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| Mirrors > Home > MPE Home > Th. List > Mathboxes > drhmsubcALTV | Structured version Visualization version GIF version | ||
| Description: According to df-subc 17999, the subcategories (Subcat‘𝐶) of a category 𝐶 are subsets of the homomorphisms of 𝐶 (see subcssc 18027 and subcss2 18030). Therefore, the set of division ring homomorphisms is a "subcategory" of the category of (unital) rings. (Contributed by AV, 20-Feb-2020.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| drhmsubcALTV.c | ⊢ 𝐶 = (𝑈 ∩ DivRing) |
| drhmsubcALTV.j | ⊢ 𝐽 = (𝑟 ∈ 𝐶, 𝑠 ∈ 𝐶 ↦ (𝑟 RingHom 𝑠)) |
| Ref | Expression |
|---|---|
| drhmsubcALTV | ⊢ (𝑈 ∈ 𝑉 → 𝐽 ∈ (Subcat‘(RingCatALTV‘𝑈))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | drngring 20999 | . . 3 ⊢ (𝑟 ∈ DivRing → 𝑟 ∈ Ring) | |
| 2 | 1 | rgen 3081 | . 2 ⊢ ∀𝑟 ∈ DivRing 𝑟 ∈ Ring |
| 3 | drhmsubcALTV.c | . 2 ⊢ 𝐶 = (𝑈 ∩ DivRing) | |
| 4 | drhmsubcALTV.j | . 2 ⊢ 𝐽 = (𝑟 ∈ 𝐶, 𝑠 ∈ 𝐶 ↦ (𝑟 RingHom 𝑠)) | |
| 5 | 2, 3, 4 | srhmsubcALTV 49561 | 1 ⊢ (𝑈 ∈ 𝑉 → 𝐽 ∈ (Subcat‘(RingCatALTV‘𝑈))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 ∈ wcel 2146 ∩ cin 4091 ‘cfv 6546 (class class class)co 7427 ∈ cmpo 7429 Subcatcsubc 17996 Ringcrg 20471 RingHom crh 20711 DivRingcdr 20992 RingCatALTVcringcALTV 49523 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2196 ax-12 2215 ax-ext 2735 ax-rep 5234 ax-sep 5251 ax-nul 5262 ax-pow 5330 ax-pr 5394 ax-un 7758 ax-cnex 11266 ax-resscn 11267 ax-1cn 11268 ax-icn 11269 ax-addcl 11270 ax-addrcl 11271 ax-mulcl 11272 ax-mulrcl 11273 ax-mulcom 11274 ax-addass 11275 ax-mulass 11276 ax-distr 11277 ax-i2m1 11278 ax-1ne0 11279 ax-1rid 11280 ax-rnegex 11281 ax-rrecex 11282 ax-cnre 11283 ax-pre-lttri 11284 ax-pre-lttrn 11285 ax-pre-ltadd 11286 ax-pre-mulgt0 11287 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2101 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3368 df-reu 3369 df-rab 3416 df-v 3455 df-sbc 3742 df-csb 3851 df-ss 3900 df-pss 4016 df-dif 4049 df-in 4093 df-un 4153 df-nul 4281 df-if 4485 df-pw 4561 df-sn 4588 df-pr 4590 df-tp 4592 df-op 4838 df-uni 4870 df-iun 4955 df-br 5106 df-opab 5170 df-mpt 5189 df-tr 5215 df-id 5549 df-eprel 5554 df-po 5562 df-so 5563 df-fr 5607 df-we 5609 df-xp 5660 df-rel 5661 df-cnv 5662 df-co 5663 df-dm 5664 df-rn 5665 df-res 5666 df-ima 5667 df-pred 6310 df-ord 6371 df-on 6372 df-lim 6373 df-suc 6374 df-iota 6500 df-fun 6548 df-fn 6549 df-f 6550 df-f1 6551 df-fo 6552 df-f1o 6553 df-fv 6554 df-riota 7384 df-ov 7430 df-oprab 7431 df-mpo 7432 df-om 7885 df-1st 8008 df-2nd 8009 df-frecs 8310 df-wrecs 8341 df-recs 8390 df-rdg 8429 df-1o 8487 df-er 8728 df-map 8860 df-pm 8861 df-ixp 8937 df-en 8985 df-dom 8986 df-sdom 8987 df-fin 8988 df-pnf 11355 df-mnf 11356 df-xr 11357 df-ltxr 11358 df-le 11359 df-sub 11553 df-neg 11554 df-nn 12346 df-2 12415 df-3 12416 df-4 12417 df-5 12418 df-6 12419 df-7 12420 df-8 12421 df-9 12422 df-n0 12617 df-z 12704 df-dec 12825 df-uz 12976 df-fz 13650 df-struct 17337 df-sets 17354 df-slot 17372 df-ndx 17384 df-base 17400 df-plusg 17453 df-hom 17464 df-cco 17465 df-0g 17624 df-cat 17854 df-cid 17855 df-homf 17856 df-ssc 17997 df-subc 17999 df-mgm 18828 df-sgrp 18920 df-mnd 18936 df-mhm 18990 df-grp 19159 df-ghm 19440 df-mgp 20373 df-ur 20420 df-ring 20473 df-rhm 20714 df-drng 20994 df-ringcALTV 49524 |
| This theorem is used by: fldhmsubcALTV 49569 |
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