You have chosen 'Investigations in the Foundations of Set Theory I' by Ernst Zermelo, 'Letters to Wagner' by Gottfried Leibniz and 'Nominalism and Substitutional Quantifiers' by Ruth Barcan Marcus
start again | choose another area for these texts | all the ideas for this combination of textsAll the ideas for Modality, or select a subheading: |
A. | Necessity | |
B. | Possibility | |
C. | Sources of Modality | |
D. | Knowledge of Modality | |
E. | Possible worlds |