You have chosen 'Phenomenalism' by A.J. Ayer, 'Completeness of Axioms of Logic' by Kurt Gdel and 'On Sense and Reference' by Gottlob Frege
start again | choose another area for these texts | all the ideas for this combination of textsAll the ideas for Natural Theory, or select a subheading: |
A. | Speculations on Nature | |
B. | Natural Kinds | |
C. | Causation | |
D. | Laws of Nature |