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| Mirrors > Home > MPE Home > Th. List > cvsdivcl | Structured version Visualization version GIF version | ||
| Description: The scalar field of a subcomplex vector space is closed under division. (Contributed by Thierry Arnoux, 22-May-2019.) |
| Ref | Expression |
|---|---|
| cvsdiv.f | ⊢ 𝐹 = (Scalar‘𝑊) |
| cvsdiv.k | ⊢ 𝐾 = (Base‘𝐹) |
| Ref | Expression |
|---|---|
| cvsdivcl | ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → (𝐴 / 𝐵) ∈ 𝐾) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cvsdiv.f | . . 3 ⊢ 𝐹 = (Scalar‘𝑊) | |
| 2 | cvsdiv.k | . . 3 ⊢ 𝐾 = (Base‘𝐹) | |
| 3 | 1, 2 | cvsdiv 25172 | . 2 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → (𝐴 / 𝐵) = (𝐴(/r‘𝐹)𝐵)) |
| 4 | simpl 486 | . . . . 5 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → 𝑊 ∈ ℂVec) | |
| 5 | 4 | cvslvec 25165 | . . . 4 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → 𝑊 ∈ LVec) |
| 6 | 1 | lvecdrng 21150 | . . . 4 ⊢ (𝑊 ∈ LVec → 𝐹 ∈ DivRing) |
| 7 | drngring 20763 | . . . 4 ⊢ (𝐹 ∈ DivRing → 𝐹 ∈ Ring) | |
| 8 | 5, 6, 7 | 3syl 18 | . . 3 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → 𝐹 ∈ Ring) |
| 9 | simpr1 1207 | . . 3 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → 𝐴 ∈ 𝐾) | |
| 10 | simpr2 1208 | . . . . 5 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → 𝐵 ∈ 𝐾) | |
| 11 | simpr3 1209 | . . . . 5 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → 𝐵 ≠ 0) | |
| 12 | eldifsn 4745 | . . . . 5 ⊢ (𝐵 ∈ (𝐾 ∖ {0}) ↔ (𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) | |
| 13 | 10, 11, 12 | sylanbrc 592 | . . . 4 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → 𝐵 ∈ (𝐾 ∖ {0})) |
| 14 | 1, 2 | cvsunit 25171 | . . . . 5 ⊢ (𝑊 ∈ ℂVec → (𝐾 ∖ {0}) = (Unit‘𝐹)) |
| 15 | 14 | adantr 484 | . . . 4 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → (𝐾 ∖ {0}) = (Unit‘𝐹)) |
| 16 | 13, 15 | eleqtrd 2863 | . . 3 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → 𝐵 ∈ (Unit‘𝐹)) |
| 17 | eqid 2761 | . . . 4 ⊢ (Unit‘𝐹) = (Unit‘𝐹) | |
| 18 | eqid 2761 | . . . 4 ⊢ (/r‘𝐹) = (/r‘𝐹) | |
| 19 | 2, 17, 18 | dvrcl 20430 | . . 3 ⊢ ((𝐹 ∈ Ring ∧ 𝐴 ∈ 𝐾 ∧ 𝐵 ∈ (Unit‘𝐹)) → (𝐴(/r‘𝐹)𝐵) ∈ 𝐾) |
| 20 | 8, 9, 16, 19 | syl3anc 1389 | . 2 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → (𝐴(/r‘𝐹)𝐵) ∈ 𝐾) |
| 21 | 3, 20 | eqeltrd 2861 | 1 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → (𝐴 / 𝐵) ∈ 𝐾) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 ∧ w3a 1097 = wceq 1559 ∈ wcel 2141 ≠ wne 2956 ∖ cdif 3901 {csn 4581 ‘cfv 6515 (class class class)co 7390 0cc0 11068 / cdiv 11839 Basecbs 17226 Scalarcsca 17270 Ringcrg 20260 Unitcui 20381 /rcdvr 20426 DivRingcdr 20756 LVecclvec 21147 ℂVecccvs 25163 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-rep 5226 ax-sep 5245 ax-nul 5255 ax-pow 5321 ax-pr 5389 ax-un 7712 ax-cnex 11124 ax-resscn 11125 ax-1cn 11126 ax-icn 11127 ax-addcl 11128 ax-addrcl 11129 ax-mulcl 11130 ax-mulrcl 11131 ax-mulcom 11132 ax-addass 11133 ax-mulass 11134 ax-distr 11135 ax-i2m1 11136 ax-1ne0 11137 ax-1rid 11138 ax-rnegex 11139 ax-rrecex 11140 ax-cnre 11141 ax-pre-lttri 11142 ax-pre-lttrn 11143 ax-pre-ltadd 11144 ax-pre-mulgt0 11145 ax-addf 11147 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3061 df-ral 3076 df-rex 3086 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3745 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4582 df-pr 4584 df-tp 4586 df-op 4588 df-uni 4865 df-iun 4950 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5540 df-eprel 5545 df-po 5553 df-so 5554 df-fr 5598 df-we 5600 df-xp 5651 df-rel 5652 df-cnv 5653 df-co 5654 df-dm 5655 df-rn 5656 df-res 5657 df-ima 5658 df-pred 6282 df-ord 6343 df-on 6344 df-lim 6345 df-suc 6346 df-iota 6471 df-fun 6517 df-fn 6518 df-f 6519 df-f1 6520 df-fo 6521 df-f1o 6522 df-fv 6523 df-riota 7347 df-ov 7393 df-oprab 7394 df-mpo 7395 df-om 7841 df-1st 7964 df-2nd 7965 df-tpos 8199 df-frecs 8255 df-wrecs 8286 df-recs 8335 df-rdg 8374 df-1o 8430 df-er 8671 df-en 8922 df-dom 8923 df-sdom 8924 df-fin 8925 df-pnf 11213 df-mnf 11214 df-xr 11215 df-ltxr 11216 df-le 11217 df-sub 11411 df-neg 11412 df-div 11840 df-nn 12206 df-2 12275 df-3 12276 df-4 12277 df-5 12278 df-6 12279 df-7 12280 df-8 12281 df-9 12282 df-n0 12477 df-z 12564 df-dec 12684 df-uz 12835 df-fz 13508 df-struct 17164 df-sets 17181 df-slot 17199 df-ndx 17211 df-base 17227 df-ress 17248 df-plusg 17280 df-mulr 17281 df-starv 17282 df-tset 17286 df-ple 17287 df-ds 17289 df-unif 17290 df-0g 17451 df-mgm 18655 df-sgrp 18734 df-mnd 18750 df-grp 18959 df-minusg 18960 df-subg 19146 df-cmn 19803 df-abl 19804 df-mgp 20168 df-rng 20180 df-ur 20209 df-ring 20262 df-cring 20263 df-oppr 20363 df-dvdsr 20383 df-unit 20384 df-invr 20414 df-dvr 20427 df-subrg 20597 df-drng 20758 df-lvec 21148 df-cnfld 21403 df-clm 25103 df-cvs 25164 |
| This theorem is referenced by: cvsmuleqdivd 25174 cvsdiveqd 25175 ttgcontlem1 29029 |
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