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| Mirrors > Home > MPE Home > Th. List > funcrcl | Structured version Visualization version GIF version | ||
| Description: Reverse closure for a functor. (Contributed by Mario Carneiro, 6-Jan-2017.) |
| Ref | Expression |
|---|---|
| funcrcl | ⊢ (𝐹 ∈ (𝐷 Func 𝐸) → (𝐷 ∈ Cat ∧ 𝐸 ∈ Cat)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-func 17937 | . 2 ⊢ Func = (𝑡 ∈ Cat, 𝑢 ∈ Cat ↦ {〈𝑓, 𝑔〉 ∣ [(Base‘𝑡) / 𝑏](𝑓:𝑏⟶(Base‘𝑢) ∧ 𝑔 ∈ X𝑧 ∈ (𝑏 × 𝑏)(((𝑓‘(1st ‘𝑧))(Hom ‘𝑢)(𝑓‘(2nd ‘𝑧))) ↑m ((Hom ‘𝑡)‘𝑧)) ∧ ∀𝑥 ∈ 𝑏 (((𝑥𝑔𝑥)‘((Id‘𝑡)‘𝑥)) = ((Id‘𝑢)‘(𝑓‘𝑥)) ∧ ∀𝑦 ∈ 𝑏 ∀𝑧 ∈ 𝑏 ∀𝑚 ∈ (𝑥(Hom ‘𝑡)𝑦)∀𝑛 ∈ (𝑦(Hom ‘𝑡)𝑧)((𝑥𝑔𝑧)‘(𝑛(〈𝑥, 𝑦〉(comp‘𝑡)𝑧)𝑚)) = (((𝑦𝑔𝑧)‘𝑛)(〈(𝑓‘𝑥), (𝑓‘𝑦)〉(comp‘𝑢)(𝑓‘𝑧))((𝑥𝑔𝑦)‘𝑚))))}) | |
| 2 | 1 | elmpocl 7661 | 1 ⊢ (𝐹 ∈ (𝐷 Func 𝐸) → (𝐷 ∈ Cat ∧ 𝐸 ∈ Cat)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∧ w3a 1103 = wceq 1570 ∈ wcel 2146 ∀wral 3081 [wsbc 3746 〈cop 4597 {copab 5175 × cxp 5661 ⟶wf 6536 ‘cfv 6540 (class class class)co 7419 1st c1st 7990 2nd c2nd 7991 ↑m cmap 8830 Xcixp 8901 Basecbs 17291 Hom chom 17343 compcco 17344 Catccat 17742 Idccid 17743 Func cfunc 17933 |
| 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 2737 ax-sep 5259 ax-nul 5271 ax-pr 5406 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-ral 3082 df-rex 3092 df-rab 3419 df-v 3459 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4287 df-if 4490 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-br 5112 df-opab 5176 df-xp 5669 df-dm 5673 df-iota 6496 df-fv 6548 df-ov 7422 df-oprab 7423 df-mpo 7424 df-func 17937 |
| This theorem is used by: funcf1 17945 funcixp 17946 funcid 17949 funcco 17950 funcsect 17951 funcinv 17952 funciso 17953 funcoppc 17954 cofucl 17967 cofulid 17969 cofurid 17970 funcres 17975 funcres2b 17976 funcpropd 17981 funcres2c 17982 isfull 17991 isfth 17995 fthsect 18006 fthinv 18007 fthmon 18008 fthepi 18009 ffthiso 18010 natfval 18028 fucbas 18042 fuchom 18043 fucco 18044 fuccocl 18046 fucidcl 18047 fuclid 18048 fucrid 18049 fucass 18050 fucid 18053 fucsect 18054 fucinv 18055 invfuc 18056 fuciso 18057 funcsetcres2 18172 prfcl 18281 prf1st 18282 prf2nd 18283 curf1cl 18306 curfcl 18310 uncfval 18312 uncfcl 18313 uncf1 18314 uncf2 18315 curfuncf 18316 uncfcurf 18317 yonffthlem 18360 yoneda 18361 funcrcl2 49914 funcrcl3 49915 initc 49926 prcofpropd 50214 termc2 50353 euendfunc 50361 lanpropd 50450 ranpropd 50451 ranval3 50466 lmddu 50502 cmddu 50503 |
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