4 ideas
10121 | Contradiction is not a sign of falsity, nor lack of contradiction a sign of truth [Pascal] |
9052 | Vague predicates lack application; there are no borderline cases; vague F is not F [Unger, by Keefe/Smith] |
16070 | There are no objects with proper parts; there are only mereological simples [Unger, by Wasserman] |
14470 | Explanatory exclusion: there cannot be two separate complete explanations of a single event [Kim] |