diff -r dd9dde2d902b -r 80cc6dc4c98b thys2/blexer2.sc
--- a/thys2/blexer2.sc	Fri Dec 30 01:52:32 2022 +0000
+++ b/thys2/blexer2.sc	Fri Dec 30 17:37:51 2022 +0000
@@ -1505,7 +1505,7 @@
     }
 
   }
-  naive_matcher()
+  // naive_matcher()
   //single(SEQ(SEQ(STAR(CHAR('b')),STAR(STAR(SEQ(CHAR('a'),CHAR('b'))))),
   //  SEQ(SEQ(CHAR('b'),STAR(ALTS(CHAR('a'),ONE))),ONE)))
 
@@ -1638,13 +1638,14 @@
 
     def bders_bderssimp() {
 
-      test(single(SEQ(ALTS(ONE,CHAR('c')),
-        SEQ(SEQ(CHAR('a'),CHAR('a')),ALTS(ONE,CHAR('c'))))), 1) { (r: Rexp) => 
+      
+      val r = //(SEQ(ALTS(ONE,CHAR('c')),
+        SEQ(SEQ(CHAR('a'),CHAR('a')),ALTS(ONE,CHAR('c')))
           // ALTS(SEQ(SEQ(ONE,CHAR('a')),STAR(CHAR('a'))),SEQ(ALTS(CHAR('c'),ONE),STAR(ZERO))))))), 1) { (r: Rexp) => 
-          val ss = Set("aa")//stringsFromRexp(r)
+      val ss = Set("aa")//stringsFromRexp(r)
           val boolList = ss.map(s => {
             //val bdStrong = bdersStrong(s.toList, internalise(r))
-            val bds = bsimp(bders(s.toList, internalise(r)))
+            val bds = (bders(s.toList, internalise(r)))
             val bdssimp = bsimp(bders_simp(s.toList, internalise(r)))
             //val pdersSet = pderUNIV(r)//.flatMap(r => turnIntoTerms(r))
             //val pdersSetBroken = pdersSet.flatMap(r => turnIntoTerms(r))
@@ -1652,17 +1653,19 @@
             //bdStrong6Set.size <= pdersSet.size || bdStrong6Set.size <= pdersSetBroken.size ||
             //rs1_subseteq_rs2(bdStrong6Set.toSet, pdersSet union pdersSetBroken)//|| bdStrong6Set.size <= pdersSetBroken.size
             rprint(r)
-            println(bds)
-            println(bdssimp)
+            println(asize(bds))
+            println(asize(bdssimp))
             bds == bdssimp
           })
           //!boolList.exists(b => b == false)
           !boolList.exists(b => b == false)
           }
-        }
-        //  bders_bderssimp()
+        
+
+
+        bders_bderssimp()
 
 
 
-println("hi!!!!!")
-counterexample_check()
\ No newline at end of file
+// println("hi!!!!!")
+// counterexample_check()
\ No newline at end of file