14 ideas
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] |
18744 | Models are sets with functions and relations, and truth built up from the components [Horsten/Pettigrew] |
18740 | If 'exist' doesn't express a property, we can hardly ask for its essence [Horsten/Pettigrew] |
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] |
9145 | We form the image of a cardinal number by a double abstraction, from the elements and from their order [Cantor] |
19896 | It is not a law if not endorsed by the public [Hooker,R] |
19891 | Rule of law is superior to autonomy, because citizens can see what is expected [Hooker,R] |
19897 | Human laws must accord with the general laws of Nature [Hooker,R] |
17005 | Natural things observe certain laws, and things cannot do otherwise if they retain their forms [Hooker,R] |