Combining Texts

All the ideas for 'Reference and Generality (3rd ed)', 'Notes on Logic' and 'Moral Dilemmas Revisited'

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8 ideas

6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / d. Counting via concepts
Are 'word token' and 'word type' different sorts of countable objects, or two ways of counting? [Geach, by Perry]
7. Existence / D. Theories of Reality / 8. Facts / d. Negative facts
Facts can be both positive and negative [Wittgenstein, by Potter]
9. Objects / A. Existence of Objects / 6. Nihilism about Objects
We should abandon absolute identity, confining it to within some category [Geach, by Hawthorne]
9. Objects / F. Identity among Objects / 3. Relative Identity
Denial of absolute identity has drastic implications for logic, semantics and set theory [Wasserman on Geach]
Identity is relative. One must not say things are 'the same', but 'the same A as' [Geach]
9. Objects / F. Identity among Objects / 8. Leibniz's Law
Leibniz's Law is incomplete, since it includes a non-relativized identity predicate [Geach, by Wasserman]
20. Action / C. Motives for Action / 5. Action Dilemmas / a. Dilemmas
There is no restitution after a dilemma, if it only involved the agent, or just needed an explanation [Foot, by PG]
I can't understand how someone can be necessarily wrong whatever he does [Foot]