8 ideas
21597 | Logical connectives have the highest precision, yet are infected by the vagueness of true and false [Russell, by Williamson] |
9051 | Since natural language is not precise it cannot be in the province of logic [Russell, by Keefe/Smith] |
9054 | Vagueness is only a characteristic of representations, such as language [Russell] |
10558 | Abstract objects are actually constituted by the properties by which we conceive them [Zalta] |
8793 | If observation is knowledge, it is not just an experience; it is a justification in the space of reasons [Sellars] |
8792 | Observations like 'this is green' presuppose truths about what is a reliable symptom of what [Sellars] |
8791 | The concept of 'green' involves a battery of other concepts [Sellars] |
10557 | Abstract objects are captured by second-order modal logic, plus 'encoding' formulas [Zalta] |