display all the ideas for this combination of texts
3 ideas
12196 | A valid hypothetical syllogism is 'that which does not begin with a truth and end with a falsehood' [Sext.Empiricus] |
10884 | A theory is 'categorical' if it has just one model up to isomorphism [Horsten] |
1902 | Since Socrates either died when he was alive (a contradiction) or died when he was dead (meaningless), he didn't die [Sext.Empiricus] |