You have chosen 'The Nature of Truth' by Harold Joachim, 'Structure of Scientific Revolutions (2nd ed)' by Thomas S. Kuhn and 'Substitutional Classes and Relations' by Bertrand Russell
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Existence, or select a subheading: |
| A. | Nature of Existence | |
| B. | Change in Existence | |
| C. | Structure of Existence | |
| D. | Theories of Reality | |
| E. | Categories |