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-rw-r--r--users/Profpatsch/lens.nix3
1 files changed, 3 insertions, 0 deletions
diff --git a/users/Profpatsch/lens.nix b/users/Profpatsch/lens.nix
index db102d8b1a6b..58d9c27f5242 100644
--- a/users/Profpatsch/lens.nix
+++ b/users/Profpatsch/lens.nix
@@ -6,6 +6,8 @@ let
 
   comp = f: g: x: f (g x);
 
+  _ = v: f: f v;
+
   # Profunctor (p :: Type -> Type -> Type)
   Profunctor = rec {
     # dimap :: (a -> b) -> (c -> d) -> p b c -> p a d
@@ -113,6 +115,7 @@ let
 in {
   inherit
     id
+    _
     const
     comp
     Profunctor