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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 22487 | . . . 4 ⊢ ((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) → (1r‘𝐴) = (𝑖 ∈ 𝑁, 𝑗 ∈ 𝑁 ↦ if(𝑖 = 𝑗, 1 , 0 ))) |
| 8 | 2, 3, 7 | syl2anc 593 | . . 3 ⊢ (𝜑 → (1r‘𝐴) = (𝑖 ∈ 𝑁, 𝑗 ∈ 𝑁 ↦ if(𝑖 = 𝑗, 1 , 0 ))) |
| 9 | 1, 8 | eqtrid 2808 | . 2 ⊢ (𝜑 → 𝑈 = (𝑖 ∈ 𝑁, 𝑗 ∈ 𝑁 ↦ if(𝑖 = 𝑗, 1 , 0 ))) |
| 10 | eqeq12 2778 | . . . 4 ⊢ ((𝑖 = 𝐼 ∧ 𝑗 = 𝐽) → (𝑖 = 𝑗 ↔ 𝐼 = 𝐽)) | |
| 11 | 10 | ifbid 4503 | . . 3 ⊢ ((𝑖 = 𝐼 ∧ 𝑗 = 𝐽) → if(𝑖 = 𝑗, 1 , 0 ) = if(𝐼 = 𝐽, 1 , 0 )) |
| 12 | 11 | adantl 485 | . 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 6877 | . . . 4 ⊢ 1 ∈ V |
| 16 | 6 | fvexi 6877 | . . . 4 ⊢ 0 ∈ V |
| 17 | 15, 16 | ifex 4530 | . . 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 7544 | 1 ⊢ (𝜑 → (𝐼𝑈𝐽) = if(𝐼 = 𝐽, 1 , 0 )) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 = wceq 1559 ∈ wcel 2141 Vcvv 3453 ifcif 4479 ‘cfv 6517 (class class class)co 7392 ∈ cmpo 7394 Fincfn 8923 0gc0g 17451 1rcur 20210 Ringcrg 20262 Mat cmat 22447 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-rep 5226 ax-sep 5245 ax-nul 5255 ax-pow 5321 ax-pr 5389 ax-un 7714 ax-cnex 11126 ax-resscn 11127 ax-1cn 11128 ax-icn 11129 ax-addcl 11130 ax-addrcl 11131 ax-mulcl 11132 ax-mulrcl 11133 ax-mulcom 11134 ax-addass 11135 ax-mulass 11136 ax-distr 11137 ax-i2m1 11138 ax-1ne0 11139 ax-1rid 11140 ax-rnegex 11141 ax-rrecex 11142 ax-cnre 11143 ax-pre-lttri 11144 ax-pre-lttrn 11145 ax-pre-ltadd 11146 ax-pre-mulgt0 11147 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3061 df-ral 3076 df-rex 3086 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3745 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4582 df-pr 4584 df-tp 4586 df-op 4588 df-ot 4590 df-uni 4865 df-int 4905 df-iun 4950 df-iin 4951 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5540 df-eprel 5545 df-po 5553 df-so 5554 df-fr 5598 df-se 5599 df-we 5600 df-xp 5651 df-rel 5652 df-cnv 5653 df-co 5654 df-dm 5655 df-rn 5656 df-res 5657 df-ima 5658 df-pred 6284 df-ord 6345 df-on 6346 df-lim 6347 df-suc 6348 df-iota 6473 df-fun 6519 df-fn 6520 df-f 6521 df-f1 6522 df-fo 6523 df-f1o 6524 df-fv 6525 df-isom 6526 df-riota 7349 df-ov 7395 df-oprab 7396 df-mpo 7397 df-of 7656 df-om 7843 df-1st 7966 df-2nd 7967 df-supp 8136 df-frecs 8257 df-wrecs 8288 df-recs 8337 df-rdg 8376 df-1o 8432 df-2o 8433 df-er 8673 df-map 8805 df-ixp 8876 df-en 8924 df-dom 8925 df-sdom 8926 df-fin 8927 df-fsupp 9305 df-sup 9385 df-oi 9455 df-card 9894 df-pnf 11215 df-mnf 11216 df-xr 11217 df-ltxr 11218 df-le 11219 df-sub 11413 df-neg 11414 df-nn 12208 df-2 12277 df-3 12278 df-4 12279 df-5 12280 df-6 12281 df-7 12282 df-8 12283 df-9 12284 df-n0 12479 df-z 12566 df-dec 12686 df-uz 12837 df-fz 13510 df-fzo 13657 df-seq 14012 df-hash 14341 df-struct 17166 df-sets 17183 df-slot 17201 df-ndx 17213 df-base 17229 df-ress 17250 df-plusg 17282 df-mulr 17283 df-sca 17285 df-vsca 17286 df-ip 17287 df-tset 17288 df-ple 17289 df-ds 17291 df-hom 17293 df-cco 17294 df-0g 17453 df-gsum 17454 df-prds 17459 df-pws 17461 df-mre 17597 df-mrc 17598 df-acs 17600 df-mgm 18657 df-sgrp 18736 df-mnd 18752 df-mhm 18800 df-submnd 18801 df-grp 18961 df-minusg 18962 df-sbg 18963 df-mulg 19093 df-subg 19148 df-ghm 19237 df-cntz 19340 df-cmn 19805 df-abl 19806 df-mgp 20170 df-rng 20182 df-ur 20211 df-ring 20264 df-subrg 20599 df-lmod 20909 df-lss 20979 df-sra 21220 df-rgmod 21221 df-dsmm 21764 df-frlm 21779 df-mamu 22431 df-mat 22448 |
| This theorem is referenced by: dmatid 22535 scmatscmide 22547 ma1repveval 22611 1marepvmarrepid 22615 1marepvsma1 22623 mdet1 22641 mdetunilem8 22659 pmat1ovd 22737 mat2pmat1 22772 chpmat1dlem 22875 chpdmatlem2 22879 chpdmatlem3 22880 chpidmat 22887 1smat1 34062 matunitlindflem2 38080 |
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