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| Mirrors > Home > MPE Home > Th. List > Mathboxes > natrcl2 | Structured version Visualization version GIF version | ||
| Description: Reverse closure for a natural transformation. (Contributed by Zhi Wang, 1-Oct-2025.) |
| Ref | Expression |
|---|---|
| natrcl2.n | ⊢ 𝑁 = (𝐶 Nat 𝐷) |
| natrcl2.a | ⊢ (𝜑 → 𝐴 ∈ (〈𝐹, 𝐺〉𝑁〈𝐾, 𝐿〉)) |
| Ref | Expression |
|---|---|
| natrcl2 | ⊢ (𝜑 → 𝐹(𝐶 Func 𝐷)𝐺) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | natrcl2.a | . . . 4 ⊢ (𝜑 → 𝐴 ∈ (〈𝐹, 𝐺〉𝑁〈𝐾, 𝐿〉)) | |
| 2 | natrcl2.n | . . . . 5 ⊢ 𝑁 = (𝐶 Nat 𝐷) | |
| 3 | 2 | natrcl 18005 | . . . 4 ⊢ (𝐴 ∈ (〈𝐹, 𝐺〉𝑁〈𝐾, 𝐿〉) → (〈𝐹, 𝐺〉 ∈ (𝐶 Func 𝐷) ∧ 〈𝐾, 𝐿〉 ∈ (𝐶 Func 𝐷))) |
| 4 | 1, 3 | syl 18 | . . 3 ⊢ (𝜑 → (〈𝐹, 𝐺〉 ∈ (𝐶 Func 𝐷) ∧ 〈𝐾, 𝐿〉 ∈ (𝐶 Func 𝐷))) |
| 5 | 4 | simpld 499 | . 2 ⊢ (𝜑 → 〈𝐹, 𝐺〉 ∈ (𝐶 Func 𝐷)) |
| 6 | df-br 5110 | . 2 ⊢ (𝐹(𝐶 Func 𝐷)𝐺 ↔ 〈𝐹, 𝐺〉 ∈ (𝐶 Func 𝐷)) | |
| 7 | 5, 6 | sylibr 237 | 1 ⊢ (𝜑 → 𝐹(𝐶 Func 𝐷)𝐺) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 = wceq 1570 ∈ wcel 2143 〈cop 4595 class class class wbr 5109 (class class class)co 7410 Func cfunc 17906 Nat cnat 17996 |
| 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 5238 ax-sep 5257 ax-nul 5269 ax-pow 5336 ax-pr 5404 ax-un 7732 |
| 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-reu 3370 df-rab 3417 df-v 3457 df-sbc 3745 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-nul 4287 df-if 4488 df-pw 4564 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4873 df-iun 4958 df-br 5110 df-opab 5174 df-mpt 5193 df-id 5556 df-xp 5667 df-rel 5668 df-cnv 5669 df-co 5670 df-dm 5671 df-rn 5672 df-res 5673 df-ima 5674 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-ov 7413 df-oprab 7414 df-mpo 7415 df-1st 7982 df-2nd 7983 df-ixp 8892 df-func 17910 df-nat 17998 |
| This theorem is referenced by: natoppf 50007 fuco22 50117 fuco22natlem1 50120 fuco22natlem2 50121 fuco22natlem3 50122 fuco22natlem 50123 fuco23alem 50129 fucolid 50139 fucorid 50140 diag2f1olem 50314 funcsn 50319 coccl 50440 coccom 50442 |
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