mirror of
https://github.com/idris-lang/Idris2.git
synced 2024-12-24 20:23:11 +03:00
4 lines
91 B
Idris
4 lines
91 B
Idris
fstDup: (xs : List a) -> map fst (map dup xs) === xs
|
|
fstDup Nil = Refl
|
|
fstDup (x::xs) = ?a
|