13309 | That something is a necessary condition of something else doesn't mean it caused it [Seneca] |
12633 | Definitions often give necessary but not sufficient conditions for an extension [Fodor] |
2963 | There may only be necessary and sufficient conditions (and counterfactuals) because we intervene in the world [Lockwood] |
3891 | If p entails q, then p is sufficient for q, and q is necessary for p [Scruton] |
4739 | In "if and only if" (iff), "if" expresses the sufficient condition, and "only if" the necessary condition [Engel] |