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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 23739 | . 2 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → (𝐴 / 𝐵) = (𝐴(/r‘𝐹)𝐵)) |
4 | simpl 485 | . . . . 5 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → 𝑊 ∈ ℂVec) | |
5 | 4 | cvslvec 23732 | . . . 4 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → 𝑊 ∈ LVec) |
6 | 1 | lvecdrng 19880 | . . . 4 ⊢ (𝑊 ∈ LVec → 𝐹 ∈ DivRing) |
7 | drngring 19512 | . . . 4 ⊢ (𝐹 ∈ DivRing → 𝐹 ∈ Ring) | |
8 | 5, 6, 7 | 3syl 18 | . . 3 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → 𝐹 ∈ Ring) |
9 | simpr1 1190 | . . 3 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → 𝐴 ∈ 𝐾) | |
10 | simpr2 1191 | . . . . 5 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → 𝐵 ∈ 𝐾) | |
11 | simpr3 1192 | . . . . 5 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → 𝐵 ≠ 0) | |
12 | eldifsn 4722 | . . . . 5 ⊢ (𝐵 ∈ (𝐾 ∖ {0}) ↔ (𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) | |
13 | 10, 11, 12 | sylanbrc 585 | . . . 4 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → 𝐵 ∈ (𝐾 ∖ {0})) |
14 | 1, 2 | cvsunit 23738 | . . . . 5 ⊢ (𝑊 ∈ ℂVec → (𝐾 ∖ {0}) = (Unit‘𝐹)) |
15 | 14 | adantr 483 | . . . 4 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → (𝐾 ∖ {0}) = (Unit‘𝐹)) |
16 | 13, 15 | eleqtrd 2918 | . . 3 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → 𝐵 ∈ (Unit‘𝐹)) |
17 | eqid 2824 | . . . 4 ⊢ (Unit‘𝐹) = (Unit‘𝐹) | |
18 | eqid 2824 | . . . 4 ⊢ (/r‘𝐹) = (/r‘𝐹) | |
19 | 2, 17, 18 | dvrcl 19439 | . . 3 ⊢ ((𝐹 ∈ Ring ∧ 𝐴 ∈ 𝐾 ∧ 𝐵 ∈ (Unit‘𝐹)) → (𝐴(/r‘𝐹)𝐵) ∈ 𝐾) |
20 | 8, 9, 16, 19 | syl3anc 1367 | . 2 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → (𝐴(/r‘𝐹)𝐵) ∈ 𝐾) |
21 | 3, 20 | eqeltrd 2916 | 1 ⊢ ((𝑊 ∈ ℂVec ∧ (𝐴 ∈ 𝐾 ∧ 𝐵 ∈ 𝐾 ∧ 𝐵 ≠ 0)) → (𝐴 / 𝐵) ∈ 𝐾) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 398 ∧ w3a 1083 = wceq 1536 ∈ wcel 2113 ≠ wne 3019 ∖ cdif 3936 {csn 4570 ‘cfv 6358 (class class class)co 7159 0cc0 10540 / cdiv 11300 Basecbs 16486 Scalarcsca 16571 Ringcrg 19300 Unitcui 19392 /rcdvr 19435 DivRingcdr 19505 LVecclvec 19877 ℂVecccvs 23730 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1969 ax-7 2014 ax-8 2115 ax-9 2123 ax-10 2144 ax-11 2160 ax-12 2176 ax-ext 2796 ax-rep 5193 ax-sep 5206 ax-nul 5213 ax-pow 5269 ax-pr 5333 ax-un 7464 ax-cnex 10596 ax-resscn 10597 ax-1cn 10598 ax-icn 10599 ax-addcl 10600 ax-addrcl 10601 ax-mulcl 10602 ax-mulrcl 10603 ax-mulcom 10604 ax-addass 10605 ax-mulass 10606 ax-distr 10607 ax-i2m1 10608 ax-1ne0 10609 ax-1rid 10610 ax-rnegex 10611 ax-rrecex 10612 ax-cnre 10613 ax-pre-lttri 10614 ax-pre-lttrn 10615 ax-pre-ltadd 10616 ax-pre-mulgt0 10617 ax-addf 10619 ax-mulf 10620 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1539 df-ex 1780 df-nf 1784 df-sb 2069 df-mo 2621 df-eu 2653 df-clab 2803 df-cleq 2817 df-clel 2896 df-nfc 2966 df-ne 3020 df-nel 3127 df-ral 3146 df-rex 3147 df-reu 3148 df-rmo 3149 df-rab 3150 df-v 3499 df-sbc 3776 df-csb 3887 df-dif 3942 df-un 3944 df-in 3946 df-ss 3955 df-pss 3957 df-nul 4295 df-if 4471 df-pw 4544 df-sn 4571 df-pr 4573 df-tp 4575 df-op 4577 df-uni 4842 df-int 4880 df-iun 4924 df-br 5070 df-opab 5132 df-mpt 5150 df-tr 5176 df-id 5463 df-eprel 5468 df-po 5477 df-so 5478 df-fr 5517 df-we 5519 df-xp 5564 df-rel 5565 df-cnv 5566 df-co 5567 df-dm 5568 df-rn 5569 df-res 5570 df-ima 5571 df-pred 6151 df-ord 6197 df-on 6198 df-lim 6199 df-suc 6200 df-iota 6317 df-fun 6360 df-fn 6361 df-f 6362 df-f1 6363 df-fo 6364 df-f1o 6365 df-fv 6366 df-riota 7117 df-ov 7162 df-oprab 7163 df-mpo 7164 df-om 7584 df-1st 7692 df-2nd 7693 df-tpos 7895 df-wrecs 7950 df-recs 8011 df-rdg 8049 df-1o 8105 df-oadd 8109 df-er 8292 df-en 8513 df-dom 8514 df-sdom 8515 df-fin 8516 df-pnf 10680 df-mnf 10681 df-xr 10682 df-ltxr 10683 df-le 10684 df-sub 10875 df-neg 10876 df-div 11301 df-nn 11642 df-2 11703 df-3 11704 df-4 11705 df-5 11706 df-6 11707 df-7 11708 df-8 11709 df-9 11710 df-n0 11901 df-z 11985 df-dec 12102 df-uz 12247 df-fz 12896 df-struct 16488 df-ndx 16489 df-slot 16490 df-base 16492 df-sets 16493 df-ress 16494 df-plusg 16581 df-mulr 16582 df-starv 16583 df-tset 16587 df-ple 16588 df-ds 16590 df-unif 16591 df-0g 16718 df-mgm 17855 df-sgrp 17904 df-mnd 17915 df-grp 18109 df-minusg 18110 df-subg 18279 df-cmn 18911 df-mgp 19243 df-ur 19255 df-ring 19302 df-cring 19303 df-oppr 19376 df-dvdsr 19394 df-unit 19395 df-invr 19425 df-dvr 19436 df-drng 19507 df-subrg 19536 df-lvec 19878 df-cnfld 20549 df-clm 23670 df-cvs 23731 |
This theorem is referenced by: cvsmuleqdivd 23741 cvsdiveqd 23742 ttgcontlem1 26674 |
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