You have chosen 'On the Principles of Indiscernibles' by Gottfried Leibniz, 'Tonk, Plonk and Plink' by Nuel D. Belnap and 'A Specimen of Discoveries' by Gottfried Leibniz
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Thought, or select a subheading: |
| A. | Modes of Thought | |
| B. | Mechanics of Thought | |
| C. | Content | |
| D. | Concepts | |
| E. | Abstraction |