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Mirrors > Home > MPE Home > Th. List > mat0dimscm | Structured version Visualization version GIF version |
Description: The scalar multiplication in the algebra of matrices with dimension 0. (Contributed by AV, 6-Aug-2019.) |
Ref | Expression |
---|---|
mat0dim.a | ⊢ 𝐴 = (∅ Mat 𝑅) |
Ref | Expression |
---|---|
mat0dimscm | ⊢ ((𝑅 ∈ Ring ∧ 𝑋 ∈ (Base‘𝑅)) → (𝑋( ·𝑠 ‘𝐴)∅) = ∅) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpl 487 | . 2 ⊢ ((𝑅 ∈ Ring ∧ 𝑋 ∈ (Base‘𝑅)) → 𝑅 ∈ Ring) | |
2 | 0fin 8768 | . . . 4 ⊢ ∅ ∈ Fin | |
3 | mat0dim.a | . . . . 5 ⊢ 𝐴 = (∅ Mat 𝑅) | |
4 | 3 | matlmod 21122 | . . . 4 ⊢ ((∅ ∈ Fin ∧ 𝑅 ∈ Ring) → 𝐴 ∈ LMod) |
5 | 2, 1, 4 | sylancr 591 | . . 3 ⊢ ((𝑅 ∈ Ring ∧ 𝑋 ∈ (Base‘𝑅)) → 𝐴 ∈ LMod) |
6 | 3 | matsca2 21113 | . . . . . . 7 ⊢ ((∅ ∈ Fin ∧ 𝑅 ∈ Ring) → 𝑅 = (Scalar‘𝐴)) |
7 | 2, 6 | mpan 690 | . . . . . 6 ⊢ (𝑅 ∈ Ring → 𝑅 = (Scalar‘𝐴)) |
8 | 7 | fveq2d 6663 | . . . . 5 ⊢ (𝑅 ∈ Ring → (Base‘𝑅) = (Base‘(Scalar‘𝐴))) |
9 | 8 | eleq2d 2838 | . . . 4 ⊢ (𝑅 ∈ Ring → (𝑋 ∈ (Base‘𝑅) ↔ 𝑋 ∈ (Base‘(Scalar‘𝐴)))) |
10 | 9 | biimpa 481 | . . 3 ⊢ ((𝑅 ∈ Ring ∧ 𝑋 ∈ (Base‘𝑅)) → 𝑋 ∈ (Base‘(Scalar‘𝐴))) |
11 | 0ex 5178 | . . . . . 6 ⊢ ∅ ∈ V | |
12 | 11 | snid 4559 | . . . . 5 ⊢ ∅ ∈ {∅} |
13 | 3 | fveq2i 6662 | . . . . . 6 ⊢ (Base‘𝐴) = (Base‘(∅ Mat 𝑅)) |
14 | mat0dimbas0 21159 | . . . . . 6 ⊢ (𝑅 ∈ Ring → (Base‘(∅ Mat 𝑅)) = {∅}) | |
15 | 13, 14 | syl5eq 2806 | . . . . 5 ⊢ (𝑅 ∈ Ring → (Base‘𝐴) = {∅}) |
16 | 12, 15 | eleqtrrid 2860 | . . . 4 ⊢ (𝑅 ∈ Ring → ∅ ∈ (Base‘𝐴)) |
17 | 16 | adantr 485 | . . 3 ⊢ ((𝑅 ∈ Ring ∧ 𝑋 ∈ (Base‘𝑅)) → ∅ ∈ (Base‘𝐴)) |
18 | eqid 2759 | . . . 4 ⊢ (Base‘𝐴) = (Base‘𝐴) | |
19 | eqid 2759 | . . . 4 ⊢ (Scalar‘𝐴) = (Scalar‘𝐴) | |
20 | eqid 2759 | . . . 4 ⊢ ( ·𝑠 ‘𝐴) = ( ·𝑠 ‘𝐴) | |
21 | eqid 2759 | . . . 4 ⊢ (Base‘(Scalar‘𝐴)) = (Base‘(Scalar‘𝐴)) | |
22 | 18, 19, 20, 21 | lmodvscl 19712 | . . 3 ⊢ ((𝐴 ∈ LMod ∧ 𝑋 ∈ (Base‘(Scalar‘𝐴)) ∧ ∅ ∈ (Base‘𝐴)) → (𝑋( ·𝑠 ‘𝐴)∅) ∈ (Base‘𝐴)) |
23 | 5, 10, 17, 22 | syl3anc 1369 | . 2 ⊢ ((𝑅 ∈ Ring ∧ 𝑋 ∈ (Base‘𝑅)) → (𝑋( ·𝑠 ‘𝐴)∅) ∈ (Base‘𝐴)) |
24 | 15 | eleq2d 2838 | . . 3 ⊢ (𝑅 ∈ Ring → ((𝑋( ·𝑠 ‘𝐴)∅) ∈ (Base‘𝐴) ↔ (𝑋( ·𝑠 ‘𝐴)∅) ∈ {∅})) |
25 | elsni 4540 | . . 3 ⊢ ((𝑋( ·𝑠 ‘𝐴)∅) ∈ {∅} → (𝑋( ·𝑠 ‘𝐴)∅) = ∅) | |
26 | 24, 25 | syl6bi 256 | . 2 ⊢ (𝑅 ∈ Ring → ((𝑋( ·𝑠 ‘𝐴)∅) ∈ (Base‘𝐴) → (𝑋( ·𝑠 ‘𝐴)∅) = ∅)) |
27 | 1, 23, 26 | sylc 65 | 1 ⊢ ((𝑅 ∈ Ring ∧ 𝑋 ∈ (Base‘𝑅)) → (𝑋( ·𝑠 ‘𝐴)∅) = ∅) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 400 = wceq 1539 ∈ wcel 2112 ∅c0 4226 {csn 4523 ‘cfv 6336 (class class class)co 7151 Fincfn 8528 Basecbs 16534 Scalarcsca 16619 ·𝑠 cvsca 16620 Ringcrg 19358 LModclmod 19695 Mat cmat 21100 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1912 ax-6 1971 ax-7 2016 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2159 ax-12 2176 ax-ext 2730 ax-rep 5157 ax-sep 5170 ax-nul 5177 ax-pow 5235 ax-pr 5299 ax-un 7460 ax-cnex 10624 ax-resscn 10625 ax-1cn 10626 ax-icn 10627 ax-addcl 10628 ax-addrcl 10629 ax-mulcl 10630 ax-mulrcl 10631 ax-mulcom 10632 ax-addass 10633 ax-mulass 10634 ax-distr 10635 ax-i2m1 10636 ax-1ne0 10637 ax-1rid 10638 ax-rnegex 10639 ax-rrecex 10640 ax-cnre 10641 ax-pre-lttri 10642 ax-pre-lttrn 10643 ax-pre-ltadd 10644 ax-pre-mulgt0 10645 |
This theorem depends on definitions: df-bi 210 df-an 401 df-or 846 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2071 df-mo 2558 df-eu 2589 df-clab 2737 df-cleq 2751 df-clel 2831 df-nfc 2902 df-ne 2953 df-nel 3057 df-ral 3076 df-rex 3077 df-reu 3078 df-rmo 3079 df-rab 3080 df-v 3412 df-sbc 3698 df-csb 3807 df-dif 3862 df-un 3864 df-in 3866 df-ss 3876 df-pss 3878 df-nul 4227 df-if 4422 df-pw 4497 df-sn 4524 df-pr 4526 df-tp 4528 df-op 4530 df-ot 4532 df-uni 4800 df-int 4840 df-iun 4886 df-br 5034 df-opab 5096 df-mpt 5114 df-tr 5140 df-id 5431 df-eprel 5436 df-po 5444 df-so 5445 df-fr 5484 df-we 5486 df-xp 5531 df-rel 5532 df-cnv 5533 df-co 5534 df-dm 5535 df-rn 5536 df-res 5537 df-ima 5538 df-pred 6127 df-ord 6173 df-on 6174 df-lim 6175 df-suc 6176 df-iota 6295 df-fun 6338 df-fn 6339 df-f 6340 df-f1 6341 df-fo 6342 df-f1o 6343 df-fv 6344 df-riota 7109 df-ov 7154 df-oprab 7155 df-mpo 7156 df-om 7581 df-1st 7694 df-2nd 7695 df-supp 7837 df-wrecs 7958 df-recs 8019 df-rdg 8057 df-1o 8113 df-oadd 8117 df-er 8300 df-map 8419 df-ixp 8481 df-en 8529 df-dom 8530 df-sdom 8531 df-fin 8532 df-fsupp 8860 df-sup 8932 df-pnf 10708 df-mnf 10709 df-xr 10710 df-ltxr 10711 df-le 10712 df-sub 10903 df-neg 10904 df-nn 11668 df-2 11730 df-3 11731 df-4 11732 df-5 11733 df-6 11734 df-7 11735 df-8 11736 df-9 11737 df-n0 11928 df-z 12014 df-dec 12131 df-uz 12276 df-fz 12933 df-struct 16536 df-ndx 16537 df-slot 16538 df-base 16540 df-sets 16541 df-ress 16542 df-plusg 16629 df-mulr 16630 df-sca 16632 df-vsca 16633 df-ip 16634 df-tset 16635 df-ple 16636 df-ds 16638 df-hom 16640 df-cco 16641 df-0g 16766 df-prds 16772 df-pws 16774 df-mgm 17911 df-sgrp 17960 df-mnd 17971 df-grp 18165 df-minusg 18166 df-sbg 18167 df-subg 18336 df-mgp 19301 df-ur 19313 df-ring 19360 df-subrg 19594 df-lmod 19697 df-lss 19765 df-sra 20005 df-rgmod 20006 df-dsmm 20490 df-frlm 20505 df-mat 21101 |
This theorem is referenced by: mat0scmat 21231 chpmat0d 21527 |
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