You have chosen 'Intensional Logic' by Melvin Fitting, 'Letters to De Vries' by Baruch de Spinoza and 'Letter to Frege 29.12.1899' by David Hilbert
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 |