4 ideas
14248 | We could accept the integers as primitive, then use sets to construct the rest [Cohen] |
20795 | Some things are their own criterion, such as straightness, a set of scales, or light [Sext.Empiricus] |
20794 | How can sceptics show there is no criterion? Weak without, contradiction with [Sext.Empiricus] |
19087 | The meaning or purport of a symbol is all the rational conduct it would lead to [Peirce] |