include("ortholattice-header"). % OL basis: { AJ, B1, DM, CC, ONE } list(sos). x v (y v z) = y v (x v z). % AJ x v (x ^ y) = x. % B1 x ^ y = c(c(x) v c(y)). % DM c(c(x)) = x. % CC x v c(x) = y v c(y). % ONE end_of_list. list(sos). A ^ (B ^ C) != B ^ (A ^ C) | $Ans(AM). % denial of AM end_of_list.