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] |
| 8113 | Art is like understanding a natural language, and needs a grasp of a symbol system [Goodman, by Gardner] |
| 19376 | A machine is best defined by its final cause, which explains the roles of the parts [Leibniz] |