diff options
Diffstat (limited to 'Nominal/Helpers')
| -rw-r--r-- | Nominal/Helpers/CountableString.lean | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Nominal/Helpers/CountableString.lean b/Nominal/Helpers/CountableString.lean index 7d2fcb7..7d94516 100644 --- a/Nominal/Helpers/CountableString.lean +++ b/Nominal/Helpers/CountableString.lean @@ -9,4 +9,6 @@ instance : Countable Char where instance : Countable String := Countable.of_equiv (List Char) { toFun := String.mk - invFun := String.data } + invFun := String.data + left_inv x := by simp + right_inv x := by simp } |