Dear Forum, I would like to write a short code to do the following task:for any two subgroups of a group G, check whether their product is a subgroup of G and count their number. A failed attempt was:
G:=AlternatingGroup(4); Alt( [ 1 .. 4 ] ) L:=LatticeSubgroups(G); count:=0; for H in L do; for K in L do; if IsSubgroup(G,HK) then count:=count+1; fi; od; od; 0 Error, no method found! For debugging hints type ?Recovery from NoMethodFound Error, no 1st choice method found for `Enumerator' on 1 arguments I would be obliged for any help. Thanks, J. _______________________________________________ Forum mailing list Forum@mail.gap-system.org http://mail.gap-system.org/mailman/listinfo/forum
