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| Mirrors > Home > MPE Home > Th. List > Mathboxes > funcrcl2 | 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 |
|---|---|
| funcrcl2 | ⊢ (𝜑 → 𝐷 ∈ Cat) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | funcrcl2.f | . . 3 ⊢ (𝜑 → 𝐹(𝐷 Func 𝐸)𝐺) | |
| 2 | df-br 5087 | . . . 4 ⊢ (𝐹(𝐷 Func 𝐸)𝐺 ↔ 〈𝐹, 𝐺〉 ∈ (𝐷 Func 𝐸)) | |
| 3 | 2 | biimpi 216 | . . 3 ⊢ (𝐹(𝐷 Func 𝐸)𝐺 → 〈𝐹, 𝐺〉 ∈ (𝐷 Func 𝐸)) |
| 4 | funcrcl 17824 | . . 3 ⊢ (〈𝐹, 𝐺〉 ∈ (𝐷 Func 𝐸) → (𝐷 ∈ Cat ∧ 𝐸 ∈ Cat)) | |
| 5 | 1, 3, 4 | 3syl 18 | . 2 ⊢ (𝜑 → (𝐷 ∈ Cat ∧ 𝐸 ∈ Cat)) |
| 6 | 5 | simpld 494 | 1 ⊢ (𝜑 → 𝐷 ∈ Cat) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 ∈ wcel 2114 〈cop 4574 class class class wbr 5086 (class class class)co 7361 Catccat 17624 Func cfunc 17815 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5232 ax-nul 5242 ax-pr 5371 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-xp 5631 df-dm 5635 df-iota 6449 df-fv 6501 df-ov 7364 df-oprab 7365 df-mpo 7366 df-func 17819 |
| This theorem is referenced by: cofid1a 49602 cofid2a 49603 cofidvala 49606 cofidf2a 49607 cofidval 49609 imaid 49644 imaf1co 49645 fthcomf 49647 upciclem3 49658 upciclem4 49659 upeu 49661 upeu2 49662 uobrcl 49683 upeu4 49686 uptrlem1 49700 natoppfb 49721 fuco11 49816 fuco11cl 49817 fuco21 49826 fuco11b 49827 fuco11bALT 49828 fucoid 49838 fucolid 49851 fucorid 49852 postcofval 49854 postcofcl 49855 precofval 49857 precofvalALT 49858 precofcl 49860 prcof1 49878 prcof2a 49879 prcof2 49880 prcofdiag1 49883 prcofdiag 49884 fucoppclem 49897 fucoppcid 49898 thincciso2 49945 isinito2 49989 isinito3 49990 eufunclem 50011 funcsn 50031 cofuterm 50035 isinito4 50037 lanval 50109 ranval 50110 lmdpropd 50147 cmdpropd 50148 concl 50151 coccl 50152 concom 50153 coccom 50154 islmd 50155 iscmd 50156 |
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