You have chosen 'On the Syllogism IV' by Augustus De Morgan, 'Phil of Mathematics and Natural Science' by Hermann Weyl and 'Types and Ontology' by Fred Sommers
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Knowledge Sources, or select a subheading: |
| A. | A Priori Knowledge | |
| B. | Perception | |
| C. | Rationalism | |
| D. | Empiricism | |
| E. | Direct Knowledge |