You have chosen 'Isagoge ('Introduction')' by Porphyry, 'On boundary numbers and domains of sets' by Ernst Zermelo and 'A General Principle to Explain Laws of Nature' by Gottfried Leibniz
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Reason, or select a subheading: |
| A. | Nature of Reason | |
| B. | Laws of Thought | |
| C. | Styles of Reason | |
| D. | Definition | |
| E. | Argument | |
| F. | Fallacies |