> I have a question fFor the zendo experts. > Is it legal to have a Rule which can only have one valid koan? > Example might be: > "A Koan has the buddha nature if it contains exactly one blue pyramid > standing up." "A Koan has the buddha nature if it contains only 5 > complete red trees in a row." > > That seems a little overly specific, but probably legal ... ? Having a rule with only one koan that has (or does not have) the Buddha-nature is perfectly legal, although neither of your examples meets that criterion. For example, your first rule could be satisfied by a single large upright blue, a single medium upright blue, or a single small upright blue. - Jeff