Mathbox for Thierry Arnoux |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > submatminr1 | Structured version Visualization version GIF version |
Description: If we take a submatrix by removing the row 𝐼 and column 𝐽, then the result is the same on the matrix with row 𝐼 and column 𝐽 modified by the minMatR1 operator. (Contributed by Thierry Arnoux, 25-Aug-2020.) |
Ref | Expression |
---|---|
submateq.a | ⊢ 𝐴 = ((1...𝑁) Mat 𝑅) |
submateq.b | ⊢ 𝐵 = (Base‘𝐴) |
submateq.n | ⊢ (𝜑 → 𝑁 ∈ ℕ) |
submateq.i | ⊢ (𝜑 → 𝐼 ∈ (1...𝑁)) |
submateq.j | ⊢ (𝜑 → 𝐽 ∈ (1...𝑁)) |
submatminr1.r | ⊢ (𝜑 → 𝑅 ∈ Ring) |
submatminr1.m | ⊢ (𝜑 → 𝑀 ∈ 𝐵) |
submatminr1.e | ⊢ 𝐸 = (𝐼(((1...𝑁) minMatR1 𝑅)‘𝑀)𝐽) |
Ref | Expression |
---|---|
submatminr1 | ⊢ (𝜑 → (𝐼(subMat1‘𝑀)𝐽) = (𝐼(subMat1‘𝐸)𝐽)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | submateq.a | . 2 ⊢ 𝐴 = ((1...𝑁) Mat 𝑅) | |
2 | submateq.b | . 2 ⊢ 𝐵 = (Base‘𝐴) | |
3 | submateq.n | . 2 ⊢ (𝜑 → 𝑁 ∈ ℕ) | |
4 | submateq.i | . 2 ⊢ (𝜑 → 𝐼 ∈ (1...𝑁)) | |
5 | submateq.j | . 2 ⊢ (𝜑 → 𝐽 ∈ (1...𝑁)) | |
6 | submatminr1.m | . 2 ⊢ (𝜑 → 𝑀 ∈ 𝐵) | |
7 | submatminr1.e | . . . 4 ⊢ 𝐸 = (𝐼(((1...𝑁) minMatR1 𝑅)‘𝑀)𝐽) | |
8 | submatminr1.r | . . . . . 6 ⊢ (𝜑 → 𝑅 ∈ Ring) | |
9 | eqid 2758 | . . . . . . 7 ⊢ (1r‘𝑅) = (1r‘𝑅) | |
10 | 1, 2, 9 | minmar1marrep 21355 | . . . . . 6 ⊢ ((𝑅 ∈ Ring ∧ 𝑀 ∈ 𝐵) → (((1...𝑁) minMatR1 𝑅)‘𝑀) = (𝑀((1...𝑁) matRRep 𝑅)(1r‘𝑅))) |
11 | 8, 6, 10 | syl2anc 587 | . . . . 5 ⊢ (𝜑 → (((1...𝑁) minMatR1 𝑅)‘𝑀) = (𝑀((1...𝑁) matRRep 𝑅)(1r‘𝑅))) |
12 | 11 | oveqd 7172 | . . . 4 ⊢ (𝜑 → (𝐼(((1...𝑁) minMatR1 𝑅)‘𝑀)𝐽) = (𝐼(𝑀((1...𝑁) matRRep 𝑅)(1r‘𝑅))𝐽)) |
13 | 7, 12 | syl5eq 2805 | . . 3 ⊢ (𝜑 → 𝐸 = (𝐼(𝑀((1...𝑁) matRRep 𝑅)(1r‘𝑅))𝐽)) |
14 | eqid 2758 | . . . . . 6 ⊢ (Base‘𝑅) = (Base‘𝑅) | |
15 | 14, 9 | ringidcl 19394 | . . . . 5 ⊢ (𝑅 ∈ Ring → (1r‘𝑅) ∈ (Base‘𝑅)) |
16 | 8, 15 | syl 17 | . . . 4 ⊢ (𝜑 → (1r‘𝑅) ∈ (Base‘𝑅)) |
17 | 1, 2 | marrepcl 21269 | . . . 4 ⊢ (((𝑅 ∈ Ring ∧ 𝑀 ∈ 𝐵 ∧ (1r‘𝑅) ∈ (Base‘𝑅)) ∧ (𝐼 ∈ (1...𝑁) ∧ 𝐽 ∈ (1...𝑁))) → (𝐼(𝑀((1...𝑁) matRRep 𝑅)(1r‘𝑅))𝐽) ∈ 𝐵) |
18 | 8, 6, 16, 4, 5, 17 | syl32anc 1375 | . . 3 ⊢ (𝜑 → (𝐼(𝑀((1...𝑁) matRRep 𝑅)(1r‘𝑅))𝐽) ∈ 𝐵) |
19 | 13, 18 | eqeltrd 2852 | . 2 ⊢ (𝜑 → 𝐸 ∈ 𝐵) |
20 | 13 | 3ad2ant1 1130 | . . . 4 ⊢ ((𝜑 ∧ 𝑖 ∈ ((1...𝑁) ∖ {𝐼}) ∧ 𝑗 ∈ ((1...𝑁) ∖ {𝐽})) → 𝐸 = (𝐼(𝑀((1...𝑁) matRRep 𝑅)(1r‘𝑅))𝐽)) |
21 | 20 | oveqd 7172 | . . 3 ⊢ ((𝜑 ∧ 𝑖 ∈ ((1...𝑁) ∖ {𝐼}) ∧ 𝑗 ∈ ((1...𝑁) ∖ {𝐽})) → (𝑖𝐸𝑗) = (𝑖(𝐼(𝑀((1...𝑁) matRRep 𝑅)(1r‘𝑅))𝐽)𝑗)) |
22 | 6 | 3ad2ant1 1130 | . . . 4 ⊢ ((𝜑 ∧ 𝑖 ∈ ((1...𝑁) ∖ {𝐼}) ∧ 𝑗 ∈ ((1...𝑁) ∖ {𝐽})) → 𝑀 ∈ 𝐵) |
23 | 16 | 3ad2ant1 1130 | . . . 4 ⊢ ((𝜑 ∧ 𝑖 ∈ ((1...𝑁) ∖ {𝐼}) ∧ 𝑗 ∈ ((1...𝑁) ∖ {𝐽})) → (1r‘𝑅) ∈ (Base‘𝑅)) |
24 | 4 | 3ad2ant1 1130 | . . . 4 ⊢ ((𝜑 ∧ 𝑖 ∈ ((1...𝑁) ∖ {𝐼}) ∧ 𝑗 ∈ ((1...𝑁) ∖ {𝐽})) → 𝐼 ∈ (1...𝑁)) |
25 | 5 | 3ad2ant1 1130 | . . . 4 ⊢ ((𝜑 ∧ 𝑖 ∈ ((1...𝑁) ∖ {𝐼}) ∧ 𝑗 ∈ ((1...𝑁) ∖ {𝐽})) → 𝐽 ∈ (1...𝑁)) |
26 | simp2 1134 | . . . . 5 ⊢ ((𝜑 ∧ 𝑖 ∈ ((1...𝑁) ∖ {𝐼}) ∧ 𝑗 ∈ ((1...𝑁) ∖ {𝐽})) → 𝑖 ∈ ((1...𝑁) ∖ {𝐼})) | |
27 | 26 | eldifad 3872 | . . . 4 ⊢ ((𝜑 ∧ 𝑖 ∈ ((1...𝑁) ∖ {𝐼}) ∧ 𝑗 ∈ ((1...𝑁) ∖ {𝐽})) → 𝑖 ∈ (1...𝑁)) |
28 | simp3 1135 | . . . . 5 ⊢ ((𝜑 ∧ 𝑖 ∈ ((1...𝑁) ∖ {𝐼}) ∧ 𝑗 ∈ ((1...𝑁) ∖ {𝐽})) → 𝑗 ∈ ((1...𝑁) ∖ {𝐽})) | |
29 | 28 | eldifad 3872 | . . . 4 ⊢ ((𝜑 ∧ 𝑖 ∈ ((1...𝑁) ∖ {𝐼}) ∧ 𝑗 ∈ ((1...𝑁) ∖ {𝐽})) → 𝑗 ∈ (1...𝑁)) |
30 | eqid 2758 | . . . . 5 ⊢ ((1...𝑁) matRRep 𝑅) = ((1...𝑁) matRRep 𝑅) | |
31 | eqid 2758 | . . . . 5 ⊢ (0g‘𝑅) = (0g‘𝑅) | |
32 | 1, 2, 30, 31 | marrepeval 21268 | . . . 4 ⊢ (((𝑀 ∈ 𝐵 ∧ (1r‘𝑅) ∈ (Base‘𝑅)) ∧ (𝐼 ∈ (1...𝑁) ∧ 𝐽 ∈ (1...𝑁)) ∧ (𝑖 ∈ (1...𝑁) ∧ 𝑗 ∈ (1...𝑁))) → (𝑖(𝐼(𝑀((1...𝑁) matRRep 𝑅)(1r‘𝑅))𝐽)𝑗) = if(𝑖 = 𝐼, if(𝑗 = 𝐽, (1r‘𝑅), (0g‘𝑅)), (𝑖𝑀𝑗))) |
33 | 22, 23, 24, 25, 27, 29, 32 | syl222anc 1383 | . . 3 ⊢ ((𝜑 ∧ 𝑖 ∈ ((1...𝑁) ∖ {𝐼}) ∧ 𝑗 ∈ ((1...𝑁) ∖ {𝐽})) → (𝑖(𝐼(𝑀((1...𝑁) matRRep 𝑅)(1r‘𝑅))𝐽)𝑗) = if(𝑖 = 𝐼, if(𝑗 = 𝐽, (1r‘𝑅), (0g‘𝑅)), (𝑖𝑀𝑗))) |
34 | eldifsn 4680 | . . . . . . 7 ⊢ (𝑖 ∈ ((1...𝑁) ∖ {𝐼}) ↔ (𝑖 ∈ (1...𝑁) ∧ 𝑖 ≠ 𝐼)) | |
35 | 26, 34 | sylib 221 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑖 ∈ ((1...𝑁) ∖ {𝐼}) ∧ 𝑗 ∈ ((1...𝑁) ∖ {𝐽})) → (𝑖 ∈ (1...𝑁) ∧ 𝑖 ≠ 𝐼)) |
36 | 35 | simprd 499 | . . . . 5 ⊢ ((𝜑 ∧ 𝑖 ∈ ((1...𝑁) ∖ {𝐼}) ∧ 𝑗 ∈ ((1...𝑁) ∖ {𝐽})) → 𝑖 ≠ 𝐼) |
37 | 36 | neneqd 2956 | . . . 4 ⊢ ((𝜑 ∧ 𝑖 ∈ ((1...𝑁) ∖ {𝐼}) ∧ 𝑗 ∈ ((1...𝑁) ∖ {𝐽})) → ¬ 𝑖 = 𝐼) |
38 | 37 | iffalsed 4434 | . . 3 ⊢ ((𝜑 ∧ 𝑖 ∈ ((1...𝑁) ∖ {𝐼}) ∧ 𝑗 ∈ ((1...𝑁) ∖ {𝐽})) → if(𝑖 = 𝐼, if(𝑗 = 𝐽, (1r‘𝑅), (0g‘𝑅)), (𝑖𝑀𝑗)) = (𝑖𝑀𝑗)) |
39 | 21, 33, 38 | 3eqtrrd 2798 | . 2 ⊢ ((𝜑 ∧ 𝑖 ∈ ((1...𝑁) ∖ {𝐼}) ∧ 𝑗 ∈ ((1...𝑁) ∖ {𝐽})) → (𝑖𝑀𝑗) = (𝑖𝐸𝑗)) |
40 | 1, 2, 3, 4, 5, 6, 19, 39 | submateq 31284 | 1 ⊢ (𝜑 → (𝐼(subMat1‘𝑀)𝐽) = (𝐼(subMat1‘𝐸)𝐽)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 399 ∧ w3a 1084 = wceq 1538 ∈ wcel 2111 ≠ wne 2951 ∖ cdif 3857 ifcif 4423 {csn 4525 ‘cfv 6339 (class class class)co 7155 1c1 10581 ℕcn 11679 ...cfz 12944 Basecbs 16546 0gc0g 16776 1rcur 19324 Ringcrg 19370 Mat cmat 21112 matRRep cmarrep 21261 minMatR1 cminmar1 21338 subMat1csmat 31268 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2729 ax-rep 5159 ax-sep 5172 ax-nul 5179 ax-pow 5237 ax-pr 5301 ax-un 7464 ax-cnex 10636 ax-resscn 10637 ax-1cn 10638 ax-icn 10639 ax-addcl 10640 ax-addrcl 10641 ax-mulcl 10642 ax-mulrcl 10643 ax-mulcom 10644 ax-addass 10645 ax-mulass 10646 ax-distr 10647 ax-i2m1 10648 ax-1ne0 10649 ax-1rid 10650 ax-rnegex 10651 ax-rrecex 10652 ax-cnre 10653 ax-pre-lttri 10654 ax-pre-lttrn 10655 ax-pre-ltadd 10656 ax-pre-mulgt0 10657 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3or 1085 df-3an 1086 df-tru 1541 df-fal 1551 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2557 df-eu 2588 df-clab 2736 df-cleq 2750 df-clel 2830 df-nfc 2901 df-ne 2952 df-nel 3056 df-ral 3075 df-rex 3076 df-reu 3077 df-rmo 3078 df-rab 3079 df-v 3411 df-sbc 3699 df-csb 3808 df-dif 3863 df-un 3865 df-in 3867 df-ss 3877 df-pss 3879 df-nul 4228 df-if 4424 df-pw 4499 df-sn 4526 df-pr 4528 df-tp 4530 df-op 4532 df-ot 4534 df-uni 4802 df-iun 4888 df-br 5036 df-opab 5098 df-mpt 5116 df-tr 5142 df-id 5433 df-eprel 5438 df-po 5446 df-so 5447 df-fr 5486 df-we 5488 df-xp 5533 df-rel 5534 df-cnv 5535 df-co 5536 df-dm 5537 df-rn 5538 df-res 5539 df-ima 5540 df-pred 6130 df-ord 6176 df-on 6177 df-lim 6178 df-suc 6179 df-iota 6298 df-fun 6341 df-fn 6342 df-f 6343 df-f1 6344 df-fo 6345 df-f1o 6346 df-fv 6347 df-riota 7113 df-ov 7158 df-oprab 7159 df-mpo 7160 df-om 7585 df-1st 7698 df-2nd 7699 df-supp 7841 df-wrecs 7962 df-recs 8023 df-rdg 8061 df-1o 8117 df-er 8304 df-map 8423 df-ixp 8485 df-en 8533 df-dom 8534 df-sdom 8535 df-fin 8536 df-fsupp 8872 df-sup 8944 df-pnf 10720 df-mnf 10721 df-xr 10722 df-ltxr 10723 df-le 10724 df-sub 10915 df-neg 10916 df-nn 11680 df-2 11742 df-3 11743 df-4 11744 df-5 11745 df-6 11746 df-7 11747 df-8 11748 df-9 11749 df-n0 11940 df-z 12026 df-dec 12143 df-uz 12288 df-fz 12945 df-fzo 13088 df-struct 16548 df-ndx 16549 df-slot 16550 df-base 16552 df-sets 16553 df-ress 16554 df-plusg 16641 df-mulr 16642 df-sca 16644 df-vsca 16645 df-ip 16646 df-tset 16647 df-ple 16648 df-ds 16650 df-hom 16652 df-cco 16653 df-0g 16778 df-prds 16784 df-pws 16786 df-mgm 17923 df-sgrp 17972 df-mnd 17983 df-grp 18177 df-mgp 19313 df-ur 19325 df-ring 19372 df-sra 20017 df-rgmod 20018 df-dsmm 20502 df-frlm 20517 df-mat 21113 df-marrep 21263 df-minmar1 21340 df-smat 31269 |
This theorem is referenced by: madjusmdetlem1 31302 |
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