You have chosen 'The Sign of Four' by Arthur Conan Doyle, 'An Axiomatization of Set Theory' by John von Neumann and 'Boole calculus and the Concept script' 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 |