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Mirrors > Home > MPE Home > Th. List > mattposm | Structured version Visualization version GIF version |
Description: Multiplying two transposed matrices results in the transposition of the product of the two matrices. (Contributed by Stefan O'Rear, 17-Jul-2018.) |
Ref | Expression |
---|---|
mattposm.a | ⊢ 𝐴 = (𝑁 Mat 𝑅) |
mattposm.b | ⊢ 𝐵 = (Base‘𝐴) |
mattposm.t | ⊢ · = (.r‘𝐴) |
Ref | Expression |
---|---|
mattposm | ⊢ ((𝑅 ∈ CRing ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → tpos (𝑋 · 𝑌) = (tpos 𝑌 · tpos 𝑋)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2622 | . . 3 ⊢ (𝑅 maMul 〈𝑁, 𝑁, 𝑁〉) = (𝑅 maMul 〈𝑁, 𝑁, 𝑁〉) | |
2 | eqid 2622 | . . 3 ⊢ (Base‘𝑅) = (Base‘𝑅) | |
3 | simp1 1061 | . . 3 ⊢ ((𝑅 ∈ CRing ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → 𝑅 ∈ CRing) | |
4 | mattposm.a | . . . . . 6 ⊢ 𝐴 = (𝑁 Mat 𝑅) | |
5 | mattposm.b | . . . . . 6 ⊢ 𝐵 = (Base‘𝐴) | |
6 | 4, 5 | matrcl 20218 | . . . . 5 ⊢ (𝑌 ∈ 𝐵 → (𝑁 ∈ Fin ∧ 𝑅 ∈ V)) |
7 | 6 | simpld 475 | . . . 4 ⊢ (𝑌 ∈ 𝐵 → 𝑁 ∈ Fin) |
8 | 7 | 3ad2ant3 1084 | . . 3 ⊢ ((𝑅 ∈ CRing ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → 𝑁 ∈ Fin) |
9 | 4, 2, 5 | matbas2i 20228 | . . . 4 ⊢ (𝑋 ∈ 𝐵 → 𝑋 ∈ ((Base‘𝑅) ↑𝑚 (𝑁 × 𝑁))) |
10 | 9 | 3ad2ant2 1083 | . . 3 ⊢ ((𝑅 ∈ CRing ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → 𝑋 ∈ ((Base‘𝑅) ↑𝑚 (𝑁 × 𝑁))) |
11 | 4, 2, 5 | matbas2i 20228 | . . . 4 ⊢ (𝑌 ∈ 𝐵 → 𝑌 ∈ ((Base‘𝑅) ↑𝑚 (𝑁 × 𝑁))) |
12 | 11 | 3ad2ant3 1084 | . . 3 ⊢ ((𝑅 ∈ CRing ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → 𝑌 ∈ ((Base‘𝑅) ↑𝑚 (𝑁 × 𝑁))) |
13 | 1, 1, 2, 3, 8, 8, 8, 10, 12 | mamutpos 20264 | . 2 ⊢ ((𝑅 ∈ CRing ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → tpos (𝑋(𝑅 maMul 〈𝑁, 𝑁, 𝑁〉)𝑌) = (tpos 𝑌(𝑅 maMul 〈𝑁, 𝑁, 𝑁〉)tpos 𝑋)) |
14 | 4, 1 | matmulr 20244 | . . . . . 6 ⊢ ((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing) → (𝑅 maMul 〈𝑁, 𝑁, 𝑁〉) = (.r‘𝐴)) |
15 | 8, 3, 14 | syl2anc 693 | . . . . 5 ⊢ ((𝑅 ∈ CRing ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑅 maMul 〈𝑁, 𝑁, 𝑁〉) = (.r‘𝐴)) |
16 | mattposm.t | . . . . 5 ⊢ · = (.r‘𝐴) | |
17 | 15, 16 | syl6reqr 2675 | . . . 4 ⊢ ((𝑅 ∈ CRing ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → · = (𝑅 maMul 〈𝑁, 𝑁, 𝑁〉)) |
18 | 17 | oveqd 6667 | . . 3 ⊢ ((𝑅 ∈ CRing ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 · 𝑌) = (𝑋(𝑅 maMul 〈𝑁, 𝑁, 𝑁〉)𝑌)) |
19 | 18 | tposeqd 7355 | . 2 ⊢ ((𝑅 ∈ CRing ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → tpos (𝑋 · 𝑌) = tpos (𝑋(𝑅 maMul 〈𝑁, 𝑁, 𝑁〉)𝑌)) |
20 | 17 | oveqd 6667 | . 2 ⊢ ((𝑅 ∈ CRing ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (tpos 𝑌 · tpos 𝑋) = (tpos 𝑌(𝑅 maMul 〈𝑁, 𝑁, 𝑁〉)tpos 𝑋)) |
21 | 13, 19, 20 | 3eqtr4d 2666 | 1 ⊢ ((𝑅 ∈ CRing ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → tpos (𝑋 · 𝑌) = (tpos 𝑌 · tpos 𝑋)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ w3a 1037 = wceq 1483 ∈ wcel 1990 Vcvv 3200 〈cotp 4185 × cxp 5112 ‘cfv 5888 (class class class)co 6650 tpos ctpos 7351 ↑𝑚 cmap 7857 Fincfn 7955 Basecbs 15857 .rcmulr 15942 CRingccrg 18548 maMul cmmul 20189 Mat cmat 20213 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-rep 4771 ax-sep 4781 ax-nul 4789 ax-pow 4843 ax-pr 4906 ax-un 6949 ax-cnex 9992 ax-resscn 9993 ax-1cn 9994 ax-icn 9995 ax-addcl 9996 ax-addrcl 9997 ax-mulcl 9998 ax-mulrcl 9999 ax-mulcom 10000 ax-addass 10001 ax-mulass 10002 ax-distr 10003 ax-i2m1 10004 ax-1ne0 10005 ax-1rid 10006 ax-rnegex 10007 ax-rrecex 10008 ax-cnre 10009 ax-pre-lttri 10010 ax-pre-lttrn 10011 ax-pre-ltadd 10012 ax-pre-mulgt0 10013 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3or 1038 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-nel 2898 df-ral 2917 df-rex 2918 df-reu 2919 df-rab 2921 df-v 3202 df-sbc 3436 df-csb 3534 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-pss 3590 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-tp 4182 df-op 4184 df-ot 4186 df-uni 4437 df-int 4476 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-tr 4753 df-id 5024 df-eprel 5029 df-po 5035 df-so 5036 df-fr 5073 df-we 5075 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-pred 5680 df-ord 5726 df-on 5727 df-lim 5728 df-suc 5729 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-riota 6611 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-om 7066 df-1st 7168 df-2nd 7169 df-supp 7296 df-tpos 7352 df-wrecs 7407 df-recs 7468 df-rdg 7506 df-1o 7560 df-oadd 7564 df-er 7742 df-map 7859 df-ixp 7909 df-en 7956 df-dom 7957 df-sdom 7958 df-fin 7959 df-fsupp 8276 df-sup 8348 df-pnf 10076 df-mnf 10077 df-xr 10078 df-ltxr 10079 df-le 10080 df-sub 10268 df-neg 10269 df-nn 11021 df-2 11079 df-3 11080 df-4 11081 df-5 11082 df-6 11083 df-7 11084 df-8 11085 df-9 11086 df-n0 11293 df-z 11378 df-dec 11494 df-uz 11688 df-fz 12327 df-struct 15859 df-ndx 15860 df-slot 15861 df-base 15863 df-sets 15864 df-ress 15865 df-plusg 15954 df-mulr 15955 df-sca 15957 df-vsca 15958 df-ip 15959 df-tset 15960 df-ple 15961 df-ds 15964 df-hom 15966 df-cco 15967 df-0g 16102 df-prds 16108 df-pws 16110 df-cmn 18195 df-mgp 18490 df-cring 18550 df-sra 19172 df-rgmod 19173 df-dsmm 20076 df-frlm 20091 df-mamu 20190 df-mat 20214 |
This theorem is referenced by: madulid 20451 |
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