karlvonl@xxxxxxx writes: >>Playing With Pyramids says in multiple places that a koan has one or >>more pyramids. >Ah. Well, I didn't learn Zendo from Playing With Pyramids. I learned >it from Kory Heath. :-) But that was almost 10 years ago; the rules >may have changed since then. Kory, at least here, argued against the null koan. >Ambiguity is not unique to the null koan. Consider "AKHTBN if all of >its blue pyramids are upright". A koan without any blue pieces is >just as ambiguous. As is obvious from my previous answer, I don't think this is ambiguous; a koan with no blue pyramids obviously has all (ie, none) of its blue pyramids upright. Zendo pretty much breaks down (at least in terms of having a common rule system) if you don't treat "all" and inequalities as covering the zero case--rules assuming that "all" is false when nothing of the set is present rachet up in complexity for players who take the mathematical view. -- Joshua Kronengold (mneme@(io.com, labcats.org)) |\ _,,,--,,_ ,) --^-- "Did you know, if you increment enough, you /,`.-'`' -, ;-;;' /\\ get an extra digit?" "I knew," weeps Six. |,4- ) )-,_ ) /\ /-\\\ "We knew. But we had forgotten." '---''(_/--' (_/-'