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| Mirrors > Home > MPE Home > Th. List > Mathboxes > rhmsubcALTV | Structured version Visualization version GIF version | ||
| Description: According to df-subc 17902, the subcategories (Subcat‘𝐶) of a category 𝐶 are subsets of the homomorphisms of 𝐶 (see subcssc 17930 and subcss2 17933). 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 2761 | . . . 4 ⊢ (𝜑 → (Rng ∩ 𝑈) = (Rng ∩ 𝑈)) | |
| 4 | 1, 2, 3 | rhmsscrnghm 20828 | . . 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 2760 | . . . 4 ⊢ (RngCatALTV‘𝑈) = (RngCatALTV‘𝑈) | |
| 8 | eqid 2760 | . . . 4 ⊢ (Rng ∩ 𝑈) = (Rng ∩ 𝑈) | |
| 9 | eqid 2760 | . . . 4 ⊢ (Homf ‘(RngCatALTV‘𝑈)) = (Homf ‘(RngCatALTV‘𝑈)) | |
| 10 | 7, 8, 1, 9 | rngchomrnghmresALTV 49195 | . . 3 ⊢ (𝜑 → (Homf ‘(RngCatALTV‘𝑈)) = ( RngHom ↾ ((Rng ∩ 𝑈) × (Rng ∩ 𝑈)))) |
| 11 | 4, 6, 10 | 3brtr4d 5137 | . 2 ⊢ (𝜑 → 𝐻 ⊆cat (Homf ‘(RngCatALTV‘𝑈))) |
| 12 | rngcrescrhmALTV.c | . . . . 5 ⊢ 𝐶 = (RngCatALTV‘𝑈) | |
| 13 | 1, 12, 2, 5 | rhmsubcALTVlem3 49199 | . . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑅) → ((Id‘(RngCatALTV‘𝑈))‘𝑥) ∈ (𝑥𝐻𝑥)) |
| 14 | 1, 12, 2, 5 | rhmsubcALTVlem4 49200 | . . . . . 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 521 | . . 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 2760 | . . 3 ⊢ (Id‘(RngCatALTV‘𝑈)) = (Id‘(RngCatALTV‘𝑈)) | |
| 20 | eqid 2760 | . . 3 ⊢ (comp‘(RngCatALTV‘𝑈)) = (comp‘(RngCatALTV‘𝑈)) | |
| 21 | 7 | rngccatALTV 49189 | . . . 4 ⊢ (𝑈 ∈ 𝑉 → (RngCatALTV‘𝑈) ∈ Cat) |
| 22 | 1, 21 | syl 18 | . . 3 ⊢ (𝜑 → (RngCatALTV‘𝑈) ∈ Cat) |
| 23 | 1, 12, 2, 5 | rhmsubcALTVlem1 49197 | . . 3 ⊢ (𝜑 → 𝐻 Fn (𝑅 × 𝑅)) |
| 24 | 9, 19, 20, 22, 23 | issubc2 17926 | . 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 726 | 1 ⊢ (𝜑 → 𝐻 ∈ (Subcat‘(RngCatALTV‘𝑈))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ∀wral 3076 ∩ cin 3898 〈cop 4590 class class class wbr 5103 × cxp 5653 ↾ cres 5657 ‘cfv 6533 (class class class)co 7414 compcco 17355 Catccat 17753 Idccid 17754 Homf chomf 17755 ⊆cat cssc 17897 Subcatcsubc 17899 Rngcrng 20288 Ringcrg 20373 RngHom crnghm 20576 RingHom crh 20611 RngCatALTVcrngcALTV 49179 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-rep 5232 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7737 ax-cnex 11181 ax-resscn 11182 ax-1cn 11183 ax-icn 11184 ax-addcl 11185 ax-addrcl 11186 ax-mulcl 11187 ax-mulrcl 11188 ax-mulcom 11189 ax-addass 11190 ax-mulass 11191 ax-distr 11192 ax-i2m1 11193 ax-1ne0 11194 ax-1rid 11195 ax-rnegex 11196 ax-rrecex 11197 ax-cnre 11198 ax-pre-lttri 11199 ax-pre-lttrn 11200 ax-pre-ltadd 11201 ax-pre-mulgt0 11202 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-tp 4589 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-riota 7371 df-ov 7417 df-oprab 7418 df-mpo 7419 df-om 7864 df-1st 7987 df-2nd 7988 df-frecs 8281 df-wrecs 8312 df-recs 8361 df-rdg 8400 df-1o 8456 df-er 8697 df-map 8829 df-pm 8830 df-ixp 8906 df-en 8954 df-dom 8955 df-sdom 8956 df-fin 8957 df-pnf 11270 df-mnf 11271 df-xr 11272 df-ltxr 11273 df-le 11274 df-sub 11468 df-neg 11469 df-nn 12259 df-2 12328 df-3 12329 df-4 12330 df-5 12331 df-6 12332 df-7 12333 df-8 12334 df-9 12335 df-n0 12530 df-z 12617 df-dec 12738 df-uz 12889 df-fz 13563 df-struct 17240 df-sets 17257 df-slot 17275 df-ndx 17287 df-base 17303 df-plusg 17356 df-hom 17367 df-cco 17368 df-0g 17527 df-cat 17757 df-cid 17758 df-homf 17759 df-ssc 17900 df-subc 17902 df-mgm 18731 df-mgmhm 18795 df-sgrp 18822 df-mnd 18838 df-mhm 18892 df-grp 19061 df-minusg 19062 df-ghm 19342 df-cmn 19910 df-abl 19911 df-mgp 20275 df-rng 20289 df-ur 20322 df-ring 20375 df-rnghm 20578 df-rhm 20614 df-rngcALTV 49180 |
| This theorem is used by: rhmsubcALTVcat 49202 |
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