You have chosen 'Individuals without Sortals' by M.R. Ayers, 'First-order Logic, 2nd-order, Completeness' by Marcus Rossberg and 'Attack Upon Christendom' by Sren Kierkegaard
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 |