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| Mirrors > Home > MPE Home > Th. List > ringcbas | Structured version Visualization version GIF version | ||
| Description: Set of objects of the category of unital rings (in a universe). (Contributed by AV, 13-Feb-2020.) (Revised by AV, 8-Mar-2020.) |
| Ref | Expression |
|---|---|
| ringcbas.c | ⊢ 𝐶 = (RingCat‘𝑈) |
| ringcbas.b | ⊢ 𝐵 = (Base‘𝐶) |
| ringcbas.u | ⊢ (𝜑 → 𝑈 ∈ 𝑉) |
| Ref | Expression |
|---|---|
| ringcbas | ⊢ (𝜑 → 𝐵 = (𝑈 ∩ Ring)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ringcbas.c | . . . 4 ⊢ 𝐶 = (RingCat‘𝑈) | |
| 2 | ringcbas.u | . . . 4 ⊢ (𝜑 → 𝑈 ∈ 𝑉) | |
| 3 | eqidd 2761 | . . . 4 ⊢ (𝜑 → (𝑈 ∩ Ring) = (𝑈 ∩ Ring)) | |
| 4 | eqidd 2761 | . . . 4 ⊢ (𝜑 → ( RingHom ↾ ((𝑈 ∩ Ring) × (𝑈 ∩ Ring))) = ( RingHom ↾ ((𝑈 ∩ Ring) × (𝑈 ∩ Ring)))) | |
| 5 | 1, 2, 3, 4 | ringcval 20906 | . . 3 ⊢ (𝜑 → 𝐶 = ((ExtStrCat‘𝑈) ↾cat ( RingHom ↾ ((𝑈 ∩ Ring) × (𝑈 ∩ Ring))))) |
| 6 | 5 | fveq2d 6892 | . 2 ⊢ (𝜑 → (Base‘𝐶) = (Base‘((ExtStrCat‘𝑈) ↾cat ( RingHom ↾ ((𝑈 ∩ Ring) × (𝑈 ∩ Ring)))))) |
| 7 | ringcbas.b | . . 3 ⊢ 𝐵 = (Base‘𝐶) | |
| 8 | 7 | a1i 11 | . 2 ⊢ (𝜑 → 𝐵 = (Base‘𝐶)) |
| 9 | eqid 2760 | . . 3 ⊢ ((ExtStrCat‘𝑈) ↾cat ( RingHom ↾ ((𝑈 ∩ Ring) × (𝑈 ∩ Ring)))) = ((ExtStrCat‘𝑈) ↾cat ( RingHom ↾ ((𝑈 ∩ Ring) × (𝑈 ∩ Ring)))) | |
| 10 | eqid 2760 | . . 3 ⊢ (Base‘(ExtStrCat‘𝑈)) = (Base‘(ExtStrCat‘𝑈)) | |
| 11 | fvexd 6903 | . . 3 ⊢ (𝜑 → (ExtStrCat‘𝑈) ∈ V) | |
| 12 | 3, 4 | rhmresfn 20907 | . . 3 ⊢ (𝜑 → ( RingHom ↾ ((𝑈 ∩ Ring) × (𝑈 ∩ Ring))) Fn ((𝑈 ∩ Ring) × (𝑈 ∩ Ring))) |
| 13 | inss1 4132 | . . . 4 ⊢ (𝑈 ∩ Ring) ⊆ 𝑈 | |
| 14 | eqid 2760 | . . . . 5 ⊢ (ExtStrCat‘𝑈) = (ExtStrCat‘𝑈) | |
| 15 | 14, 2 | estrcbas 18306 | . . . 4 ⊢ (𝜑 → 𝑈 = (Base‘(ExtStrCat‘𝑈))) |
| 16 | 13, 15 | sseqtrid 3951 | . . 3 ⊢ (𝜑 → (𝑈 ∩ Ring) ⊆ (Base‘(ExtStrCat‘𝑈))) |
| 17 | 9, 10, 11, 12, 16 | rescbas 18011 | . 2 ⊢ (𝜑 → (𝑈 ∩ Ring) = (Base‘((ExtStrCat‘𝑈) ↾cat ( RingHom ↾ ((𝑈 ∩ Ring) × (𝑈 ∩ Ring)))))) |
| 18 | 6, 8, 17 | 3eqtr4d 2805 | 1 ⊢ (𝜑 → 𝐵 = (𝑈 ∩ Ring)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 ∈ wcel 2144 Vcvv 3450 ∩ cin 4088 × cxp 5648 ↾ cres 5652 ‘cfv 6541 (class class class)co 7422 Basecbs 17394 ↾cat cresc 17990 ExtStrCatcestrc 18303 Ringcrg 20466 RingHom crh 20706 RingCatcringc 20904 |
| 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 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7753 ax-cnex 11261 ax-resscn 11262 ax-1cn 11263 ax-icn 11264 ax-addcl 11265 ax-addrcl 11266 ax-mulcl 11267 ax-mulrcl 11268 ax-mulcom 11269 ax-addass 11270 ax-mulass 11271 ax-distr 11272 ax-i2m1 11273 ax-1ne0 11274 ax-1rid 11275 ax-rnegex 11276 ax-rrecex 11277 ax-cnre 11278 ax-pre-lttri 11279 ax-pre-lttrn 11280 ax-pre-ltadd 11281 ax-pre-mulgt0 11282 |
| 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 2099 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-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3848 df-ss 3897 df-pss 4013 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-tp 4589 df-op 4835 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6543 df-fn 6544 df-f 6545 df-f1 6546 df-fo 6547 df-f1o 6548 df-fv 6549 df-riota 7379 df-ov 7425 df-oprab 7426 df-mpo 7427 df-om 7880 df-1st 8003 df-2nd 8004 df-frecs 8304 df-wrecs 8335 df-recs 8384 df-rdg 8423 df-1o 8481 df-er 8722 df-map 8854 df-en 8979 df-dom 8980 df-sdom 8981 df-fin 8982 df-pnf 11350 df-mnf 11351 df-xr 11352 df-ltxr 11353 df-le 11354 df-sub 11548 df-neg 11549 df-nn 12341 df-2 12410 df-3 12411 df-4 12412 df-5 12413 df-6 12414 df-7 12415 df-8 12416 df-9 12417 df-n0 12612 df-z 12699 df-dec 12820 df-uz 12971 df-fz 13645 df-struct 17332 df-sets 17349 df-slot 17367 df-ndx 17379 df-base 17395 df-ress 17416 df-plusg 17448 df-hom 17459 df-cco 17460 df-0g 17619 df-resc 17993 df-estrc 18304 df-mhm 18985 df-ghm 19435 df-mgp 20368 df-ur 20415 df-ring 20468 df-rhm 20709 df-ringc 20905 |
| This theorem is used by: ringchomfval 20910 ringchomfeqhom 20913 ringccofval 20914 rhmsubcsetclem1 20919 ringcid 20923 rhmsubcrngclem1 20925 ringcsect 20929 ringcbasbas 20932 funcringcsetc 20933 zrtermoringc 20934 zrninitoringc 20935 srhmsubclem2 20937 srhmsubc 20939 irinitoringc 21792 nzerooringczr 21793 funcringcsetcALTV2lem7 49500 funcringcsetcALTV2lem9 49502 |
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