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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 17947 | . 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 7655 | 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 2145 ∀wral 3076 [wsbc 3739 〈cop 4590 {copab 5167 × cxp 5653 ⟶wf 6529 ‘cfv 6533 (class class class)co 7413 1st c1st 7984 2nd c2nd 7985 ↑m cmap 8826 Xcixp 8904 Basecbs 17301 Hom chom 17353 compcco 17354 Catccat 17752 Idccid 17753 Func cfunc 17943 |
| 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 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5251 ax-nul 5263 ax-pr 5398 |
| 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 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-opab 5168 df-xp 5661 df-dm 5665 df-iota 6489 df-fv 6541 df-ov 7416 df-oprab 7417 df-mpo 7418 df-func 17947 |
| This theorem is used by: funcf1 17955 funcixp 17956 funcid 17959 funcco 17960 funcsect 17961 funcinv 17962 funciso 17963 funcoppc 17964 cofucl 17977 cofulid 17979 cofurid 17980 funcres 17985 funcres2b 17986 funcpropd 17991 funcres2c 17992 isfull 18001 isfth 18005 fthsect 18016 fthinv 18017 fthmon 18018 fthepi 18019 ffthiso 18020 natfval 18038 fucbas 18052 fuchom 18053 fucco 18054 fuccocl 18056 fucidcl 18057 fuclid 18058 fucrid 18059 fucass 18060 fucid 18063 fucsect 18064 fucinv 18065 invfuc 18066 fuciso 18067 funcsetcres2 18182 prfcl 18291 prf1st 18292 prf2nd 18293 curf1cl 18316 curfcl 18320 uncfval 18322 uncfcl 18323 uncf1 18324 uncf2 18325 curfuncf 18326 uncfcurf 18327 yonffthlem 18370 yoneda 18371 funcrcl2 50005 funcrcl3 50006 initc 50017 prcofpropd 50305 termc2 50444 euendfunc 50452 lanpropd 50541 ranpropd 50542 ranval3 50557 lmddu 50593 cmddu 50594 |
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