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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 17782 | . 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 7599 | 1 ⊢ (𝐹 ∈ (𝐷 Func 𝐸) → (𝐷 ∈ Cat ∧ 𝐸 ∈ Cat)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1086 = wceq 1541 ∈ wcel 2113 ∀wral 3051 [wsbc 3740 〈cop 4586 {copab 5160 × cxp 5622 ⟶wf 6488 ‘cfv 6492 (class class class)co 7358 1st c1st 7931 2nd c2nd 7932 ↑m cmap 8763 Xcixp 8835 Basecbs 17136 Hom chom 17188 compcco 17189 Catccat 17587 Idccid 17588 Func cfunc 17778 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2184 ax-ext 2708 ax-sep 5241 ax-nul 5251 ax-pr 5377 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3061 df-rab 3400 df-v 3442 df-dif 3904 df-un 3906 df-ss 3918 df-nul 4286 df-if 4480 df-sn 4581 df-pr 4583 df-op 4587 df-uni 4864 df-br 5099 df-opab 5161 df-xp 5630 df-dm 5634 df-iota 6448 df-fv 6500 df-ov 7361 df-oprab 7362 df-mpo 7363 df-func 17782 |
| This theorem is referenced by: funcf1 17790 funcixp 17791 funcid 17794 funcco 17795 funcsect 17796 funcinv 17797 funciso 17798 funcoppc 17799 cofucl 17812 cofulid 17814 cofurid 17815 funcres 17820 funcres2b 17821 funcpropd 17826 funcres2c 17827 isfull 17836 isfth 17840 fthsect 17851 fthinv 17852 fthmon 17853 fthepi 17854 ffthiso 17855 natfval 17873 fucbas 17887 fuchom 17888 fucco 17889 fuccocl 17891 fucidcl 17892 fuclid 17893 fucrid 17894 fucass 17895 fucid 17898 fucsect 17899 fucinv 17900 invfuc 17901 fuciso 17902 funcsetcres2 18017 prfcl 18126 prf1st 18127 prf2nd 18128 curf1cl 18151 curfcl 18155 uncfval 18157 uncfcl 18158 uncf1 18159 uncf2 18160 curfuncf 18161 uncfcurf 18162 yonffthlem 18205 yoneda 18206 funcrcl2 49324 funcrcl3 49325 initc 49336 prcofpropd 49624 termc2 49763 euendfunc 49771 lanpropd 49860 ranpropd 49861 ranval3 49876 lmddu 49912 cmddu 49913 |
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