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Jun 8, 2015 at 3:33 comment added Manfred Weis I think I will have to edit my question and state all my open questions with the hanging paradoxon, and there are some of them.
Jun 8, 2015 at 3:11 comment added Manfred Weis What I also don't understand, is the common conclusion that the prisoner will be still alive if the hanging doesn't take place on Friday; if he had been hung on a previous day, he also would not be hung on Friday and thus could not witness a contradiction in the judge's prediction.
Jun 8, 2015 at 3:05 comment added Manfred Weis Sorry for being picky, but in your answer you use the word "knowing"; am I correct that it means that it is impossible to determine the day of hanging logically, mathematically or algorithmically and, that mere guessing or the outcome of a random experiment (like flipping a coin) are not covered by knowing? Another open question is, how often the prisoner may state that he expects the hanging at noon time of the present day?
Jun 7, 2015 at 13:45 history answered Bjørn Kjos-Hanssen CC BY-SA 3.0