15 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] |
16789 | Only supernatural means could annihilate anything once it had being [Hobbes] |
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] |
23061 | Free atheism should start by questioning its faith in humanity [Gray] |
23057 | Gnosticism has a supreme creator God, giving way to a possibly hostile Demiurge [Gray] |
23056 | Judaism only became monotheistic around 550 BCE [Gray] |
23055 | Christians introduced the idea that a religion needs a creed [Gray] |
23058 | Buddhism has no divinity or souls, and the aim is to lose the illusion of a self [Gray] |