You have chosen 'Three Grades of Modal Involvement' by Willard Quine, 'The Barcan Formula and Metaphysics' by Ori Simchen and 'Commentary on the Metaphysics' by Avicenna (Abu Ibn Sina)
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 |