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| Mirrors > Home > MPE Home > Th. List > Mathboxes > rhmsubcALTV | Structured version Visualization version GIF version | ||
| Description: According to df-subc 17845, the subcategories (Subcat‘𝐶) of a category 𝐶 are subsets of the homomorphisms of 𝐶 (see subcssc 17873 and subcss2 17876). Therefore, the set of unital ring homomorphisms is a "subcategory" of the category of non-unital rings. (Contributed by AV, 2-Mar-2020.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| rngcrescrhmALTV.u | ⊢ (𝜑 → 𝑈 ∈ 𝑉) |
| rngcrescrhmALTV.c | ⊢ 𝐶 = (RngCatALTV‘𝑈) |
| rngcrescrhmALTV.r | ⊢ (𝜑 → 𝑅 = (Ring ∩ 𝑈)) |
| rngcrescrhmALTV.h | ⊢ 𝐻 = ( RingHom ↾ (𝑅 × 𝑅)) |
| Ref | Expression |
|---|---|
| rhmsubcALTV | ⊢ (𝜑 → 𝐻 ∈ (Subcat‘(RngCatALTV‘𝑈))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rngcrescrhmALTV.u | . . . 4 ⊢ (𝜑 → 𝑈 ∈ 𝑉) | |
| 2 | rngcrescrhmALTV.r | . . . 4 ⊢ (𝜑 → 𝑅 = (Ring ∩ 𝑈)) | |
| 3 | eqidd 2763 | . . . 4 ⊢ (𝜑 → (Rng ∩ 𝑈) = (Rng ∩ 𝑈)) | |
| 4 | 1, 2, 3 | rhmsscrnghm 20715 | . . 3 ⊢ (𝜑 → ( RingHom ↾ (𝑅 × 𝑅)) ⊆cat ( RngHom ↾ ((Rng ∩ 𝑈) × (Rng ∩ 𝑈)))) |
| 5 | rngcrescrhmALTV.h | . . . 4 ⊢ 𝐻 = ( RingHom ↾ (𝑅 × 𝑅)) | |
| 6 | 5 | a1i 11 | . . 3 ⊢ (𝜑 → 𝐻 = ( RingHom ↾ (𝑅 × 𝑅))) |
| 7 | eqid 2762 | . . . 4 ⊢ (RngCatALTV‘𝑈) = (RngCatALTV‘𝑈) | |
| 8 | eqid 2762 | . . . 4 ⊢ (Rng ∩ 𝑈) = (Rng ∩ 𝑈) | |
| 9 | eqid 2762 | . . . 4 ⊢ (Homf ‘(RngCatALTV‘𝑈)) = (Homf ‘(RngCatALTV‘𝑈)) | |
| 10 | 7, 8, 1, 9 | rngchomrnghmresALTV 48901 | . . 3 ⊢ (𝜑 → (Homf ‘(RngCatALTV‘𝑈)) = ( RngHom ↾ ((Rng ∩ 𝑈) × (Rng ∩ 𝑈)))) |
| 11 | 4, 6, 10 | 3brtr4d 5132 | . 2 ⊢ (𝜑 → 𝐻 ⊆cat (Homf ‘(RngCatALTV‘𝑈))) |
| 12 | rngcrescrhmALTV.c | . . . . 5 ⊢ 𝐶 = (RngCatALTV‘𝑈) | |
| 13 | 1, 12, 2, 5 | rhmsubcALTVlem3 48905 | . . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑅) → ((Id‘(RngCatALTV‘𝑈))‘𝑥) ∈ (𝑥𝐻𝑥)) |
| 14 | 1, 12, 2, 5 | rhmsubcALTVlem4 48906 | . . . . . 6 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → (𝑔(〈𝑥, 𝑦〉(comp‘(RngCatALTV‘𝑈))𝑧)𝑓) ∈ (𝑥𝐻𝑧)) |
| 15 | 14 | ralrimivva 3205 | . . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) → ∀𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)(𝑔(〈𝑥, 𝑦〉(comp‘(RngCatALTV‘𝑈))𝑧)𝑓) ∈ (𝑥𝐻𝑧)) |
| 16 | 15 | ralrimivva 3205 | . . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑅) → ∀𝑦 ∈ 𝑅 ∀𝑧 ∈ 𝑅 ∀𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)(𝑔(〈𝑥, 𝑦〉(comp‘(RngCatALTV‘𝑈))𝑧)𝑓) ∈ (𝑥𝐻𝑧)) |
| 17 | 13, 16 | jca 519 | . . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑅) → (((Id‘(RngCatALTV‘𝑈))‘𝑥) ∈ (𝑥𝐻𝑥) ∧ ∀𝑦 ∈ 𝑅 ∀𝑧 ∈ 𝑅 ∀𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)(𝑔(〈𝑥, 𝑦〉(comp‘(RngCatALTV‘𝑈))𝑧)𝑓) ∈ (𝑥𝐻𝑧))) |
| 18 | 17 | ralrimiva 3154 | . 2 ⊢ (𝜑 → ∀𝑥 ∈ 𝑅 (((Id‘(RngCatALTV‘𝑈))‘𝑥) ∈ (𝑥𝐻𝑥) ∧ ∀𝑦 ∈ 𝑅 ∀𝑧 ∈ 𝑅 ∀𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)(𝑔(〈𝑥, 𝑦〉(comp‘(RngCatALTV‘𝑈))𝑧)𝑓) ∈ (𝑥𝐻𝑧))) |
| 19 | eqid 2762 | . . 3 ⊢ (Id‘(RngCatALTV‘𝑈)) = (Id‘(RngCatALTV‘𝑈)) | |
| 20 | eqid 2762 | . . 3 ⊢ (comp‘(RngCatALTV‘𝑈)) = (comp‘(RngCatALTV‘𝑈)) | |
| 21 | 7 | rngccatALTV 48895 | . . . 4 ⊢ (𝑈 ∈ 𝑉 → (RngCatALTV‘𝑈) ∈ Cat) |
| 22 | 1, 21 | syl 17 | . . 3 ⊢ (𝜑 → (RngCatALTV‘𝑈) ∈ Cat) |
| 23 | 1, 12, 2, 5 | rhmsubcALTVlem1 48903 | . . 3 ⊢ (𝜑 → 𝐻 Fn (𝑅 × 𝑅)) |
| 24 | 9, 19, 20, 22, 23 | issubc2 17869 | . 2 ⊢ (𝜑 → (𝐻 ∈ (Subcat‘(RngCatALTV‘𝑈)) ↔ (𝐻 ⊆cat (Homf ‘(RngCatALTV‘𝑈)) ∧ ∀𝑥 ∈ 𝑅 (((Id‘(RngCatALTV‘𝑈))‘𝑥) ∈ (𝑥𝐻𝑥) ∧ ∀𝑦 ∈ 𝑅 ∀𝑧 ∈ 𝑅 ∀𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)(𝑔(〈𝑥, 𝑦〉(comp‘(RngCatALTV‘𝑈))𝑧)𝑓) ∈ (𝑥𝐻𝑧))))) |
| 25 | 11, 18, 24 | mpbir2and 723 | 1 ⊢ (𝜑 → 𝐻 ∈ (Subcat‘(RngCatALTV‘𝑈))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 = wceq 1560 ∈ wcel 2142 ∀wral 3076 ∩ cin 3903 〈cop 4588 class class class wbr 5100 × cxp 5645 ↾ cres 5649 ‘cfv 6521 (class class class)co 7396 compcco 17298 Catccat 17696 Idccid 17697 Homf chomf 17698 ⊆cat cssc 17840 Subcatcsubc 17842 Rngcrng 20198 Ringcrg 20283 RngHom crnghm 20483 RingHom crh 20518 RngCatALTVcrngcALTV 48885 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1815 ax-4 1829 ax-5 1930 ax-6 1987 ax-7 2028 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-rep 5227 ax-sep 5246 ax-nul 5256 ax-pow 5322 ax-pr 5390 ax-un 7718 ax-cnex 11129 ax-resscn 11130 ax-1cn 11131 ax-icn 11132 ax-addcl 11133 ax-addrcl 11134 ax-mulcl 11135 ax-mulrcl 11136 ax-mulcom 11137 ax-addass 11138 ax-mulass 11139 ax-distr 11140 ax-i2m1 11141 ax-1ne0 11142 ax-1rid 11143 ax-rnegex 11144 ax-rrecex 11145 ax-cnre 11146 ax-pre-lttri 11147 ax-pre-lttrn 11148 ax-pre-ltadd 11149 ax-pre-mulgt0 11150 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1099 df-3an 1100 df-tru 1563 df-fal 1573 df-ex 1800 df-nf 1804 df-sb 2091 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3367 df-reu 3368 df-rab 3415 df-v 3456 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 4481 df-pw 4557 df-sn 4583 df-pr 4585 df-tp 4587 df-op 4589 df-uni 4866 df-iun 4951 df-br 5101 df-opab 5163 df-mpt 5182 df-tr 5208 df-id 5542 df-eprel 5547 df-po 5555 df-so 5556 df-fr 5600 df-we 5602 df-xp 5653 df-rel 5654 df-cnv 5655 df-co 5656 df-dm 5657 df-rn 5658 df-res 5659 df-ima 5660 df-pred 6288 df-ord 6349 df-on 6350 df-lim 6351 df-suc 6352 df-iota 6477 df-fun 6523 df-fn 6524 df-f 6525 df-f1 6526 df-fo 6527 df-f1o 6528 df-fv 6529 df-riota 7353 df-ov 7399 df-oprab 7400 df-mpo 7401 df-om 7847 df-1st 7970 df-2nd 7971 df-frecs 8262 df-wrecs 8293 df-recs 8342 df-rdg 8381 df-1o 8437 df-er 8678 df-map 8810 df-pm 8811 df-ixp 8880 df-en 8928 df-dom 8929 df-sdom 8930 df-fin 8931 df-pnf 11218 df-mnf 11219 df-xr 11220 df-ltxr 11221 df-le 11222 df-sub 11416 df-neg 11417 df-nn 12211 df-2 12280 df-3 12281 df-4 12282 df-5 12283 df-6 12284 df-7 12285 df-8 12286 df-9 12287 df-n0 12482 df-z 12569 df-dec 12689 df-uz 12840 df-fz 13513 df-struct 17183 df-sets 17200 df-slot 17218 df-ndx 17230 df-base 17246 df-plusg 17299 df-hom 17310 df-cco 17311 df-0g 17470 df-cat 17700 df-cid 17701 df-homf 17702 df-ssc 17843 df-subc 17845 df-mgm 18674 df-mgmhm 18726 df-sgrp 18753 df-mnd 18769 df-mhm 18817 df-grp 18978 df-minusg 18979 df-ghm 19254 df-cmn 19822 df-abl 19823 df-mgp 20187 df-rng 20199 df-ur 20232 df-ring 20285 df-rnghm 20485 df-rhm 20521 df-rngcALTV 48886 |
| This theorem is referenced by: rhmsubcALTVcat 48908 |
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