Mathbox for Alexander van der Vekens |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > rngccat | Structured version Visualization version GIF version |
Description: The category of non-unital rings is a category. (Contributed by AV, 27-Feb-2020.) (Revised by AV, 9-Mar-2020.) |
Ref | Expression |
---|---|
rngccat.c | ⊢ 𝐶 = (RngCat‘𝑈) |
Ref | Expression |
---|---|
rngccat | ⊢ (𝑈 ∈ 𝑉 → 𝐶 ∈ Cat) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rngccat.c | . . 3 ⊢ 𝐶 = (RngCat‘𝑈) | |
2 | id 22 | . . 3 ⊢ (𝑈 ∈ 𝑉 → 𝑈 ∈ 𝑉) | |
3 | eqidd 2759 | . . 3 ⊢ (𝑈 ∈ 𝑉 → (𝑈 ∩ Rng) = (𝑈 ∩ Rng)) | |
4 | eqidd 2759 | . . 3 ⊢ (𝑈 ∈ 𝑉 → ( RngHomo ↾ ((𝑈 ∩ Rng) × (𝑈 ∩ Rng))) = ( RngHomo ↾ ((𝑈 ∩ Rng) × (𝑈 ∩ Rng)))) | |
5 | 1, 2, 3, 4 | rngcval 44981 | . 2 ⊢ (𝑈 ∈ 𝑉 → 𝐶 = ((ExtStrCat‘𝑈) ↾cat ( RngHomo ↾ ((𝑈 ∩ Rng) × (𝑈 ∩ Rng))))) |
6 | eqid 2758 | . . 3 ⊢ ((ExtStrCat‘𝑈) ↾cat ( RngHomo ↾ ((𝑈 ∩ Rng) × (𝑈 ∩ Rng)))) = ((ExtStrCat‘𝑈) ↾cat ( RngHomo ↾ ((𝑈 ∩ Rng) × (𝑈 ∩ Rng)))) | |
7 | eqid 2758 | . . . 4 ⊢ (ExtStrCat‘𝑈) = (ExtStrCat‘𝑈) | |
8 | eqidd 2759 | . . . 4 ⊢ (𝑈 ∈ 𝑉 → (Rng ∩ 𝑈) = (Rng ∩ 𝑈)) | |
9 | incom 4108 | . . . . . . 7 ⊢ (𝑈 ∩ Rng) = (Rng ∩ 𝑈) | |
10 | 9 | a1i 11 | . . . . . 6 ⊢ (𝑈 ∈ 𝑉 → (𝑈 ∩ Rng) = (Rng ∩ 𝑈)) |
11 | 10 | sqxpeqd 5559 | . . . . 5 ⊢ (𝑈 ∈ 𝑉 → ((𝑈 ∩ Rng) × (𝑈 ∩ Rng)) = ((Rng ∩ 𝑈) × (Rng ∩ 𝑈))) |
12 | 11 | reseq2d 5827 | . . . 4 ⊢ (𝑈 ∈ 𝑉 → ( RngHomo ↾ ((𝑈 ∩ Rng) × (𝑈 ∩ Rng))) = ( RngHomo ↾ ((Rng ∩ 𝑈) × (Rng ∩ 𝑈)))) |
13 | 7, 2, 8, 12 | rnghmsubcsetc 44996 | . . 3 ⊢ (𝑈 ∈ 𝑉 → ( RngHomo ↾ ((𝑈 ∩ Rng) × (𝑈 ∩ Rng))) ∈ (Subcat‘(ExtStrCat‘𝑈))) |
14 | 6, 13 | subccat 17182 | . 2 ⊢ (𝑈 ∈ 𝑉 → ((ExtStrCat‘𝑈) ↾cat ( RngHomo ↾ ((𝑈 ∩ Rng) × (𝑈 ∩ Rng)))) ∈ Cat) |
15 | 5, 14 | eqeltrd 2852 | 1 ⊢ (𝑈 ∈ 𝑉 → 𝐶 ∈ Cat) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1538 ∈ wcel 2111 ∩ cin 3859 × cxp 5525 ↾ cres 5529 ‘cfv 6339 (class class class)co 7155 Catccat 16998 ↾cat cresc 17142 ExtStrCatcestrc 17443 Rngcrng 44893 RngHomo crngh 44904 RngCatcrngc 44976 |
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-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-wrecs 7962 df-recs 8023 df-rdg 8061 df-1o 8117 df-er 8304 df-map 8423 df-pm 8424 df-ixp 8485 df-en 8533 df-dom 8534 df-sdom 8535 df-fin 8536 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-struct 16548 df-ndx 16549 df-slot 16550 df-base 16552 df-sets 16553 df-ress 16554 df-plusg 16641 df-hom 16652 df-cco 16653 df-0g 16778 df-cat 17002 df-cid 17003 df-homf 17004 df-ssc 17144 df-resc 17145 df-subc 17146 df-estrc 17444 df-mgm 17923 df-sgrp 17972 df-mnd 17983 df-mhm 18027 df-grp 18177 df-ghm 18428 df-abl 18981 df-mgp 19313 df-mgmhm 44794 df-rng0 44894 df-rnghomo 44906 df-rngc 44978 |
This theorem is referenced by: rngcsect 44999 rngcinv 45000 rngciso 45001 zrinitorngc 45019 zrtermorngc 45020 zrzeroorngc 45021 rhmsubcrngc 45048 rhmsubc 45109 |
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