Better styling for utility

lib/utility/utility.ml

@@ -48,8 +48,8 @@ let int_not a =
 (*   else if x < base then *)
 (*     String.get alphabet x |> String.make 1 *)
 (*   else *)
-(*     (fromIntToString (alphabet) (x/base - 1)) ^ (String.get alphabet (x mod base) *)
-(*                                                  |> String.make 1) *)
+(*     (fromIntToString (alphabet) (x/base - 1)) ^ *)
+(*     (String.get alphabet (x mod base) |> String.make 1) *)
 
 
 (* true if every element of la is in lb *)
@@ -58,9 +58,7 @@ let inclusion la lb =
     function
       [] -> true
     | b::lb ->
-      if List.mem b la
-      then aux la lb
-      else false
+      List.mem b la && aux la lb
   in
   aux lb la
 
@@ -127,9 +125,9 @@ let unique_union_assoc f l1 l2 =
 
 (* returns a list with at most n items and the rest in the second *)
 let rec take (n: int) (l: 'a list) : ('a list * 'a list) =
-  match n with
-  | 0 -> ([], l)
-  | n ->
+  if n = 0
+  then ([], l)
+  else
     match l with
     | [] -> ([], [])
     | i::ls ->