1 files changed, 9 insertions, 0 deletions
diff --git a/Lattice.hs b/Lattice.hs
new file mode 100644
index 0000000..574c123
--- /dev/null
+++ b/Lattice.hs
@@ -0,0 +1,9 @@
+module Lattice where
+
+
+class Eq a => Lattice a where
+    join :: a -> a -> a
+    bottom :: a
+
+    joinList :: [a] -> a
+    joinList = foldl join bottom