--- a/main_templates3/re.scala	Wed Nov 04 15:35:31 2020 +0000
+++ b/main_templates3/re.scala	Fri Nov 06 01:07:26 2020 +0000
@@ -39,7 +39,7 @@
   def ~ (r: String) = SEQ(s, r)
 }
 
-// (5) Complete the function nullable according to
+// (1) Complete the function nullable according to
 // the definition given in the coursework; this 
 // function checks whether a regular expression
 // can match the empty string and Returns a boolean
@@ -48,7 +48,7 @@
 def nullable (r: Rexp) : Boolean = ???
 
 
-// (6) Complete the function der according to
+// (2) Complete the function der according to
 // the definition given in the coursework; this
 // function calculates the derivative of a 
 // regular expression w.r.t. a character.
@@ -56,7 +56,7 @@
 def der (c: Char, r: Rexp) : Rexp = ???
 
 
-// (7) Complete the simp function according to
+// (3) Complete the simp function according to
 // the specification given in the coursework; this
 // function simplifies a regular expression from
 // the inside out, like you would simplify arithmetic 
@@ -66,7 +66,7 @@
 def simp(r: Rexp) : Rexp = ???
 
 
-// (8) Complete the two functions below; the first 
+// (4) Complete the two functions below; the first 
 // calculates the derivative w.r.t. a string; the second
 // is the regular expression matcher taking a regular
 // expression and a string and checks whether the
@@ -77,7 +77,7 @@
 def matcher(r: Rexp, s: String): Boolean = ???
 
 
-// (9) Complete the size function for regular
+// (5) Complete the size function for regular
 // expressions according to the specification 
 // given in the coursework.