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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 49834 | . . 3 ⊢ (𝜑 → 𝐶 ∈ Cat) |
| 3 | fuco11.k | . . . 4 ⊢ (𝜑 → 𝐾(𝐷 Func 𝐸)𝐿) | |
| 4 | 3 | funcrcl2 49834 | . . 3 ⊢ (𝜑 → 𝐷 ∈ Cat) |
| 5 | 3 | funcrcl3 49835 | . . 3 ⊢ (𝜑 → 𝐸 ∈ Cat) |
| 6 | fuco11.o | . . 3 ⊢ (𝜑 → (〈𝐶, 𝐷〉 ∘F 𝐸) = 〈𝑂, 𝑃〉) | |
| 7 | eqidd 2764 | . . 3 ⊢ (𝜑 → ((𝐷 Func 𝐸) × (𝐶 Func 𝐷)) = ((𝐷 Func 𝐸) × (𝐶 Func 𝐷))) | |
| 8 | 2, 4, 5, 6, 7 | fucof1 50077 | . 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 50068 | . 2 ⊢ (𝜑 → 𝑈 ∈ ((𝐷 Func 𝐸) × (𝐶 Func 𝐷))) |
| 11 | 8, 10 | ffvelcdmd 7082 | 1 ⊢ (𝜑 → (𝑂‘𝑈) ∈ (𝐶 Func 𝐸)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1570 ∈ wcel 2143 〈cop 4596 class class class wbr 5110 × cxp 5661 ‘cfv 6538 (class class class)co 7412 Catccat 17721 Func cfunc 17912 ∘F cfuco 50071 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-rep 5239 ax-sep 5258 ax-nul 5270 ax-pow 5338 ax-pr 5406 ax-un 7734 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3080 df-rex 3090 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3457 df-sbc 3746 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4288 df-if 4489 df-pw 4565 df-sn 4591 df-pr 4593 df-op 4597 df-uni 4874 df-iun 4959 df-br 5111 df-opab 5175 df-mpt 5194 df-id 5558 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-1st 7987 df-2nd 7988 df-map 8827 df-ixp 8897 df-cat 17725 df-cid 17726 df-func 17916 df-cofu 17918 df-fuco 50072 |
| This theorem is referenced by: fuco11id 50089 fuco22natlem 50100 |
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