8 ideas
5831 | The new view is that "water" is a name, and has no definition [Schwartz,SP] |
13831 | Logic is based on transitions between sentences [Prawitz] |
13825 | Natural deduction introduction rules may represent 'definitions' of logical connectives [Prawitz] |
5829 | We refer to Thales successfully by name, even if all descriptions of him are false [Schwartz,SP] |
5830 | The traditional theory of names says some of the descriptions must be correct [Schwartz,SP] |
13823 | In natural deduction, inferences are atomic steps involving just one logical constant [Prawitz] |
13007 | Archimedes defined a straight line as the shortest distance between two points [Archimedes, by Leibniz] |
5826 | The intension of "lemon" is the conjunction of properties associated with it [Schwartz,SP] |