1 files changed, 32 insertions, 14 deletions
diff --git a/comparison/Inpla/src/qsort-800000.in b/comparison/Inpla/src/qsort-800000.in
index 8226655..6d28245 100644
--- a/comparison/Inpla/src/qsort-800000.in
+++ b/comparison/Inpla/src/qsort-800000.in
@@ -1,26 +1,44 @@
 // Quick sort
-QS(ret) >< [] => ret~[];
-QS(ret) >< (int x):xs =>
-	Part(x, left, right)~xs,
-	QS(cntl)~left, QS(cntr)~right,
+qsort(ret) >< [] => ret~[];
+qsort(ret) >< (int x):xs =>
+	part(x, left, right)~xs,
+	qsort(cntl)~left, qsort(cntr)~right,
 	Append(ret, x:cntl)~cntr;
 
 // Note: `Append' is implemented as built-in.
 
 
-Part(int x, a, b) >< [] => a~[], b~[];
-Part(int x, a, b) >< (int y):ys
-| y<x => b~(y:cnt), Part(x, a, cnt)~ys
-| _   => a~(y:cnt), Part(x, cnt, b)~ys;
+part(int x, a, b) >< [] => a~[], b~[];
+part(int x, a, b) >< (int y):ys
+| y<x => b~(y:cnt), part(x, a, cnt)~ys
+| _   => a~(y:cnt), part(x, cnt, b)~ys;
 
 
-const LIST_ELEM=800000;
-
-MkRandList(ret) >< (int n)
-| n>0 => ret~(rd:cnt), MkRandList(cnt)~(n-1) 
+// creates a random list
+make_RandList(ret) >< (int n)
+| n>0 => ret~(rd:cnt), make_RandList(cnt)~(n-1) 
   where rd=rand(10000)
 | _ => ret~[];
 
-MkRandList(cnt)~(LIST_ELEM),
-QS(ret)~cnt;
+
+// validation checks
+valid(ret) >< [] => ret~False;
+valid(ret) >< x:xs => valid_Cons(ret,x)~xs;
+
+valid_Cons(ret, int x) >< [] => ret~True;
+valid_Cons(ret, int x) >< (int y):ys
+| x<=y => valid_Cons(ret,y)~ys
+| _ => ret~False, Eraser~ys;
+
+// The `Eraser' is a built-in agent defined for any agents as follows:
+//Eraser >< Alpha(a1, ..., a5) => Eraser~a1, ..., Eraser~a5;
+
+
+// Main
+const LIST_ELEM=800000;
+
+make_RandList(rndlist)~(LIST_ELEM),
+qsort(sorted)~rndlist,
+valid(ret)~sorted;
+
 ret;