You have chosen 'Identity in Substances and True Propositions' by Gottfried Leibniz, 'Set Theory and related topics (2nd ed)' by Seymour Lipschutz and 'Natural Kinds' by Willard Quine
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 |