clauses(hints).

% 15 hints from 1 proof(s) in file x2.out, Fri May  5 09:04:17 2006

e * x = x # label(1).
x ' * x = e # label(2).
(x * y) * z = x * (y * z) # label(3).
x * x = e # label(4).
c2 * c1 != c1 * c2 # label(5).
x ' * (x * y) = y # label(6).
x * (x * y) = y # label(7).
x * (y * (x * y)) = e # label(8).
x ' ' * e = x # label(9).
x ' * e = x # label(10).
x ' = x # label(11).
x * e = x # label(12).
x * (y * x) = y # label(13).
x * y = y * x # label(14).
$F # label(15).
end_of_list.