4 ideas
13342 | Carnap defined consequence by contradiction, but this is unintuitive and changes with substitution [Tarski on Carnap] |
13251 | Each person is free to build their own logic, just by specifying a syntax [Carnap] |
18033 | The meaning of a representation is its role in thought, perception or decisions [Block] |
7399 | Even without religion, there are many guides to morality [Bacon] |