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| Mirrors > Home > MPE Home > Th. List > natfn | Structured version Visualization version GIF version | ||
| Description: A natural transformation is a function on the objects of 𝐶. (Contributed by Mario Carneiro, 6-Jan-2017.) |
| Ref | Expression |
|---|---|
| natrcl.1 | ⊢ 𝑁 = (𝐶 Nat 𝐷) |
| natixp.2 | ⊢ (𝜑 → 𝐴 ∈ (〈𝐹, 𝐺〉𝑁〈𝐾, 𝐿〉)) |
| natixp.b | ⊢ 𝐵 = (Base‘𝐶) |
| Ref | Expression |
|---|---|
| natfn | ⊢ (𝜑 → 𝐴 Fn 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | natrcl.1 | . . 3 ⊢ 𝑁 = (𝐶 Nat 𝐷) | |
| 2 | natixp.2 | . . 3 ⊢ (𝜑 → 𝐴 ∈ (〈𝐹, 𝐺〉𝑁〈𝐾, 𝐿〉)) | |
| 3 | natixp.b | . . 3 ⊢ 𝐵 = (Base‘𝐶) | |
| 4 | eqid 2763 | . . 3 ⊢ (Hom ‘𝐷) = (Hom ‘𝐷) | |
| 5 | 1, 2, 3, 4 | natixp 18007 | . 2 ⊢ (𝜑 → 𝐴 ∈ X𝑥 ∈ 𝐵 ((𝐹‘𝑥)(Hom ‘𝐷)(𝐾‘𝑥))) |
| 6 | ixpfn 8897 | . 2 ⊢ (𝐴 ∈ X𝑥 ∈ 𝐵 ((𝐹‘𝑥)(Hom ‘𝐷)(𝐾‘𝑥)) → 𝐴 Fn 𝐵) | |
| 7 | 5, 6 | syl 18 | 1 ⊢ (𝜑 → 𝐴 Fn 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1570 ∈ wcel 2143 〈cop 4595 Fn wfn 6531 ‘cfv 6536 (class class class)co 7410 Xcixp 8891 Basecbs 17264 Hom chom 17316 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: fuclid 18021 fucrid 18022 curfuncf 18289 yonedainv 18332 yonffthlem 18333 natoppf 50007 fucorid2 50141 precofval2 50147 termcnatval 50313 funcsn 50319 0fucterm 50321 |
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