display all the ideas for this combination of texts
3 ideas
9018 | A physical object is the four-dimensional material content of a portion of space-time [Quine] |
8489 | The concept 'object' is too simple for analysis; unlike a function, it is an expression with no empty place [Frege] |
9019 | Four-d objects helps predication of what no longer exists, and quantification over items from different times [Quine] |