4 ideas
19043 | Bivalence applies not just to sentences, but that general terms are true or false of each object [Quine] |
19042 | Terms learned by ostension tend to be vague, because that must be quick and unrefined [Quine] |
13083 | The essence is the necessary properties, and the concept includes what is contingent [Leibniz] |
2594 | A true cause must involve a necessary connection between cause and effect [Malebranche] |