| Mathbox for Zhi Wang |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > funcrcl3 | Structured version Visualization version GIF version | ||
| Description: Reverse closure for a functor. (Contributed by Zhi Wang, 17-Sep-2025.) |
| Ref | Expression |
|---|---|
| funcrcl2.f | ⊢ (𝜑 → 𝐹(𝐷 Func 𝐸)𝐺) |
| Ref | Expression |
|---|---|
| funcrcl3 | ⊢ (𝜑 → 𝐸 ∈ Cat) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | funcrcl2.f | . . 3 ⊢ (𝜑 → 𝐹(𝐷 Func 𝐸)𝐺) | |
| 2 | df-br 5073 | . . . 4 ⊢ (𝐹(𝐷 Func 𝐸)𝐺 ↔ 〈𝐹, 𝐺〉 ∈ (𝐷 Func 𝐸)) | |
| 3 | 2 | biimpi 217 | . . 3 ⊢ (𝐹(𝐷 Func 𝐸)𝐺 → 〈𝐹, 𝐺〉 ∈ (𝐷 Func 𝐸)) |
| 4 | funcrcl 17821 | . . 3 ⊢ (〈𝐹, 𝐺〉 ∈ (𝐷 Func 𝐸) → (𝐷 ∈ Cat ∧ 𝐸 ∈ Cat)) | |
| 5 | 1, 3, 4 | 3syl 18 | . 2 ⊢ (𝜑 → (𝐷 ∈ Cat ∧ 𝐸 ∈ Cat)) |
| 6 | 5 | simprd 496 | 1 ⊢ (𝜑 → 𝐸 ∈ Cat) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 396 ∈ wcel 2119 〈cop 4561 class class class wbr 5072 (class class class)co 7356 Catccat 17621 Func cfunc 17812 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2711 ax-sep 5218 ax-nul 5228 ax-pr 5362 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2718 df-cleq 2731 df-clel 2814 df-nfc 2888 df-ne 2935 df-ral 3054 df-rex 3064 df-rab 3392 df-v 3433 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4262 df-if 4455 df-sn 4556 df-pr 4558 df-op 4562 df-uni 4839 df-br 5073 df-opab 5135 df-xp 5624 df-dm 5628 df-iota 6441 df-fv 6493 df-ov 7359 df-oprab 7360 df-mpo 7361 df-func 17816 |
| This theorem is referenced by: imasubc2 49642 imasubc3 49646 upciclem2 49657 upciclem3 49658 upeu2 49662 uobrcl 49683 natoppfb 49721 fuco11 49816 fuco11cl 49817 fuco21 49826 fuco11b 49827 fuco11bALT 49828 fuco22natlem2 49833 fuco22natlem 49835 fucoid 49838 fucocolem1 49843 fucolid 49851 fucorid 49852 postcofval 49854 postcofcl 49855 precofval 49857 precofvalALT 49858 precofcl 49860 prcoftposcurfuco 49873 prcof1 49878 prcof2a 49879 prcof2 49880 prcofdiag1 49883 prcofdiag 49884 fucoppclem 49897 fucoppcid 49898 eufunclem 50011 diag1f1olem 50023 diag2f1olem 50026 lanval 50109 ranval 50110 lanup 50131 ranup 50132 lmdpropd 50147 cmdpropd 50148 concl 50151 coccl 50152 concom 50153 coccom 50154 islmd 50155 iscmd 50156 termolmd 50160 lmdran 50161 cmdlan 50162 |
| Copyright terms: Public domain | W3C validator |