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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 17914 | . 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 7652 | 1 ⊢ (𝐹 ∈ (𝐷 Func 𝐸) → (𝐷 ∈ Cat ∧ 𝐸 ∈ Cat)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 ∧ w3a 1101 = wceq 1567 ∈ wcel 2149 ∀wral 3085 [wsbc 3753 〈cop 4600 {copab 5177 × cxp 5660 ⟶wf 6533 ‘cfv 6537 (class class class)co 7411 1st c1st 7983 2nd c2nd 7984 ↑m cmap 8823 Xcixp 8894 Basecbs 17268 Hom chom 17320 compcco 17321 Catccat 17719 Idccid 17720 Func cfunc 17910 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-sep 5261 ax-nul 5271 ax-pr 5405 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-ral 3086 df-rex 3096 df-rab 3424 df-v 3465 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4295 df-if 4493 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-br 5114 df-opab 5178 df-xp 5668 df-dm 5672 df-iota 6493 df-fv 6545 df-ov 7414 df-oprab 7415 df-mpo 7416 df-func 17914 |
| This theorem is referenced by: funcf1 17922 funcixp 17923 funcid 17926 funcco 17927 funcsect 17928 funcinv 17929 funciso 17930 funcoppc 17931 cofucl 17944 cofulid 17946 cofurid 17947 funcres 17952 funcres2b 17953 funcpropd 17958 funcres2c 17959 isfull 17968 isfth 17972 fthsect 17983 fthinv 17984 fthmon 17985 fthepi 17986 ffthiso 17987 natfval 18005 fucbas 18019 fuchom 18020 fucco 18021 fuccocl 18023 fucidcl 18024 fuclid 18025 fucrid 18026 fucass 18027 fucid 18030 fucsect 18031 fucinv 18032 invfuc 18033 fuciso 18034 funcsetcres2 18149 prfcl 18258 prf1st 18259 prf2nd 18260 curf1cl 18283 curfcl 18287 uncfval 18289 uncfcl 18290 uncf1 18291 uncf2 18292 curfuncf 18293 uncfcurf 18294 yonffthlem 18337 yoneda 18338 funcrcl2 49741 funcrcl3 49742 initc 49753 prcofpropd 50041 termc2 50180 euendfunc 50188 lanpropd 50277 ranpropd 50278 ranval3 50293 lmddu 50329 cmddu 50330 |
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