4 ideas
17962 | The truth-maker principle is that every truth has a sufficient truth-maker [Forrest] |
14895 | 'Superficial' contingency: false in some world; 'Deep' contingency: no obvious verification [Evans, by Macià/Garcia-Carpentiro] |
11881 | Rigid designators can be meaningful even if empty [Evans, by Mackie,P] |
8693 | An 'abstraction principle' says two things are identical if they are 'equivalent' in some respect [Boolos] |