diff --git a/src/core/CCFun.ml b/src/core/CCFun.ml
index 141b26d0..242032a5 100644
--- a/src/core/CCFun.ml
+++ b/src/core/CCFun.ml
@@ -2,24 +2,18 @@
 
 (** {1 Basic Functions} *)
 
-[@@@ocaml.warning "-32"]
-
-let opaque_identity x = x
-
-[@@@ocaml.warning "+32"]
-
 (* import standard implementations, if any *)
 
 include Sys
 include Stdlib
 include Fun
 
-let compose f g x = g (f x)
-let compose_binop f g x y = g (f x) (f y)
-let curry f x y = f (x, y)
-let uncurry f (x, y) = f x y
+let[@inline] compose f g x = g (f x)
+let[@inline] compose_binop f g x y = g (f x) (f y)
+let[@inline] curry f x y = f (x, y)
+let[@inline] uncurry f (x, y) = f x y
 
-let tap f x =
+let[@inline] tap f x =
   ignore (f x);
   x
 
@@ -67,8 +61,6 @@ let rec iterate n f x =
 
 module Infix = struct
   (* default implem for some operators *)
-  let ( |> ) = Stdlib.( |> )
-  let ( @@ ) = Stdlib.( @@ )
   let ( %> ) = compose
   let[@inline] ( % ) f g x = f (g x)
   let ( let@ ) = ( @@ )
diff --git a/src/core/CCFun.mli b/src/core/CCFun.mli
index a5cfeae5..5476b580 100644
--- a/src/core/CCFun.mli
+++ b/src/core/CCFun.mli
@@ -71,13 +71,6 @@ val iterate : int -> ('a -> 'a) -> 'a -> 'a
     Infix operators. *)
 
 module Infix : sig
-  val ( |> ) : 'a -> ('a -> 'b) -> 'b
-  (** [x |> f] is the same as [f x]. A 'pipe' operator. *)
-
-  val ( @@ ) : ('a -> 'b) -> 'a -> 'b
-  (** [f @@ x] is the same as [f x], but right-associative.
-      @since 0.5 *)
-
   val ( %> ) : ('a -> 'b) -> ('b -> 'c) -> 'a -> 'c
   (** [(f %> g) x] or [(%>) f g x] is [g (f x)]. Alias to [compose]. *)