⊢ (𝑥 ∈ 𝐴 → ((invr‘ℂfld)‘𝑥) ∈ 𝐴) |
| 14 | 9, 13 | jca 511 | . . 3 ⊢ (𝑥 ∈ 𝐴 → (∀𝑦 ∈ 𝐴 (𝑥 · 𝑦) ∈ 𝐴 ∧ ((invr‘ℂfld)‘𝑥) ∈ 𝐴)) |
| 15 | 14 | rgen 3051 | . 2 ⊢ ∀𝑥 ∈ 𝐴 (∀𝑦 ∈ 𝐴 (𝑥 · 𝑦) ∈ 𝐴 ∧ ((invr‘ℂfld)‘𝑥) ∈ 𝐴) |
| 16 | cnmgpabl.m | . . . 4 ⊢ 𝑀 = ((mulGrp‘ℂfld) ↾s (ℂ ∖ {0})) | |
| 17 | 16 | cnmgpabl 21397 | . . 3 ⊢ 𝑀 ∈ Abel |
| 18 | ablgrp 19749 | . . 3 ⊢ (𝑀 ∈ Abel → 𝑀 ∈ Grp) | |
| 19 | difss 4068 | . . . . 5 ⊢ (ℂ ∖ {0}) ⊆ ℂ | |
| 20 | eqid 2735 | . . . . . . 7 ⊢ (mulGrp‘ℂfld) = (mulGrp‘ℂfld) | |
| 21 | cnfldbas 21345 | . . . . . . 7 ⊢ ℂ = (Base‘ℂfld) | |
| 22 | 20, 21 | mgpbas 20115 | . . . . . 6 ⊢ ℂ = (Base‘(mulGrp‘ℂfld)) |
| 23 | 16, 22 | ressbas2 17197 | . . . . 5 ⊢ ((ℂ ∖ {0}) ⊆ ℂ → (ℂ ∖ {0}) = (Base‘𝑀)) |
| 24 | 19, 23 | ax-mp 5 | . . . 4 ⊢ (ℂ ∖ {0}) = (Base‘𝑀) |
| 25 | cnex 11108 | . . . . 5 ⊢ ℂ ∈ V | |
| 26 | difexg 5259 | . . . . 5 ⊢ (ℂ ∈ V → (ℂ ∖ {0}) ∈ V) | |
| 27 | cnfldmul 21349 | . . . . . . 7 ⊢ · = (.r‘ℂfld) | |
| 28 | 20, 27 | mgpplusg 20114 | . . . . . 6 ⊢ · = (+g‘(mulGrp‘ℂfld)) |
| 29 | 16, 28 | ressplusg 17243 | . . . . 5 ⊢ ((ℂ ∖ {0}) ∈ V → · = (+g‘𝑀)) |
| 30 | 25, 26, 29 | mp2b 10 | . . . 4 ⊢ · = (+g‘𝑀) |
| 31 | cnfld0 21365 | . . . . . 6 ⊢ 0 = (0g‘ℂfld) | |
| 32 | cndrng 21370 | . . . . . 6 ⊢ ℂfld ∈ DivRing | |
| 33 | 21, 31, 32 | drngui 20701 | . . . . 5 ⊢ (ℂ ∖ {0}) = (Unit‘ℂfld) |
| 34 | eqid 2735 | . . . . 5 ⊢ (invr‘ℂfld) = (invr‘ℂfld) | |
| 35 | 33, 16, 34 | invrfval 20358 | . . . 4 ⊢ (invr‘ℂfld) = (invg‘𝑀) |
| 36 | 24, 30, 35 | issubg2 19106 | . . 3 ⊢ (𝑀 ∈ Grp → (𝐴 ∈ (SubGrp‘𝑀) ↔ (𝐴 ⊆ (ℂ ∖ {0}) ∧ 𝐴 ≠ ∅ ∧ ∀𝑥 ∈ 𝐴 (∀𝑦 ∈ 𝐴 (𝑥 · 𝑦) ∈ 𝐴 ∧ ((invr‘ℂfld)‘𝑥) ∈ 𝐴)))) |
| 37 | 17, 18, 36 | mp2b 10 | . 2 ⊢ (𝐴 ∈ (SubGrp‘𝑀) ↔ (𝐴 ⊆ (ℂ ∖ {0}) ∧ 𝐴 ≠ ∅ ∧ ∀𝑥 ∈ 𝐴 (∀𝑦 ∈ 𝐴 (𝑥 · 𝑦) ∈ 𝐴 ∧ ((invr‘ℂfld)‘𝑥) ∈ 𝐴))) |
| 38 | 5, 7, 15, 37 | mpbir3an 1343 | 1 ⊢ 𝐴 ∈ (SubGrp‘𝑀) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 ∧ w3a 1087 = wceq 1542 ∈ wcel 2114 ≠ wne 2930 ∀wral 3049 Vcvv 3427 ∖ cdif 3882 ⊆ wss 3885 ∅c0 4263 {csn 4557 ‘cfv 6487 (class class class)co 7356 ℂcc 11025 0cc0 11027 1c1 11028 · cmul 11032 / cdiv 11796 Basecbs 17168 ↾s cress 17189 +gcplusg 17209 Grpcgrp 18898 SubGrpcsubg 19085 Abelcabl 19745 mulGrpcmgp 20110 invrcinvr 20356 ℂfldccnfld 21341 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2184 ax-ext 2707 ax-rep 5201 ax-sep 5220 ax-nul 5230 ax-pow 5296 ax-pr 5364 ax-un 7678 ax-cnex 11083 ax-resscn 11084 ax-1cn 11085 ax-icn 11086 ax-addcl 11087 ax-addrcl 11088 ax-mulcl 11089 ax-mulrcl 11090 ax-mulcom 11091 ax-addass 11092 ax-mulass 11093 ax-distr 11094 ax-i2m1 11095 ax-1ne0 11096 ax-1rid 11097 ax-rnegex 11098 ax-rrecex 11099 ax-cnre 11100 ax-pre-lttri 11101 ax-pre-lttrn 11102 ax-pre-ltadd 11103 ax-pre-mulgt0 11104 ax-addf 11106 ax-mulf 11107 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2538 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2810 df-nfc 2884 df-ne 2931 df-nel 3035 df-ral 3050 df-rex 3060 df-rmo 3340 df-reu 3341 df-rab 3388 df-v 3429 df-sbc 3726 df-csb 3834 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-pss 3905 df-nul 4264 df-if 4457 df-pw 4533 df-sn 4558 df-pr 4560 df-tp 4562 df-op 4564 df-uni 4841 df-iun 4925 df-br 5075 df-opab 5137 df-mpt 5156 df-tr 5182 df-id 5515 df-eprel 5520 df-po 5528 df-so 5529 df-fr 5573 df-we 5575 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 df-pred 6254 df-ord 6315 df-on 6316 df-lim 6317 df-suc 6318 df-iota 6443 df-fun 6489 df-fn 6490 df-f 6491 df-f1 6492 df-fo 6493 df-f1o 6494 df-fv 6495 df-riota 7313 df-ov 7359 df-oprab 7360 df-mpo 7361 df-om 7807 df-1st 7931 df-2nd 7932 df-tpos 8165 df-frecs 8220 df-wrecs 8251 df-recs 8300 df-rdg 8338 df-1o 8394 df-er 8632 df-en 8883 df-dom 8884 df-sdom 8885 df-fin 8886 df-pnf 11170 df-mnf 11171 df-xr 11172 df-ltxr 11173 df-le 11174 df-sub 11368 df-neg 11369 df-div 11797 df-nn 12164 df-2 12233 df-3 12234 df-4 12235 df-5 12236 df-6 12237 df-7 12238 df-8 12239 df-9 12240 df-n0 12427 df-z 12514 df-dec 12634 df-uz 12778 df-fz 13451 df-struct 17106 df-sets 17123 df-slot 17141 df-ndx 17153 df-base 17169 df-ress 17190 df-plusg 17222 df-mulr 17223 df-starv 17224 df-tset 17228 df-ple 17229 df-ds 17231 df-unif 17232 df-0g 17393 df-mgm 18597 df-sgrp 18676 df-mnd 18692 df-grp 18901 df-minusg 18902 df-subg 19088 df-cmn 19746 df-abl 19747 df-mgp 20111 df-rng 20123 df-ur 20152 df-ring 20205 df-cring 20206 df-oppr 20306 df-dvdsr 20326 df-unit 20327 df-invr 20357 df-dvr 20370 df-drng 20697 df-cnfld 21342 |
| This theorem is referenced by: rpmsubg 21400 cnmsgnsubg 21546 |
| Copyright terms: Public domain | W3C validator |