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Mirrors > Home > MPE Home > Th. List > scmatsrng1 | Structured version Visualization version GIF version |
Description: The set of scalar matrices is a subring of the ring of diagonal matrices. (Contributed by AV, 21-Aug-2019.) |
Ref | Expression |
---|---|
scmatid.a | ⊢ 𝐴 = (𝑁 Mat 𝑅) |
scmatid.b | ⊢ 𝐵 = (Base‘𝐴) |
scmatid.e | ⊢ 𝐸 = (Base‘𝑅) |
scmatid.0 | ⊢ 0 = (0g‘𝑅) |
scmatid.s | ⊢ 𝑆 = (𝑁 ScMat 𝑅) |
scmatsgrp1.d | ⊢ 𝐷 = (𝑁 DMat 𝑅) |
scmatsgrp1.c | ⊢ 𝐶 = (𝐴 ↾s 𝐷) |
Ref | Expression |
---|---|
scmatsrng1 | ⊢ ((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) → 𝑆 ∈ (SubRing‘𝐶)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | scmatid.a | . . 3 ⊢ 𝐴 = (𝑁 Mat 𝑅) | |
2 | scmatid.b | . . 3 ⊢ 𝐵 = (Base‘𝐴) | |
3 | scmatid.e | . . 3 ⊢ 𝐸 = (Base‘𝑅) | |
4 | scmatid.0 | . . 3 ⊢ 0 = (0g‘𝑅) | |
5 | scmatid.s | . . 3 ⊢ 𝑆 = (𝑁 ScMat 𝑅) | |
6 | scmatsgrp1.d | . . 3 ⊢ 𝐷 = (𝑁 DMat 𝑅) | |
7 | scmatsgrp1.c | . . 3 ⊢ 𝐶 = (𝐴 ↾s 𝐷) | |
8 | 1, 2, 3, 4, 5, 6, 7 | scmatsgrp1 21671 | . 2 ⊢ ((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) → 𝑆 ∈ (SubGrp‘𝐶)) |
9 | 1, 2, 4, 6 | dmatsrng 21650 | . . . . . 6 ⊢ ((𝑅 ∈ Ring ∧ 𝑁 ∈ Fin) → 𝐷 ∈ (SubRing‘𝐴)) |
10 | 9 | ancoms 459 | . . . . 5 ⊢ ((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) → 𝐷 ∈ (SubRing‘𝐴)) |
11 | eqid 2738 | . . . . . 6 ⊢ (1r‘𝐴) = (1r‘𝐴) | |
12 | 7, 11 | subrg1 20034 | . . . . 5 ⊢ (𝐷 ∈ (SubRing‘𝐴) → (1r‘𝐴) = (1r‘𝐶)) |
13 | 10, 12 | syl 17 | . . . 4 ⊢ ((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) → (1r‘𝐴) = (1r‘𝐶)) |
14 | 13 | eqcomd 2744 | . . 3 ⊢ ((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) → (1r‘𝐶) = (1r‘𝐴)) |
15 | 1, 2, 3, 4, 5 | scmatid 21663 | . . 3 ⊢ ((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) → (1r‘𝐴) ∈ 𝑆) |
16 | 14, 15 | eqeltrd 2839 | . 2 ⊢ ((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) → (1r‘𝐶) ∈ 𝑆) |
17 | eqid 2738 | . . . . . . . 8 ⊢ (.r‘𝐴) = (.r‘𝐴) | |
18 | 7, 17 | ressmulr 17017 | . . . . . . 7 ⊢ (𝐷 ∈ (SubRing‘𝐴) → (.r‘𝐴) = (.r‘𝐶)) |
19 | 10, 18 | syl 17 | . . . . . 6 ⊢ ((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) → (.r‘𝐴) = (.r‘𝐶)) |
20 | 19 | eqcomd 2744 | . . . . 5 ⊢ ((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) → (.r‘𝐶) = (.r‘𝐴)) |
21 | 20 | oveqdr 7303 | . . . 4 ⊢ (((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) ∧ (𝑥 ∈ 𝑆 ∧ 𝑦 ∈ 𝑆)) → (𝑥(.r‘𝐶)𝑦) = (𝑥(.r‘𝐴)𝑦)) |
22 | 1, 2, 3, 4, 5 | scmatmulcl 21667 | . . . 4 ⊢ (((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) ∧ (𝑥 ∈ 𝑆 ∧ 𝑦 ∈ 𝑆)) → (𝑥(.r‘𝐴)𝑦) ∈ 𝑆) |
23 | 21, 22 | eqeltrd 2839 | . . 3 ⊢ (((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) ∧ (𝑥 ∈ 𝑆 ∧ 𝑦 ∈ 𝑆)) → (𝑥(.r‘𝐶)𝑦) ∈ 𝑆) |
24 | 23 | ralrimivva 3123 | . 2 ⊢ ((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) → ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑆 (𝑥(.r‘𝐶)𝑦) ∈ 𝑆) |
25 | 7 | subrgring 20027 | . . 3 ⊢ (𝐷 ∈ (SubRing‘𝐴) → 𝐶 ∈ Ring) |
26 | eqid 2738 | . . . 4 ⊢ (Base‘𝐶) = (Base‘𝐶) | |
27 | eqid 2738 | . . . 4 ⊢ (1r‘𝐶) = (1r‘𝐶) | |
28 | eqid 2738 | . . . 4 ⊢ (.r‘𝐶) = (.r‘𝐶) | |
29 | 26, 27, 28 | issubrg2 20044 | . . 3 ⊢ (𝐶 ∈ Ring → (𝑆 ∈ (SubRing‘𝐶) ↔ (𝑆 ∈ (SubGrp‘𝐶) ∧ (1r‘𝐶) ∈ 𝑆 ∧ ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑆 (𝑥(.r‘𝐶)𝑦) ∈ 𝑆))) |
30 | 10, 25, 29 | 3syl 18 | . 2 ⊢ ((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) → (𝑆 ∈ (SubRing‘𝐶) ↔ (𝑆 ∈ (SubGrp‘𝐶) ∧ (1r‘𝐶) ∈ 𝑆 ∧ ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑆 (𝑥(.r‘𝐶)𝑦) ∈ 𝑆))) |
31 | 8, 16, 24, 30 | mpbir3and 1341 | 1 ⊢ ((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) → 𝑆 ∈ (SubRing‘𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 ∧ w3a 1086 = wceq 1539 ∈ wcel 2106 ∀wral 3064 ‘cfv 6433 (class class class)co 7275 Fincfn 8733 Basecbs 16912 ↾s cress 16941 .rcmulr 16963 0gc0g 17150 SubGrpcsubg 18749 1rcur 19737 Ringcrg 19783 SubRingcsubrg 20020 Mat cmat 21554 DMat cdmat 21637 ScMat cscmat 21638 |
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 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-rep 5209 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-rmo 3071 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-tp 4566 df-op 4568 df-ot 4570 df-uni 4840 df-int 4880 df-iun 4926 df-iin 4927 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-se 5545 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-isom 6442 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-of 7533 df-om 7713 df-1st 7831 df-2nd 7832 df-supp 7978 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-1o 8297 df-er 8498 df-map 8617 df-ixp 8686 df-en 8734 df-dom 8735 df-sdom 8736 df-fin 8737 df-fsupp 9129 df-sup 9201 df-oi 9269 df-card 9697 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-nn 11974 df-2 12036 df-3 12037 df-4 12038 df-5 12039 df-6 12040 df-7 12041 df-8 12042 df-9 12043 df-n0 12234 df-z 12320 df-dec 12438 df-uz 12583 df-fz 13240 df-fzo 13383 df-seq 13722 df-hash 14045 df-struct 16848 df-sets 16865 df-slot 16883 df-ndx 16895 df-base 16913 df-ress 16942 df-plusg 16975 df-mulr 16976 df-sca 16978 df-vsca 16979 df-ip 16980 df-tset 16981 df-ple 16982 df-ds 16984 df-hom 16986 df-cco 16987 df-0g 17152 df-gsum 17153 df-prds 17158 df-pws 17160 df-mre 17295 df-mrc 17296 df-acs 17298 df-mgm 18326 df-sgrp 18375 df-mnd 18386 df-mhm 18430 df-submnd 18431 df-grp 18580 df-minusg 18581 df-sbg 18582 df-mulg 18701 df-subg 18752 df-ghm 18832 df-cntz 18923 df-cmn 19388 df-abl 19389 df-mgp 19721 df-ur 19738 df-ring 19785 df-subrg 20022 df-lmod 20125 df-lss 20194 df-sra 20434 df-rgmod 20435 df-dsmm 20939 df-frlm 20954 df-mamu 21533 df-mat 21555 df-dmat 21639 df-scmat 21640 |
This theorem is referenced by: (None) |
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