diff options
Diffstat (limited to 'lib/ur/list.ur')
-rw-r--r-- | lib/ur/list.ur | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/ur/list.ur b/lib/ur/list.ur index cbb4faf2..11895884 100644 --- a/lib/ur/list.ur +++ b/lib/ur/list.ur @@ -216,6 +216,16 @@ fun foldlMap [a] [b] [c] f = fold [] end +fun mem [a] (_ : eq a) (x : a) = + let + fun mm ls = + case ls of + [] => False + | y :: ls => y = x || mm ls + in + mm + end + fun find [a] f = let fun find' ls = |