diff options
Diffstat (limited to 'backends/lean')
| -rw-r--r-- | backends/lean/Base/Primitives/Base.lean | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/backends/lean/Base/Primitives/Base.lean b/backends/lean/Base/Primitives/Base.lean index 4c5b2795..62546ac3 100644 --- a/backends/lean/Base/Primitives/Base.lean +++ b/backends/lean/Base/Primitives/Base.lean @@ -130,6 +130,8 @@ def Result.attach {α: Type} (o : Result α): Result { x : α // o = ok x } := ---------- @[simp] def core.mem.replace (a : Type) (x : a) (_ : a) : a × a := (x, x) +/- [core::option::Option::take] -/ +@[simp] def Option.take (T: Type) (self: Option T): Option T × Option T := (self, .none) /-- Aeneas-translated function -- useful to reduce non-recursive definitions. Use with `simp [ aeneas ]` -/ |