display all the ideas for this combination of philosophers
4 ideas
15145 | A kind essence is the necessary and sufficient properties for membership of a class [Chakravartty] |
15147 | Cluster kinds are explained simply by sharing some properties, not by an 'essence' [Chakravartty] |
3144 | Everything is what it is, and not another thing [Butler] |
21315 | A tree remains the same in the popular sense, but not in the strict philosophical sense [Butler] |