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Ideas of Horsten,L/Pettigrew,R, by Text

[, fl. 2011, Professors at the University of Bristol.]

2014 Mathematical Methods in Philosophy
1 p.15 Three stages of philosophical logic: syntactic (1905-55), possible worlds (1963-85), widening (1990-)
2 p.16 Logical formalization makes concepts precise, and also shows their interrelation
2 p.16 If 'exist' doesn't express a property, we can hardly ask for its essence
3 p.18 Models are sets with functions and relations, and truth built up from the components
3 p.18 A Tarskian model can be seen as a possible state of affairs
3 p.19 Possible worlds models contain sets of possible worlds; this is a large metaphysical commitment
4 p.19 The 'spheres model' was added to possible worlds, to cope with counterfactuals
4 p.19 Epistemic logic introduced impossible worlds
4 p.19 Goodman argued that the confirmation relation can never be formalised
5 p.26 Using possible worlds for knowledge and morality may be a step too far