19256 | Our research always hopes that reality embodies the logic we are employing [Peirce] |
12444 | Logic is concerned with the real world just as truly as zoology [Russell] |
10057 | Logic can only assert hypothetical existence [Russell] |
14464 | Logic can be known a priori, without study of the actual world [Russell] |
14167 | The only classes are things, predicates and relations [Russell] |
18162 | The propositions of logic are analytic tautologies [Wittgenstein] |
12219 | Whether a modal claim is true depends on how the object is described [Quine, by Fine,K] |
18962 | Unfashionably, I think logic has an empirical foundation [Putnam] |
11970 | Logicians like their entities to exhibit a maximum degree of purity [Kaplan] |
12766 | Logical space is abstracted from the actual world [Stalnaker] |
12341 | Logic is a mathematical account of a universe of relations [Badiou] |
10829 | A sentence can't be a truth of logic if it asserts the existence of certain sets [Boolos] |
10454 | In first-order we can't just assert existence, and it is very hard to deny something's existence [Bach] |
10253 | Either logic determines objects, or objects determine logic, or they are separate [Shapiro] |
14943 | Maybe mathematical logic rests on information-processing [Ladyman/Ross] |
15652 | We can use truth instead of ontologically loaded second-order comprehension assumptions about properties [Halbach] |