You have chosen 'The Logic of Boundaryless Concepts' by Ian Rumfitt, 'A Mathematical Introduction to Logic (2nd)' by Herbert B. Enderton and 'The Principles of Mathematics' 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 |