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| Mirrors > Home > MPE Home > Th. List > Mathboxes > fuco11cl | Structured version Visualization version GIF version | ||
| Description: The object part of the functor composition bifunctor maps into (𝐶 Func 𝐸). (Contributed by Zhi Wang, 30-Sep-2025.) |
| Ref | Expression |
|---|---|
| fuco11.o | ⊢ (𝜑 → (〈𝐶, 𝐷〉 ∘F 𝐸) = 〈𝑂, 𝑃〉) |
| fuco11.f | ⊢ (𝜑 → 𝐹(𝐶 Func 𝐷)𝐺) |
| fuco11.k | ⊢ (𝜑 → 𝐾(𝐷 Func 𝐸)𝐿) |
| fuco11.u | ⊢ (𝜑 → 𝑈 = 〈〈𝐾, 𝐿〉, 〈𝐹, 𝐺〉〉) |
| Ref | Expression |
|---|---|
| fuco11cl | ⊢ (𝜑 → (𝑂‘𝑈) ∈ (𝐶 Func 𝐸)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fuco11.f | . . . 4 ⊢ (𝜑 → 𝐹(𝐶 Func 𝐷)𝐺) | |
| 2 | 1 | funcrcl2 49576 | . . 3 ⊢ (𝜑 → 𝐶 ∈ Cat) |
| 3 | fuco11.k | . . . 4 ⊢ (𝜑 → 𝐾(𝐷 Func 𝐸)𝐿) | |
| 4 | 3 | funcrcl2 49576 | . . 3 ⊢ (𝜑 → 𝐷 ∈ Cat) |
| 5 | 3 | funcrcl3 49577 | . . 3 ⊢ (𝜑 → 𝐸 ∈ Cat) |
| 6 | fuco11.o | . . 3 ⊢ (𝜑 → (〈𝐶, 𝐷〉 ∘F 𝐸) = 〈𝑂, 𝑃〉) | |
| 7 | eqidd 2741 | . . 3 ⊢ (𝜑 → ((𝐷 Func 𝐸) × (𝐶 Func 𝐷)) = ((𝐷 Func 𝐸) × (𝐶 Func 𝐷))) | |
| 8 | 2, 4, 5, 6, 7 | fucof1 49819 | . 2 ⊢ (𝜑 → 𝑂:((𝐷 Func 𝐸) × (𝐶 Func 𝐷))⟶(𝐶 Func 𝐸)) |
| 9 | fuco11.u | . . 3 ⊢ (𝜑 → 𝑈 = 〈〈𝐾, 𝐿〉, 〈𝐹, 𝐺〉〉) | |
| 10 | 7, 9, 3, 1 | fuco2eld 49810 | . 2 ⊢ (𝜑 → 𝑈 ∈ ((𝐷 Func 𝐸) × (𝐶 Func 𝐷))) |
| 11 | 8, 10 | ffvelcdmd 7033 | 1 ⊢ (𝜑 → (𝑂‘𝑈) ∈ (𝐶 Func 𝐸)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1547 ∈ wcel 2119 〈cop 4568 class class class wbr 5079 × cxp 5623 ‘cfv 6492 (class class class)co 7363 Catccat 17628 Func cfunc 17819 ∘F cfuco 49813 |
| 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 2712 ax-rep 5206 ax-sep 5225 ax-nul 5235 ax-pow 5301 ax-pr 5369 ax-un 7685 |
| 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 2719 df-cleq 2732 df-clel 2815 df-nfc 2889 df-ne 2936 df-ral 3055 df-rex 3065 df-rmo 3345 df-reu 3346 df-rab 3393 df-v 3434 df-sbc 3731 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4269 df-if 4462 df-pw 4538 df-sn 4563 df-pr 4565 df-op 4569 df-uni 4846 df-iun 4930 df-br 5080 df-opab 5142 df-mpt 5161 df-id 5520 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-riota 7320 df-ov 7366 df-oprab 7367 df-mpo 7368 df-1st 7938 df-2nd 7939 df-map 8772 df-ixp 8843 df-cat 17632 df-cid 17633 df-func 17823 df-cofu 17825 df-fuco 49814 |
| This theorem is referenced by: fuco11id 49831 fuco22natlem 49842 |
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