At 6:03 PM 1/11/5, Mark S Bilk wrote: >You ask one of them how the other one would answer the >question. Thus you always get a single inversion, and >the truth is the opposite of whatever he says. You never >do find out which is the liar and which the truth-teller, >which makes sense, because there are four possibilities -- >red- or green-foot is the truthteller, times left or right is the >way to San Jose. Since you only receive one binary bit >of information, you can resolve one of the two sets of >alternatives, but not both (which would require two bits).
Yep, so it was useful for Richard to provide us with one of those two bits, so in this case we can know both. Regards, Horace Heffner
