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diff --git a/code/monads.ml b/code/monads.ml
index e48fd8d0..b678a92c 100644
--- a/code/monads.ml
+++ b/code/monads.ml
@@ -415,13 +415,6 @@ end = struct
   end
 end
 
-(*
-# LL.(run(plus (unit 1) (unit 2) >>= fun i -> plus (unit i) (unit(10*i)) ));;
-- : ('_a, int) LL.result = [[1; 10; 2; 20]]
-# LL.(run(plus (unit 1) (unit 2) >>= fun i -> elevate L.(plus (unit i) (unit(10*i)) )));;
-- : ('_a, int) LL.result = [[1; 2]; [1; 20]; [10; 2]; [10; 20]]
-*)
-
 
 (* must be parameterized on (struct type err = ... end) *)
 module Error_monad(Err : sig
@@ -516,26 +509,6 @@ module Failure = Error_monad(struct
   *)
 end)
 
-(*
-# EL.(run( plus (throw "bye") (unit 20) >>= fun i -> unit(i+10)));;
-- : int EL.result = [Failure.Error "bye"; Failure.Success 30]
-# LE.(run( plus (elevate (Failure.throw "bye")) (unit 20) >>= fun i -> unit(i+10)));;
-- : int LE.result = Failure.Error "bye"
-# EL.(run_exn( plus (throw "bye") (unit 20) >>= fun i -> unit(i+10)));;
-Exception: Failure "bye".
-# LE.(run_exn( plus (elevate (Failure.throw "bye")) (unit 20) >>= fun i -> unit(i+10)));;
-Exception: Failure "bye".
-
-# ES.(run( elevate (S.puts succ) >> throw "bye" >> elevate S.get >>= fun i -> unit(i+10) )) 0;;
-- : int Failure.error * S.store = (Failure.Error "bye", 1)
-# SE.(run( puts succ >> elevate (Failure.throw "bye") >> get >>= fun i -> unit(i+10) )) 0;;
-- : (int * S.store) Failure.result = Failure.Error "bye"
-# ES.(run_exn( elevate (S.puts succ) >> throw "bye" >> elevate S.get >>= fun i -> unit(i+10) )) 0;;
-Exception: Failure "bye".
-# SE.(run_exn( puts succ >> elevate (Failure.throw "bye") >> get >>= fun i -> unit(i+10) )) 0;;
-Exception: Failure "bye".
- *)
-
 
 (* must be parameterized on (struct type env = ... end) *)
 module Reader_monad(Env : sig type env end) : sig
@@ -667,6 +640,7 @@ end = struct
   end
 end
 
+
 (* State monad with different interface (structured store) *)
 module Ref_monad(V : sig
   type value