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-rw-r--r--lib/ur/list.urs4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/ur/list.urs b/lib/ur/list.urs
index 92589508..1b80a9d3 100644
--- a/lib/ur/list.urs
+++ b/lib/ur/list.urs
@@ -26,3 +26,7 @@ val exists : a ::: Type -> (a -> bool) -> t a -> bool
val foldlMap : a ::: Type -> b ::: Type -> c ::: Type
-> (a -> b -> c * b) -> b -> t a -> t c * b
+
+val assoc : a ::: Type -> b ::: Type -> eq a -> a -> t (a * b) -> option b
+
+val search : a ::: Type -> b ::: Type -> (a -> option b) -> t a -> option b