4 ideas
3016 | Even the gods cannot strive against necessity [Pittacus, by Diog. Laertius] |
14288 | 'If A,B' affirms that A⊃B, and also that this wouldn't change if A were certain [Jackson, by Edgington] |
13769 | Conditionals are truth-functional, but should only be asserted when they are confident [Jackson, by Edgington] |
22307 | Propositions don't name facts, because two opposed propositions can match one fact [Russell] |