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| Mirrors > Home > MPE Home > Th. List > ringccofval | Structured version Visualization version GIF version | ||
| Description: Composition in the category of unital rings. (Contributed by AV, 14-Feb-2020.) (Revised by AV, 8-Mar-2020.) |
| Ref | Expression |
|---|---|
| ringcco.c | ⊢ 𝐶 = (RingCat‘𝑈) |
| ringcco.u | ⊢ (𝜑 → 𝑈 ∈ 𝑉) |
| ringcco.o | ⊢ · = (comp‘𝐶) |
| Ref | Expression |
|---|---|
| ringccofval | ⊢ (𝜑 → · = (comp‘(ExtStrCat‘𝑈))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ringcco.c | . . . 4 ⊢ 𝐶 = (RingCat‘𝑈) | |
| 2 | ringcco.u | . . . 4 ⊢ (𝜑 → 𝑈 ∈ 𝑉) | |
| 3 | eqid 2763 | . . . . 5 ⊢ (Base‘𝐶) = (Base‘𝐶) | |
| 4 | 1, 3, 2 | ringcbas 20932 | . . . 4 ⊢ (𝜑 → (Base‘𝐶) = (𝑈 ∩ Ring)) |
| 5 | eqid 2763 | . . . . 5 ⊢ (Hom ‘𝐶) = (Hom ‘𝐶) | |
| 6 | 1, 3, 2, 5 | ringchomfval 20933 | . . . 4 ⊢ (𝜑 → (Hom ‘𝐶) = ( RingHom ↾ ((Base‘𝐶) × (Base‘𝐶)))) |
| 7 | 1, 2, 4, 6 | ringcval 20929 | . . 3 ⊢ (𝜑 → 𝐶 = ((ExtStrCat‘𝑈) ↾cat (Hom ‘𝐶))) |
| 8 | 7 | fveq2d 6912 | . 2 ⊢ (𝜑 → (comp‘𝐶) = (comp‘((ExtStrCat‘𝑈) ↾cat (Hom ‘𝐶)))) |
| 9 | ringcco.o | . . 3 ⊢ · = (comp‘𝐶) | |
| 10 | 9 | a1i 11 | . 2 ⊢ (𝜑 → · = (comp‘𝐶)) |
| 11 | eqid 2763 | . . 3 ⊢ ((ExtStrCat‘𝑈) ↾cat (Hom ‘𝐶)) = ((ExtStrCat‘𝑈) ↾cat (Hom ‘𝐶)) | |
| 12 | eqid 2763 | . . 3 ⊢ (Base‘(ExtStrCat‘𝑈)) = (Base‘(ExtStrCat‘𝑈)) | |
| 13 | fvexd 6923 | . . 3 ⊢ (𝜑 → (ExtStrCat‘𝑈) ∈ V) | |
| 14 | 4, 6 | rhmresfn 20930 | . . 3 ⊢ (𝜑 → (Hom ‘𝐶) Fn ((Base‘𝐶) × (Base‘𝐶))) |
| 15 | inss1 4136 | . . . . 5 ⊢ (𝑈 ∩ Ring) ⊆ 𝑈 | |
| 16 | 15 | a1i 11 | . . . 4 ⊢ (𝜑 → (𝑈 ∩ Ring) ⊆ 𝑈) |
| 17 | eqid 2763 | . . . . . 6 ⊢ (ExtStrCat‘𝑈) = (ExtStrCat‘𝑈) | |
| 18 | 17, 2 | estrcbas 18328 | . . . . 5 ⊢ (𝜑 → 𝑈 = (Base‘(ExtStrCat‘𝑈))) |
| 19 | 18 | eqcomd 2769 | . . . 4 ⊢ (𝜑 → (Base‘(ExtStrCat‘𝑈)) = 𝑈) |
| 20 | 16, 4, 19 | 3sstr4d 3968 | . . 3 ⊢ (𝜑 → (Base‘𝐶) ⊆ (Base‘(ExtStrCat‘𝑈))) |
| 21 | eqid 2763 | . . 3 ⊢ (comp‘(ExtStrCat‘𝑈)) = (comp‘(ExtStrCat‘𝑈)) | |
| 22 | 11, 12, 13, 14, 20, 21 | rescco 18036 | . 2 ⊢ (𝜑 → (comp‘(ExtStrCat‘𝑈)) = (comp‘((ExtStrCat‘𝑈) ↾cat (Hom ‘𝐶)))) |
| 23 | 8, 10, 22 | 3eqtr4d 2808 | 1 ⊢ (𝜑 → · = (comp‘(ExtStrCat‘𝑈))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2147 Vcvv 3454 ⊆ wss 3900 ∩ cin 4092 ‘cfv 6558 (class class class)co 7443 Basecbs 17416 Hom chom 17468 compcco 17469 ↾cat cresc 18012 ExtStrCatcestrc 18325 Ringcrg 20489 RingCatcringc 20927 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-rep 5235 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7775 ax-cnex 11283 ax-resscn 11284 ax-1cn 11285 ax-icn 11286 ax-addcl 11287 ax-addrcl 11288 ax-mulcl 11289 ax-mulrcl 11290 ax-mulcom 11291 ax-addass 11292 ax-mulass 11293 ax-distr 11294 ax-i2m1 11295 ax-1ne0 11296 ax-1rid 11297 ax-rnegex 11298 ax-rrecex 11299 ax-cnre 11300 ax-pre-lttri 11301 ax-pre-lttrn 11302 ax-pre-ltadd 11303 ax-pre-mulgt0 11304 |
| 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 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-pss 4017 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-tp 4593 df-op 4839 df-uni 4871 df-iun 4956 df-br 5107 df-opab 5171 df-mpt 5190 df-tr 5216 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 6322 df-ord 6383 df-on 6384 df-lim 6385 df-suc 6386 df-iota 6512 df-fun 6560 df-fn 6561 df-f 6562 df-f1 6563 df-fo 6564 df-f1o 6565 df-fv 6566 df-riota 7400 df-ov 7446 df-oprab 7447 df-mpo 7448 df-om 7902 df-1st 8025 df-2nd 8026 df-frecs 8327 df-wrecs 8358 df-recs 8407 df-rdg 8446 df-1o 8504 df-er 8745 df-map 8877 df-en 9002 df-dom 9003 df-sdom 9004 df-fin 9005 df-pnf 11372 df-mnf 11373 df-xr 11374 df-ltxr 11375 df-le 11376 df-sub 11570 df-neg 11571 df-nn 12363 df-2 12432 df-3 12433 df-4 12434 df-5 12435 df-6 12436 df-7 12437 df-8 12438 df-9 12439 df-n0 12634 df-z 12721 df-dec 12842 df-uz 12993 df-fz 13667 df-struct 17354 df-sets 17371 df-slot 17389 df-ndx 17401 df-base 17417 df-ress 17438 df-plusg 17470 df-hom 17481 df-cco 17482 df-0g 17641 df-resc 18015 df-estrc 18326 df-mhm 19007 df-ghm 19457 df-mgp 20391 df-ur 20438 df-ring 20491 df-rhm 20732 df-ringc 20928 |
| This theorem is used by: ringcco 20938 |
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