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| Mirrors > Home > MPE Home > Th. List > mat1ov | Structured version Visualization version GIF version | ||
| Description: Entries of an identity matrix, deduction form. (Contributed by Stefan O'Rear, 10-Jul-2018.) |
| Ref | Expression |
|---|---|
| mat1.a | ⊢ 𝐴 = (𝑁 Mat 𝑅) |
| mat1.o | ⊢ 1 = (1r‘𝑅) |
| mat1.z | ⊢ 0 = (0g‘𝑅) |
| mat1ov.n | ⊢ (𝜑 → 𝑁 ∈ Fin) |
| mat1ov.r | ⊢ (𝜑 → 𝑅 ∈ Ring) |
| mat1ov.i | ⊢ (𝜑 → 𝐼 ∈ 𝑁) |
| mat1ov.j | ⊢ (𝜑 → 𝐽 ∈ 𝑁) |
| mat1ov.u | ⊢ 𝑈 = (1r‘𝐴) |
| Ref | Expression |
|---|---|
| mat1ov | ⊢ (𝜑 → (𝐼𝑈𝐽) = if(𝐼 = 𝐽, 1 , 0 )) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mat1ov.u | . . 3 ⊢ 𝑈 = (1r‘𝐴) | |
| 2 | mat1ov.n | . . . 4 ⊢ (𝜑 → 𝑁 ∈ Fin) | |
| 3 | mat1ov.r | . . . 4 ⊢ (𝜑 → 𝑅 ∈ Ring) | |
| 4 | mat1.a | . . . . 5 ⊢ 𝐴 = (𝑁 Mat 𝑅) | |
| 5 | mat1.o | . . . . 5 ⊢ 1 = (1r‘𝑅) | |
| 6 | mat1.z | . . . . 5 ⊢ 0 = (0g‘𝑅) | |
| 7 | 4, 5, 6 | mat1 22360 | . . . 4 ⊢ ((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) → (1r‘𝐴) = (𝑖 ∈ 𝑁, 𝑗 ∈ 𝑁 ↦ if(𝑖 = 𝑗, 1 , 0 ))) |
| 8 | 2, 3, 7 | syl2anc 584 | . . 3 ⊢ (𝜑 → (1r‘𝐴) = (𝑖 ∈ 𝑁, 𝑗 ∈ 𝑁 ↦ if(𝑖 = 𝑗, 1 , 0 ))) |
| 9 | 1, 8 | eqtrid 2778 | . 2 ⊢ (𝜑 → 𝑈 = (𝑖 ∈ 𝑁, 𝑗 ∈ 𝑁 ↦ if(𝑖 = 𝑗, 1 , 0 ))) |
| 10 | eqeq12 2748 | . . . 4 ⊢ ((𝑖 = 𝐼 ∧ 𝑗 = 𝐽) → (𝑖 = 𝑗 ↔ 𝐼 = 𝐽)) | |
| 11 | 10 | ifbid 4499 | . . 3 ⊢ ((𝑖 = 𝐼 ∧ 𝑗 = 𝐽) → if(𝑖 = 𝑗, 1 , 0 ) = if(𝐼 = 𝐽, 1 , 0 )) |
| 12 | 11 | adantl 481 | . 2 ⊢ ((𝜑 ∧ (𝑖 = 𝐼 ∧ 𝑗 = 𝐽)) → if(𝑖 = 𝑗, 1 , 0 ) = if(𝐼 = 𝐽, 1 , 0 )) |
| 13 | mat1ov.i | . 2 ⊢ (𝜑 → 𝐼 ∈ 𝑁) | |
| 14 | mat1ov.j | . 2 ⊢ (𝜑 → 𝐽 ∈ 𝑁) | |
| 15 | 5 | fvexi 6836 | . . . 4 ⊢ 1 ∈ V |
| 16 | 6 | fvexi 6836 | . . . 4 ⊢ 0 ∈ V |
| 17 | 15, 16 | ifex 4526 | . . 3 ⊢ if(𝐼 = 𝐽, 1 , 0 ) ∈ V |
| 18 | 17 | a1i 11 | . 2 ⊢ (𝜑 → if(𝐼 = 𝐽, 1 , 0 ) ∈ V) |
| 19 | 9, 12, 13, 14, 18 | ovmpod 7498 | 1 ⊢ (𝜑 → (𝐼𝑈𝐽) = if(𝐼 = 𝐽, 1 , 0 )) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1541 ∈ wcel 2111 Vcvv 3436 ifcif 4475 ‘cfv 6481 (class class class)co 7346 ∈ cmpo 7348 Fincfn 8869 0gc0g 17340 1rcur 20097 Ringcrg 20149 Mat cmat 22320 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2113 ax-9 2121 ax-10 2144 ax-11 2160 ax-12 2180 ax-ext 2703 ax-rep 5217 ax-sep 5234 ax-nul 5244 ax-pow 5303 ax-pr 5370 ax-un 7668 ax-cnex 11059 ax-resscn 11060 ax-1cn 11061 ax-icn 11062 ax-addcl 11063 ax-addrcl 11064 ax-mulcl 11065 ax-mulrcl 11066 ax-mulcom 11067 ax-addass 11068 ax-mulass 11069 ax-distr 11070 ax-i2m1 11071 ax-1ne0 11072 ax-1rid 11073 ax-rnegex 11074 ax-rrecex 11075 ax-cnre 11076 ax-pre-lttri 11077 ax-pre-lttrn 11078 ax-pre-ltadd 11079 ax-pre-mulgt0 11080 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2535 df-eu 2564 df-clab 2710 df-cleq 2723 df-clel 2806 df-nfc 2881 df-ne 2929 df-nel 3033 df-ral 3048 df-rex 3057 df-rmo 3346 df-reu 3347 df-rab 3396 df-v 3438 df-sbc 3742 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4284 df-if 4476 df-pw 4552 df-sn 4577 df-pr 4579 df-tp 4581 df-op 4583 df-ot 4585 df-uni 4860 df-int 4898 df-iun 4943 df-iin 4944 df-br 5092 df-opab 5154 df-mpt 5173 df-tr 5199 df-id 5511 df-eprel 5516 df-po 5524 df-so 5525 df-fr 5569 df-se 5570 df-we 5571 df-xp 5622 df-rel 5623 df-cnv 5624 df-co 5625 df-dm 5626 df-rn 5627 df-res 5628 df-ima 5629 df-pred 6248 df-ord 6309 df-on 6310 df-lim 6311 df-suc 6312 df-iota 6437 df-fun 6483 df-fn 6484 df-f 6485 df-f1 6486 df-fo 6487 df-f1o 6488 df-fv 6489 df-isom 6490 df-riota 7303 df-ov 7349 df-oprab 7350 df-mpo 7351 df-of 7610 df-om 7797 df-1st 7921 df-2nd 7922 df-supp 8091 df-frecs 8211 df-wrecs 8242 df-recs 8291 df-rdg 8329 df-1o 8385 df-2o 8386 df-er 8622 df-map 8752 df-ixp 8822 df-en 8870 df-dom 8871 df-sdom 8872 df-fin 8873 df-fsupp 9246 df-sup 9326 df-oi 9396 df-card 9829 df-pnf 11145 df-mnf 11146 df-xr 11147 df-ltxr 11148 df-le 11149 df-sub 11343 df-neg 11344 df-nn 12123 df-2 12185 df-3 12186 df-4 12187 df-5 12188 df-6 12189 df-7 12190 df-8 12191 df-9 12192 df-n0 12379 df-z 12466 df-dec 12586 df-uz 12730 df-fz 13405 df-fzo 13552 df-seq 13906 df-hash 14235 df-struct 17055 df-sets 17072 df-slot 17090 df-ndx 17102 df-base 17118 df-ress 17139 df-plusg 17171 df-mulr 17172 df-sca 17174 df-vsca 17175 df-ip 17176 df-tset 17177 df-ple 17178 df-ds 17180 df-hom 17182 df-cco 17183 df-0g 17342 df-gsum 17343 df-prds 17348 df-pws 17350 df-mre 17485 df-mrc 17486 df-acs 17488 df-mgm 18545 df-sgrp 18624 df-mnd 18640 df-mhm 18688 df-submnd 18689 df-grp 18846 df-minusg 18847 df-sbg 18848 df-mulg 18978 df-subg 19033 df-ghm 19123 df-cntz 19227 df-cmn 19692 df-abl 19693 df-mgp 20057 df-rng 20069 df-ur 20098 df-ring 20151 df-subrg 20483 df-lmod 20793 df-lss 20863 df-sra 21105 df-rgmod 21106 df-dsmm 21667 df-frlm 21682 df-mamu 22304 df-mat 22321 |
| This theorem is referenced by: dmatid 22408 scmatscmide 22420 ma1repveval 22484 1marepvmarrepid 22488 1marepvsma1 22496 mdet1 22514 mdetunilem8 22532 pmat1ovd 22610 mat2pmat1 22645 chpmat1dlem 22748 chpdmatlem2 22752 chpdmatlem3 22753 chpidmat 22760 1smat1 33812 matunitlindflem2 37656 |
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