14 ideas
6859 | Analytic philosophy has much higher standards of thinking than continental philosophy [Williamson] |
14970 | Normal system K has five axioms and rules [Cresswell] |
14971 | D is valid on every serial frame, but not where there are dead ends [Cresswell] |
14972 | S4 has 14 modalities, and always reduces to a maximum of three modal operators [Cresswell] |
14973 | In S5 all the long complex modalities reduce to just three, and their negations [Cresswell] |
14976 | Reject the Barcan if quantifiers are confined to worlds, and different things exist in other worlds [Cresswell] |
6862 | Fuzzy logic uses a continuum of truth, but it implies contradictions [Williamson] |
6858 | Formal logic struck me as exactly the language I wanted to think in [Williamson] |
6863 | Close to conceptual boundaries judgement is too unreliable to give knowledge [Williamson] |
14974 | A relation is 'Euclidean' if aRb and aRc imply bRc [Cresswell] |
6861 | What sort of logic is needed for vague concepts, and what sort of concept of truth? [Williamson] |
14975 | A de dicto necessity is true in all worlds, but not necessarily of the same thing in each world [Cresswell] |
6860 | How can one discriminate yellow from red, but not the colours in between? [Williamson] |
20695 | God's eternal power and deity are clearly seen in what has been created [Paul] |