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Mirrors > Home > MPE Home > Th. List > cphreccllem | Structured version Visualization version GIF version |
Description: Lemma for cphreccl 24250. (Contributed by Mario Carneiro, 8-Oct-2015.) |
Ref | Expression |
---|---|
cphsubrglem.k | ⊢ 𝐾 = (Base‘𝐹) |
cphsubrglem.1 | ⊢ (𝜑 → 𝐹 = (ℂfld ↾s 𝐴)) |
cphsubrglem.2 | ⊢ (𝜑 → 𝐹 ∈ DivRing) |
Ref | Expression |
---|---|
cphreccllem | ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → (1 / 𝑋) ∈ 𝐾) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cphsubrglem.k | . . . . . . . 8 ⊢ 𝐾 = (Base‘𝐹) | |
2 | cphsubrglem.1 | . . . . . . . 8 ⊢ (𝜑 → 𝐹 = (ℂfld ↾s 𝐴)) | |
3 | cphsubrglem.2 | . . . . . . . 8 ⊢ (𝜑 → 𝐹 ∈ DivRing) | |
4 | 1, 2, 3 | cphsubrglem 24246 | . . . . . . 7 ⊢ (𝜑 → (𝐹 = (ℂfld ↾s 𝐾) ∧ 𝐾 = (𝐴 ∩ ℂ) ∧ 𝐾 ∈ (SubRing‘ℂfld))) |
5 | 4 | simp3d 1142 | . . . . . 6 ⊢ (𝜑 → 𝐾 ∈ (SubRing‘ℂfld)) |
6 | 5 | 3ad2ant1 1131 | . . . . 5 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → 𝐾 ∈ (SubRing‘ℂfld)) |
7 | cnfldbas 20514 | . . . . . 6 ⊢ ℂ = (Base‘ℂfld) | |
8 | 7 | subrgss 19940 | . . . . 5 ⊢ (𝐾 ∈ (SubRing‘ℂfld) → 𝐾 ⊆ ℂ) |
9 | 6, 8 | syl 17 | . . . 4 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → 𝐾 ⊆ ℂ) |
10 | simp2 1135 | . . . 4 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → 𝑋 ∈ 𝐾) | |
11 | 9, 10 | sseldd 3918 | . . 3 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → 𝑋 ∈ ℂ) |
12 | simp3 1136 | . . 3 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → 𝑋 ≠ 0) | |
13 | cnfldinv 20541 | . . 3 ⊢ ((𝑋 ∈ ℂ ∧ 𝑋 ≠ 0) → ((invr‘ℂfld)‘𝑋) = (1 / 𝑋)) | |
14 | 11, 12, 13 | syl2anc 583 | . 2 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → ((invr‘ℂfld)‘𝑋) = (1 / 𝑋)) |
15 | eqid 2738 | . . . . . . . . . 10 ⊢ (ℂfld ↾s 𝐾) = (ℂfld ↾s 𝐾) | |
16 | cnfld0 20534 | . . . . . . . . . 10 ⊢ 0 = (0g‘ℂfld) | |
17 | 15, 16 | subrg0 19946 | . . . . . . . . 9 ⊢ (𝐾 ∈ (SubRing‘ℂfld) → 0 = (0g‘(ℂfld ↾s 𝐾))) |
18 | 6, 17 | syl 17 | . . . . . . . 8 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → 0 = (0g‘(ℂfld ↾s 𝐾))) |
19 | 4 | simp1d 1140 | . . . . . . . . . 10 ⊢ (𝜑 → 𝐹 = (ℂfld ↾s 𝐾)) |
20 | 19 | 3ad2ant1 1131 | . . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → 𝐹 = (ℂfld ↾s 𝐾)) |
21 | 20 | fveq2d 6760 | . . . . . . . 8 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → (0g‘𝐹) = (0g‘(ℂfld ↾s 𝐾))) |
22 | 18, 21 | eqtr4d 2781 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → 0 = (0g‘𝐹)) |
23 | 12, 22 | neeqtrd 3012 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → 𝑋 ≠ (0g‘𝐹)) |
24 | eldifsn 4717 | . . . . . 6 ⊢ (𝑋 ∈ (𝐾 ∖ {(0g‘𝐹)}) ↔ (𝑋 ∈ 𝐾 ∧ 𝑋 ≠ (0g‘𝐹))) | |
25 | 10, 23, 24 | sylanbrc 582 | . . . . 5 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → 𝑋 ∈ (𝐾 ∖ {(0g‘𝐹)})) |
26 | 3 | 3ad2ant1 1131 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → 𝐹 ∈ DivRing) |
27 | eqid 2738 | . . . . . . . . 9 ⊢ (Unit‘𝐹) = (Unit‘𝐹) | |
28 | eqid 2738 | . . . . . . . . 9 ⊢ (0g‘𝐹) = (0g‘𝐹) | |
29 | 1, 27, 28 | isdrng 19910 | . . . . . . . 8 ⊢ (𝐹 ∈ DivRing ↔ (𝐹 ∈ Ring ∧ (Unit‘𝐹) = (𝐾 ∖ {(0g‘𝐹)}))) |
30 | 29 | simprbi 496 | . . . . . . 7 ⊢ (𝐹 ∈ DivRing → (Unit‘𝐹) = (𝐾 ∖ {(0g‘𝐹)})) |
31 | 26, 30 | syl 17 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → (Unit‘𝐹) = (𝐾 ∖ {(0g‘𝐹)})) |
32 | 20 | fveq2d 6760 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → (Unit‘𝐹) = (Unit‘(ℂfld ↾s 𝐾))) |
33 | 31, 32 | eqtr3d 2780 | . . . . 5 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → (𝐾 ∖ {(0g‘𝐹)}) = (Unit‘(ℂfld ↾s 𝐾))) |
34 | 25, 33 | eleqtrd 2841 | . . . 4 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → 𝑋 ∈ (Unit‘(ℂfld ↾s 𝐾))) |
35 | eqid 2738 | . . . . . 6 ⊢ (Unit‘ℂfld) = (Unit‘ℂfld) | |
36 | eqid 2738 | . . . . . 6 ⊢ (Unit‘(ℂfld ↾s 𝐾)) = (Unit‘(ℂfld ↾s 𝐾)) | |
37 | eqid 2738 | . . . . . 6 ⊢ (invr‘ℂfld) = (invr‘ℂfld) | |
38 | 15, 35, 36, 37 | subrgunit 19957 | . . . . 5 ⊢ (𝐾 ∈ (SubRing‘ℂfld) → (𝑋 ∈ (Unit‘(ℂfld ↾s 𝐾)) ↔ (𝑋 ∈ (Unit‘ℂfld) ∧ 𝑋 ∈ 𝐾 ∧ ((invr‘ℂfld)‘𝑋) ∈ 𝐾))) |
39 | 6, 38 | syl 17 | . . . 4 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → (𝑋 ∈ (Unit‘(ℂfld ↾s 𝐾)) ↔ (𝑋 ∈ (Unit‘ℂfld) ∧ 𝑋 ∈ 𝐾 ∧ ((invr‘ℂfld)‘𝑋) ∈ 𝐾))) |
40 | 34, 39 | mpbid 231 | . . 3 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → (𝑋 ∈ (Unit‘ℂfld) ∧ 𝑋 ∈ 𝐾 ∧ ((invr‘ℂfld)‘𝑋) ∈ 𝐾)) |
41 | 40 | simp3d 1142 | . 2 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → ((invr‘ℂfld)‘𝑋) ∈ 𝐾) |
42 | 14, 41 | eqeltrrd 2840 | 1 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐾 ∧ 𝑋 ≠ 0) → (1 / 𝑋) ∈ 𝐾) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ w3a 1085 = wceq 1539 ∈ wcel 2108 ≠ wne 2942 ∖ cdif 3880 ∩ cin 3882 ⊆ wss 3883 {csn 4558 ‘cfv 6418 (class class class)co 7255 ℂcc 10800 0cc0 10802 1c1 10803 / cdiv 11562 Basecbs 16840 ↾s cress 16867 0gc0g 17067 Ringcrg 19698 Unitcui 19796 invrcinvr 19828 DivRingcdr 19906 SubRingcsubrg 19935 ℂfldccnfld 20510 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 ax-addf 10881 ax-mulf 10882 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rmo 3071 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-1st 7804 df-2nd 7805 df-tpos 8013 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-1o 8267 df-er 8456 df-en 8692 df-dom 8693 df-sdom 8694 df-fin 8695 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-div 11563 df-nn 11904 df-2 11966 df-3 11967 df-4 11968 df-5 11969 df-6 11970 df-7 11971 df-8 11972 df-9 11973 df-n0 12164 df-z 12250 df-dec 12367 df-uz 12512 df-fz 13169 df-seq 13650 df-exp 13711 df-struct 16776 df-sets 16793 df-slot 16811 df-ndx 16823 df-base 16841 df-ress 16868 df-plusg 16901 df-mulr 16902 df-starv 16903 df-tset 16907 df-ple 16908 df-ds 16910 df-unif 16911 df-0g 17069 df-mgm 18241 df-sgrp 18290 df-mnd 18301 df-grp 18495 df-minusg 18496 df-subg 18667 df-cmn 19303 df-mgp 19636 df-ur 19653 df-ring 19700 df-cring 19701 df-oppr 19777 df-dvdsr 19798 df-unit 19799 df-invr 19829 df-dvr 19840 df-drng 19908 df-subrg 19937 df-cnfld 20511 |
This theorem is referenced by: cphreccl 24250 ipcau2 24303 |
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