>On Saturday, July 6, 2013 5:08:41 PM UTC+10, Paul wrote: >> Nick Davies's book, Flat Earth News, says "it is a very safe bet that >> there are mistakes in this book." Later, I met the author and reminded him >> of this quote, and asked him what the mistakes were. He replied that the >> only error he knew of was extremely minor. (He described the error, but I >> forget the details.) If we tweak this account just a little bit and deem >> the book to be free of mistakes, then we get the liar paradox -- the only >> mistake in the book is the assertion that there are mistakes in the book. >> >> >> >> Paul Epstein > > > >I made a quick program for this ... > >herc said [liar bethy ] > >bethy said > [liar herc] & > [herc said [liar bethy]] > -> > truthful bethy > -> > liar herc > > > >> if you always lie, and you say that I am a liar, then I must be telling >> the truth, which means that you do always lie (?). > Too old and outdated.
Nowadays we assign probability values to a statement, and the average of your two statements is p = 0,5 depending on how true and false would be defined.