diff options
Diffstat (limited to 'Projections.thy')
| -rw-r--r-- | Projections.thy | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Projections.thy b/Projections.thy index a28c66b..c89b569 100644 --- a/Projections.thy +++ b/Projections.thy @@ -11,10 +11,10 @@ imports Prod Sum begin -definition fst ("(2fst[_, _])") +definition fst ("(2fst[_,/ _])") where "fst[A, B] \<equiv> \<lambda>(p: \<Sum>x: A. B x). indSum (\<lambda>_. A) (\<lambda>x y. x) p" -definition snd ("(2snd[_, _])") +definition snd ("(2snd[_,/ _])") where "snd[A, B] \<equiv> \<lambda>(p: \<Sum>x: A. B x). indSum (\<lambda>p. B (fst[A, B]`p)) (\<lambda>x y. y) p" lemma fst_type: |