You have chosen 'Groundwork of the Metaphysic of Morals' by Immanuel Kant, 'Conceptual truth and metaphysical necessity' by Robert C. Stalnaker and 'Letters to Regius' by Ren Descartes
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Mathematics, or select a subheading: |
| A. | Nature of Mathematics | |
| B. | Foundations for Mathematics | |
| C. | Sources of Mathematics |