creation date: Wed Dec 2 20:35:21 MET 1998

99#1 
A^3=id
B^11=id (A)
C^3=A (A B)
99#2 
A^11=id
B^3=id (A)
C^3=id (A B)

last updated: Wed Dec 2 20:35:33 MET 1998 , Anton Betten