14 ideas
21054 | Reason enables the unbounded extension of our rules and intentions [Kant] |
10476 | The idea that groups of concepts could be 'implicitly defined' was abandoned [Hodges,W] |
10478 | Since first-order languages are complete, |= and |- have the same meaning [Hodges,W] |
10477 | |= in model-theory means 'logical consequence' - it holds in all models [Hodges,W] |
10121 | Contradiction is not a sign of falsity, nor lack of contradiction a sign of truth [Pascal] |
10474 | |= should be read as 'is a model for' or 'satisfies' [Hodges,W] |
10473 | Model theory studies formal or natural language-interpretation using set-theory [Hodges,W] |
10475 | A 'structure' is an interpretation specifying objects and classes of quantification [Hodges,W] |
10481 | Models in model theory are structures, not sets of descriptions [Hodges,W] |
10480 | First-order logic can't discriminate between one infinite cardinal and another [Hodges,W] |
21053 | The manifest will in the world of phenomena has to conform to the laws of nature [Kant] |
21055 | Our aim is a constitution which combines maximum freedom with strong restraint [Kant] |
21056 | The vitality of business needs maximum freedom (while avoiding harm to others) [Kant] |
21057 | The highest ideal of social progress is a universal cosmopolitan existence [Kant] |