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| Mirrors > Home > MPE Home > Th. List > rnghmsubcsetc | Structured version Visualization version GIF version | ||
| Description: The non-unital ring homomorphisms between non-unital rings (in a universe) are a subcategory of the category of extensible structures. (Contributed by AV, 9-Mar-2020.) |
| Ref | Expression |
|---|---|
| rnghmsubcsetc.c | ⊢ 𝐶 = (ExtStrCat‘𝑈) |
| rnghmsubcsetc.u | ⊢ (𝜑 → 𝑈 ∈ 𝑉) |
| rnghmsubcsetc.b | ⊢ (𝜑 → 𝐵 = (Rng ∩ 𝑈)) |
| rnghmsubcsetc.h | ⊢ (𝜑 → 𝐻 = ( RngHom ↾ (𝐵 × 𝐵))) |
| Ref | Expression |
|---|---|
| rnghmsubcsetc | ⊢ (𝜑 → 𝐻 ∈ (Subcat‘𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rnghmsubcsetc.u | . . . 4 ⊢ (𝜑 → 𝑈 ∈ 𝑉) | |
| 2 | rnghmsubcsetc.b | . . . 4 ⊢ (𝜑 → 𝐵 = (Rng ∩ 𝑈)) | |
| 3 | 1, 2 | rnghmsscmap 20740 | . . 3 ⊢ (𝜑 → ( RngHom ↾ (𝐵 × 𝐵)) ⊆cat (𝑥 ∈ 𝑈, 𝑦 ∈ 𝑈 ↦ ((Base‘𝑦) ↑m (Base‘𝑥)))) |
| 4 | rnghmsubcsetc.h | . . 3 ⊢ (𝜑 → 𝐻 = ( RngHom ↾ (𝐵 × 𝐵))) | |
| 5 | rnghmsubcsetc.c | . . . . 5 ⊢ 𝐶 = (ExtStrCat‘𝑈) | |
| 6 | eqid 2762 | . . . . 5 ⊢ (Hom ‘𝐶) = (Hom ‘𝐶) | |
| 7 | 5, 1, 6 | estrchomfeqhom 18198 | . . . 4 ⊢ (𝜑 → (Homf ‘𝐶) = (Hom ‘𝐶)) |
| 8 | 5, 1, 6 | estrchomfval 18188 | . . . 4 ⊢ (𝜑 → (Hom ‘𝐶) = (𝑥 ∈ 𝑈, 𝑦 ∈ 𝑈 ↦ ((Base‘𝑦) ↑m (Base‘𝑥)))) |
| 9 | 7, 8 | eqtrd 2797 | . . 3 ⊢ (𝜑 → (Homf ‘𝐶) = (𝑥 ∈ 𝑈, 𝑦 ∈ 𝑈 ↦ ((Base‘𝑦) ↑m (Base‘𝑥)))) |
| 10 | 3, 4, 9 | 3brtr4d 5142 | . 2 ⊢ (𝜑 → 𝐻 ⊆cat (Homf ‘𝐶)) |
| 11 | 5, 1, 2, 4 | rnghmsubcsetclem1 20741 | . . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐵) → ((Id‘𝐶)‘𝑥) ∈ (𝑥𝐻𝑥)) |
| 12 | 5, 1, 2, 4 | rnghmsubcsetclem2 20742 | . . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐵) → ∀𝑦 ∈ 𝐵 ∀𝑧 ∈ 𝐵 ∀𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)(𝑔(〈𝑥, 𝑦〉(comp‘𝐶)𝑧)𝑓) ∈ (𝑥𝐻𝑧)) |
| 13 | 11, 12 | jca 520 | . . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐵) → (((Id‘𝐶)‘𝑥) ∈ (𝑥𝐻𝑥) ∧ ∀𝑦 ∈ 𝐵 ∀𝑧 ∈ 𝐵 ∀𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)(𝑔(〈𝑥, 𝑦〉(comp‘𝐶)𝑧)𝑓) ∈ (𝑥𝐻𝑧))) |
| 14 | 13 | ralrimiva 3156 | . 2 ⊢ (𝜑 → ∀𝑥 ∈ 𝐵 (((Id‘𝐶)‘𝑥) ∈ (𝑥𝐻𝑥) ∧ ∀𝑦 ∈ 𝐵 ∀𝑧 ∈ 𝐵 ∀𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)(𝑔(〈𝑥, 𝑦〉(comp‘𝐶)𝑧)𝑓) ∈ (𝑥𝐻𝑧))) |
| 15 | eqid 2762 | . . 3 ⊢ (Homf ‘𝐶) = (Homf ‘𝐶) | |
| 16 | eqid 2762 | . . 3 ⊢ (Id‘𝐶) = (Id‘𝐶) | |
| 17 | eqid 2762 | . . 3 ⊢ (comp‘𝐶) = (comp‘𝐶) | |
| 18 | 5 | estrccat 18195 | . . . 4 ⊢ (𝑈 ∈ 𝑉 → 𝐶 ∈ Cat) |
| 19 | 1, 18 | syl 18 | . . 3 ⊢ (𝜑 → 𝐶 ∈ Cat) |
| 20 | incom 4161 | . . . . 5 ⊢ (Rng ∩ 𝑈) = (𝑈 ∩ Rng) | |
| 21 | 2, 20 | eqtrdi 2813 | . . . 4 ⊢ (𝜑 → 𝐵 = (𝑈 ∩ Rng)) |
| 22 | 21, 4 | rnghmresfn 20729 | . . 3 ⊢ (𝜑 → 𝐻 Fn (𝐵 × 𝐵)) |
| 23 | 15, 16, 17, 19, 22 | issubc2 17899 | . 2 ⊢ (𝜑 → (𝐻 ∈ (Subcat‘𝐶) ↔ (𝐻 ⊆cat (Homf ‘𝐶) ∧ ∀𝑥 ∈ 𝐵 (((Id‘𝐶)‘𝑥) ∈ (𝑥𝐻𝑥) ∧ ∀𝑦 ∈ 𝐵 ∀𝑧 ∈ 𝐵 ∀𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)(𝑔(〈𝑥, 𝑦〉(comp‘𝐶)𝑧)𝑓) ∈ (𝑥𝐻𝑧))))) |
| 24 | 10, 14, 23 | mpbir2and 725 | 1 ⊢ (𝜑 → 𝐻 ∈ (Subcat‘𝐶)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 400 = wceq 1569 ∈ wcel 2142 ∀wral 3078 ∩ cin 3903 〈cop 4594 class class class wbr 5108 × cxp 5658 ↾ cres 5662 ‘cfv 6536 (class class class)co 7412 ∈ cmpo 7414 ↑m cmap 8822 Basecbs 17275 Hom chom 17327 compcco 17328 Catccat 17726 Idccid 17727 Homf chomf 17728 ⊆cat cssc 17870 Subcatcsubc 17872 ExtStrCatcestrc 18184 Rngcrng 20236 RngHom crnghm 20523 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-rep 5237 ax-sep 5256 ax-nul 5268 ax-pow 5335 ax-pr 5403 ax-un 7734 ax-cnex 11162 ax-resscn 11163 ax-1cn 11164 ax-icn 11165 ax-addcl 11166 ax-addrcl 11167 ax-mulcl 11168 ax-mulrcl 11169 ax-mulcom 11170 ax-addass 11171 ax-mulass 11172 ax-distr 11173 ax-i2m1 11174 ax-1ne0 11175 ax-1rid 11176 ax-rnegex 11177 ax-rrecex 11178 ax-cnre 11179 ax-pre-lttri 11180 ax-pre-lttrn 11181 ax-pre-ltadd 11182 ax-pre-mulgt0 11183 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1103 df-3an 1104 df-tru 1572 df-fal 1582 df-ex 1809 df-nf 1813 df-sb 2096 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3064 df-ral 3079 df-rex 3089 df-rmo 3368 df-reu 3369 df-rab 3416 df-v 3456 df-sbc 3744 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4487 df-pw 4563 df-sn 4589 df-pr 4591 df-tp 4593 df-op 4595 df-uni 4872 df-iun 4957 df-br 5109 df-opab 5173 df-mpt 5192 df-tr 5218 df-id 5555 df-eprel 5560 df-po 5568 df-so 5569 df-fr 5613 df-we 5615 df-xp 5666 df-rel 5667 df-cnv 5668 df-co 5669 df-dm 5670 df-rn 5671 df-res 5672 df-ima 5673 df-pred 6302 df-ord 6363 df-on 6364 df-lim 6365 df-suc 6366 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7861 df-1st 7984 df-2nd 7985 df-frecs 8276 df-wrecs 8307 df-recs 8356 df-rdg 8395 df-1o 8451 df-er 8692 df-map 8824 df-pm 8825 df-ixp 8894 df-en 8942 df-dom 8943 df-sdom 8944 df-fin 8945 df-pnf 11251 df-mnf 11252 df-xr 11253 df-ltxr 11254 df-le 11255 df-sub 11449 df-neg 11450 df-nn 12240 df-2 12309 df-3 12310 df-4 12311 df-5 12312 df-6 12313 df-7 12314 df-8 12315 df-9 12316 df-n0 12511 df-z 12598 df-dec 12718 df-uz 12869 df-fz 13542 df-struct 17213 df-sets 17230 df-slot 17248 df-ndx 17260 df-base 17276 df-ress 17297 df-plusg 17329 df-hom 17340 df-cco 17341 df-0g 17500 df-cat 17730 df-cid 17731 df-homf 17732 df-ssc 17873 df-resc 17874 df-subc 17875 df-estrc 18185 df-mgm 18704 df-mgmhm 18756 df-sgrp 18783 df-mnd 18799 df-mhm 18847 df-grp 19009 df-ghm 19290 df-abl 19859 df-mgp 20223 df-rng 20237 df-rnghm 20525 df-rngc 20727 |
| This theorem is used by: rngccat 20744 rngcid 20745 rngcifuestrc 20749 funcrngcsetc 20750 |
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