diff options
Diffstat (limited to 'spartan/lib/Maybe.thy')
| -rw-r--r-- | spartan/lib/Maybe.thy | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/spartan/lib/Maybe.thy b/spartan/lib/Maybe.thy index da22a4e..e06a07b 100644 --- a/spartan/lib/Maybe.thy +++ b/spartan/lib/Maybe.thy @@ -64,8 +64,8 @@ lemmas abbreviation "MaybeRec A C \<equiv> MaybeInd A (K C)" -definition none_i ("none") where [implicit]: "none \<equiv> Maybe.none ?" -definition some_i ("some") where [implicit]: "some a \<equiv> Maybe.some ? a" +definition none_i ("none") where [implicit]: "none \<equiv> Maybe.none {}" +definition some_i ("some") where [implicit]: "some a \<equiv> Maybe.some {} a" translations "none" \<leftharpoondown> "CONST Maybe.none A" |