You have chosen 'From an Ontological Point of View' by John Heil, 'Elucidation of some points in E.Schrder' by Gottlob Frege and 'On the Algebra of Logic' by Charles Sanders Peirce
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 |