18 ideas
| 15927 | Definition just needs negation, known variables, conjunction, disjunction, substitution and quantification [Weyl, by Lavine] |
| 5515 | Imaginary cases are good for revealing our beliefs, rather than the truth [Parfit] |
| 5516 | Reduction can be by identity, or constitution, or elimination [Parfit, by PG] |
| 12354 | A 'categorial' property is had by virtue of being or having an item from a category [Wedin] |
| 12358 | Substance is a principle and a kind of cause [Wedin] |
| 12346 | Form explains why some matter is of a certain kind, and that is explanatory bedrock [Wedin] |
| 3539 | Personal identity is just causally related mental states [Parfit, by Maslin] |
| 5514 | Psychologists are interested in identity as a type of person, but philosophers study numerical identity [Parfit] |
| 1393 | One of my future selves will not necessarily be me [Parfit] |
| 5521 | If my brain-halves are transplanted into two bodies, I have continuity, and don't need identity [Parfit] |
| 5522 | Over a period of time what matters is not that 'I' persist, but that I have psychological continuity [Parfit] |
| 1392 | If we split like amoeba, we would be two people, neither of them being us [Parfit] |
| 5519 | It is fine to save two dying twins by merging parts of their bodies into one, and identity is irrelevant [Parfit] |
| 5520 | If two humans are merged surgically, the new identity is a purely verbal problem [Parfit] |
| 1391 | Concern for our own lives isn't the source of belief in identity, it is the result of it [Parfit] |
| 5518 | It doesn't matter whether I exist with half my components replaced (any more than an audio system) [Parfit] |
| 9762 | We should focus less on subjects of experience, and more on the experiences themselves [Parfit] |
| 10246 | The limit of science is isomorphism of theories, with essences a matter of indifference [Weyl] |