display all the ideas for this combination of texts
2 ideas
18396 | The set theory brackets { } assert that the member is a unit [Armstrong] |
Full Idea: The idea is that braces { } attribute to an entity the place-holding, or perhaps determinable, property of unithood. | |
From: David M. Armstrong (Truth and Truthmakers [2004], 09.5) | |
A reaction:
I like this. There is Socrates himself, then there is my concept |
18393 | For 'there is a class with no members' we don't need the null set as truthmaker [Armstrong] |
Full Idea:
The null class is useful in formal set theory, but I hope that does not require that there be a thing called the null class which is truthmaker for the strange proposition |
|
From: David M. Armstrong (Truth and Truthmakers [2004], 09.1) | |
A reaction: It is not quite clear why it doesn't, but then it is not quite clear to philosophers what the status of the null set is, in comparison with sets that have members. |