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| Mirrors > Home > MPE Home > Th. List > fuccat | Structured version Visualization version GIF version | ||
| Description: The functor category is a category. Remark 6.16 in [Adamek] p. 88. (Contributed by Mario Carneiro, 6-Jan-2017.) |
| Ref | Expression |
|---|---|
| fuccat.q | ⊢ 𝑄 = (𝐶 FuncCat 𝐷) |
| fuccat.r | ⊢ (𝜑 → 𝐶 ∈ Cat) |
| fuccat.s | ⊢ (𝜑 → 𝐷 ∈ Cat) |
| Ref | Expression |
|---|---|
| fuccat | ⊢ (𝜑 → 𝑄 ∈ Cat) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fuccat.q | . . 3 ⊢ 𝑄 = (𝐶 FuncCat 𝐷) | |
| 2 | fuccat.r | . . 3 ⊢ (𝜑 → 𝐶 ∈ Cat) | |
| 3 | fuccat.s | . . 3 ⊢ (𝜑 → 𝐷 ∈ Cat) | |
| 4 | eqid 2766 | . . 3 ⊢ (Id‘𝐷) = (Id‘𝐷) | |
| 5 | 1, 2, 3, 4 | fuccatid 18054 | . 2 ⊢ (𝜑 → (𝑄 ∈ Cat ∧ (Id‘𝑄) = (𝑓 ∈ (𝐶 Func 𝐷) ↦ ((Id‘𝐷) ∘ (1st ‘𝑓))))) |
| 6 | 5 | simpld 500 | 1 ⊢ (𝜑 → 𝑄 ∈ Cat) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2146 ↦ cmpt 5197 ∘ ccom 5670 ‘cfv 6543 (class class class)co 7423 1st c1st 7993 Catccat 17745 Idccid 17746 Func cfunc 17936 FuncCat cfuc 18027 |
| 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 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2738 ax-rep 5243 ax-sep 5262 ax-nul 5274 ax-pow 5341 ax-pr 5409 ax-un 7745 ax-cnex 11174 ax-resscn 11175 ax-1cn 11176 ax-icn 11177 ax-addcl 11178 ax-addrcl 11179 ax-mulcl 11180 ax-mulrcl 11181 ax-mulcom 11182 ax-addass 11183 ax-mulass 11184 ax-distr 11185 ax-i2m1 11186 ax-1ne0 11187 ax-1rid 11188 ax-rnegex 11189 ax-rrecex 11190 ax-cnre 11191 ax-pre-lttri 11192 ax-pre-lttrn 11193 ax-pre-ltadd 11194 ax-pre-mulgt0 11195 |
| 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 2570 df-eu 2600 df-clab 2745 df-cleq 2758 df-clel 2841 df-nfc 2915 df-ne 2962 df-nel 3068 df-ral 3083 df-rex 3093 df-rmo 3372 df-reu 3373 df-rab 3420 df-v 3460 df-sbc 3748 df-csb 3857 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-pss 3928 df-nul 4290 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-tp 4599 df-op 4601 df-uni 4878 df-iun 4963 df-br 5115 df-opab 5179 df-mpt 5198 df-tr 5224 df-id 5561 df-eprel 5566 df-po 5574 df-so 5575 df-fr 5619 df-we 5621 df-xp 5672 df-rel 5673 df-cnv 5674 df-co 5675 df-dm 5676 df-rn 5677 df-res 5678 df-ima 5679 df-pred 6309 df-ord 6370 df-on 6371 df-lim 6372 df-suc 6373 df-iota 6499 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-riota 7380 df-ov 7426 df-oprab 7427 df-mpo 7428 df-om 7872 df-1st 7995 df-2nd 7996 df-frecs 8287 df-wrecs 8318 df-recs 8367 df-rdg 8406 df-1o 8462 df-er 8703 df-map 8835 df-ixp 8905 df-en 8953 df-dom 8954 df-sdom 8955 df-fin 8956 df-pnf 11263 df-mnf 11264 df-xr 11265 df-ltxr 11266 df-le 11267 df-sub 11461 df-neg 11462 df-nn 12252 df-2 12321 df-3 12322 df-4 12323 df-5 12324 df-6 12325 df-7 12326 df-8 12327 df-9 12328 df-n0 12523 df-z 12610 df-dec 12730 df-uz 12881 df-fz 13554 df-struct 17232 df-slot 17267 df-ndx 17279 df-base 17295 df-hom 17359 df-cco 17360 df-cat 17749 df-cid 17750 df-func 17940 df-nat 18028 df-fuc 18029 |
| This theorem is used by: fucsect 18057 fucinv 18058 fuciso 18060 catcfuccl 18200 evlfcl 18303 curfcl 18313 curf2ndf 18328 yonedalem1 18353 yonedalem21 18354 yonedalem22 18359 yonedalem3b 18360 yonffthlem 18363 yoneda 18364 yoniso 18366 fucoid 50167 fucofunc 50178 postcofval 50183 postcofcl 50184 precofval 50186 precofvalALT 50187 precofcl 50189 fucoppcid 50227 fucoppcffth 50230 diagciso 50358 diagcic 50359 funcsn 50360 0fucterm 50362 cmdpropd 50477 cmddu 50487 |
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