diff --git a/examples/overview.lisp b/examples/overview.lisp
index e002d84..fde7a16 100644
--- a/examples/overview.lisp
+++ b/examples/overview.lisp
@@ -47,8 +47,48 @@
 (defvar k-z2-2 (cat:k-z2 2))
 (print k-z2-2)
 
+#|
 (format t "~%~%Calculating the homology group of dimension 4:~%")
 (cat:homology k-z2-2 4)
+|#
+
+(format t "~%Creating sphere S^3:")
+(defvar s3 (cat:sphere 3))
+(print s3)
+
+(format t "~%Creating loop space Omega^2S^3:")
+(defvar o2s3 (cat:loop-space s3 2))
+(print o2s3)
+
+#|
+(format t "~%~%Calculating the homology groups of dimensions 4 to 6:~%")
+(cat:homology o2s3 4 6)
+|#
+
+(format t "~%Creating loop space Omega^1S^3:")
+(defvar os3 (cat:loop-space s3))
+(print os3)
+
+(format t "~%Retrieving the canonical generator of pi_2(Omega^1S^3):")
+(defvar L1 (cat:loop3 0 's3 1))
+(print L1)
+
+(defvar null-simp (cat:absm 3 cat:+null-loop+))
+(print null-simp)
+
+#|
+(defvar dos3 (cat:disk-pasting os3 3 '<D3>
+			       (list L1 null-simp L1 null-simp)))
+(print dos3)
+
+(cat:homology dos3 2 4)
+
+(defvar odos3 (cat:loop-space dos3))
+(print odos3)
+
+(cat:homology odos3 5)
+|#
+
 
 #+ccl (quit)
 #+sbcl (sb-ext:exit)
diff --git a/package.lisp b/package.lisp
index 9ed270c..6058725 100644
--- a/package.lisp
+++ b/package.lisp
@@ -186,6 +186,10 @@
 	   SOFT-DELTA-INFINITY
 	   SOFT-DELTA-N-BASIS
 
+	   ;; disk-pasting.lisp
+
+	   DISK-PASTING
+
 	   ;; effective-homology.lisp
 
 	   BUILD-RDCT
@@ -241,8 +245,10 @@
 
 	   ;; loop-spaces.lisp
 
+	   +NULL-LOOP+
 	   GDELTAB
 	   LOOP3
+	   LOOP-SPACE
 
 	   ;; macros.lisp