Combining Texts

All the ideas for 'Ethics: Inventing Right and Wrong', 'Quaestiones de Potentia Dei' and 'Russell'

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4 ideas

6. Mathematics / C. Sources of Mathematics / 6. Logicism / a. Early logicism

6408	Russell needed three extra axioms to reduce maths to logic: infinity, choice and reducibility [Grayling]

9. Objects / B. Unity of Objects / 1. Unifying an Object / b. Unifying aggregates

17555

'One' can mean undivided and not a multitude, or it can add measurement, giving number [Aquinas]

12. Knowledge Sources / A. A Priori Knowledge / 2. Self-Evidence

6414	Two propositions might seem self-evident, but contradict one another [Grayling]

22. Metaethics / A. Ethics Foundations / 1. Nature of Ethics / f. Ethical non-cognitivism

4761	The 'error theory' of morals says there is no moral knowledge, because there are no moral facts [Mackie, by Engel]