12 ideas
| 11970 | Logicians like their entities to exhibit a maximum degree of purity [Kaplan] |
| 11969 | Models nicely separate particulars from their clothing, and logicians often accept that metaphysically [Kaplan] |
| 13768 | Validity can preserve certainty in mathematics, but conditionals about contingents are another matter [Edgington] |
| 13770 | There are many different conditional mental states, and different conditional speech acts [Edgington] |
| 13764 | Are conditionals truth-functional - do the truth values of A and B determine the truth value of 'If A, B'? [Edgington] |
| 13765 | 'If A,B' must entail ¬(A & ¬B); otherwise we could have A true, B false, and If A,B true, invalidating modus ponens [Edgington] |
| 11971 | The simplest solution to transworld identification is to adopt bare particulars [Kaplan] |
| 11973 | Unusual people may have no counterparts, or several [Kaplan] |
| 11972 | Essence is a transworld heir line, rather than a collection of properties [Kaplan] |
| 11967 | Sentences might have the same sense when logically equivalent - or never have the same sense [Kaplan] |
| 1748 | Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius] |
| 5989 | Archelaus said life began in a primeval slime [Archelaus, by Schofield] |