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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 18026 | . 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 7660 | 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 3077 [wsbc 3739 〈cop 4590 {copab 5167 × cxp 5649 ⟶wf 6533 ‘cfv 6537 (class class class)co 7418 1st c1st 7997 2nd c2nd 7998 ↑m cmap 8840 Xcixp 8918 Basecbs 17380 Hom chom 17432 compcco 17433 Catccat 17831 Idccid 17832 Func cfunc 18022 |
| 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 2733 ax-sep 5249 ax-nul 5260 ax-pr 5391 |
| 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 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3078 df-rex 3088 df-rab 3414 df-v 3453 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 5657 df-dm 5661 df-iota 6493 df-fv 6545 df-ov 7421 df-oprab 7422 df-mpo 7423 df-func 18026 |
| This theorem is used by: funcf1 18034 funcixp 18035 funcid 18038 funcco 18039 funcsect 18040 funcinv 18041 funciso 18042 funcoppc 18043 cofucl 18056 cofulid 18058 cofurid 18059 funcres 18064 funcres2b 18065 funcpropd 18070 funcres2c 18071 isfull 18080 isfth 18084 fthsect 18095 fthinv 18096 fthmon 18097 fthepi 18098 ffthiso 18099 natfval 18117 fucbas 18131 fuchom 18132 fucco 18133 fuccocl 18135 fucidcl 18136 fuclid 18137 fucrid 18138 fucass 18139 fucid 18142 fucsect 18143 fucinv 18144 invfuc 18145 fuciso 18146 funcsetcres2 18261 prfcl 18370 prf1st 18371 prf2nd 18372 curf1cl 18395 curfcl 18399 uncfval 18401 uncfcl 18402 uncf1 18403 uncf2 18404 curfuncf 18405 uncfcurf 18406 yonffthlem 18449 yoneda 18450 funcrcl2 50156 funcrcl3 50157 initc 50168 prcofpropd 50456 termc2 50595 euendfunc 50603 lanpropd 50692 ranpropd 50693 ranval3 50708 lmddu 50744 cmddu 50745 |
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