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-rw-r--r--lib/ur/listPair.urs3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/ur/listPair.urs b/lib/ur/listPair.urs
index f2287c13..218b9420 100644
--- a/lib/ur/listPair.urs
+++ b/lib/ur/listPair.urs
@@ -5,3 +5,6 @@ val mapX : a ::: Type -> b ::: Type -> ctx ::: {Unit}
-> (a -> b -> xml ctx [] []) -> list a -> list b -> xml ctx [] []
val all : a ::: Type -> b ::: Type -> (a -> b -> bool) -> list a -> list b -> bool
+
+val map2 : a ::: Type -> b ::: Type -> c ::: Type
+ -> (a -> b -> c) -> list a -> list b -> list c