4 ideas
18431 | Internal relations combine some tropes into a nucleus, which bears the non-essential tropes [Simons, by Edwards] |
10558 | Abstract objects are actually constituted by the properties by which we conceive them [Zalta] |
19392 | I don't recommend universal doubt; we constantly seek reasons for things which are indubitable [Leibniz] |
10557 | Abstract objects are captured by second-order modal logic, plus 'encoding' formulas [Zalta] |