12 ideas
17813 | Löwenheim-Skolem says any theory with a true interpretation has a model in the natural numbers [White,NP] |
17812 | Finite cardinalities don't need numbers as objects; numerical quantifiers will do [White,NP] |
16014 | It is controversial whether only 'numerical identity' allows two things to be counted as one [Noonan] |
16024 | I could have died at five, but the summation of my adult stages could not [Noonan] |
16023 | Stage theorists accept four-dimensionalism, but call each stage a whole object [Noonan] |
16016 | Identity definitions (such as self-identity, or the smallest equivalence relation) are usually circular [Noonan] |
16017 | Identity is usually defined as the equivalence relation satisfying Leibniz's Law [Noonan] |
16015 | Problems about identity can't even be formulated without the concept of identity [Noonan] |
16020 | Identity can only be characterised in a second-order language [Noonan] |
16019 | Leibniz's Law must be kept separate from the substitutivity principle [Noonan] |
16018 | Indiscernibility is basic to our understanding of identity and distinctness [Noonan] |
8875 | Sense experiences must have conceptual content, since they are possible reasons for judgements [Brewer,B] |