15 ideas
7719 | European philosophy consists of a series of footnotes to Plato [Whitehead] |
18739 | Three stages of philosophical logic: syntactic (1905-55), possible worlds (1963-85), widening (1990-) [Horsten/Pettigrew] |
18741 | Logical formalization makes concepts precise, and also shows their interrelation [Horsten/Pettigrew] |
10656 | With 'extensive connection', boundary elements are not included in domains [Whitehead, by Varzi] |
18744 | Models are sets with functions and relations, and truth built up from the components [Horsten/Pettigrew] |
9548 | A mathematical object exists if there is no contradiction in its definition [Waterfield] |
18740 | If 'exist' doesn't express a property, we can hardly ask for its essence [Horsten/Pettigrew] |
15389 | In Whitehead 'processes' consist of events beginning and ending [Whitehead, by Simons] |
18745 | A Tarskian model can be seen as a possible state of affairs [Horsten/Pettigrew] |
18747 | The 'spheres model' was added to possible worlds, to cope with counterfactuals [Horsten/Pettigrew] |
18748 | Epistemic logic introduced impossible worlds [Horsten/Pettigrew] |
18746 | Possible worlds models contain sets of possible worlds; this is a large metaphysical commitment [Horsten/Pettigrew] |
18750 | Using possible worlds for knowledge and morality may be a step too far [Horsten/Pettigrew] |
15247 | Whitehead held that perception was a necessary feature of all causation [Whitehead, by Harré/Madden] |
16962 | Whitehead replaced points with extended regions [Whitehead, by Quine] |