2 May
2019
2 May
'19
12:10 p.m.
What's the mathematical version of this question? Because anyone can be mistaken about anything, including their own beliefs, it would seem. —Dan Jim Propp wrote: ----- I recall encountering in one of Raymond Smullyan’s books a thought experiment that convinced me that it is possible to be mistaken about what one believes. That is, one can say “I believe X” and be speaking falsely even though one is not intentionally lying. Does anyone know what thought experiment I’m dimly recalling, and which of his books it appears in? -----