You have chosen 'Axiomatic Theories of Truth (2005 ver)' by Volker Halbach, 'Completeness of Axioms of Logic' by Kurt Gdel and 'An Inquiry into Meaning and Truth' by Bertrand Russell
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Natural Theory, or select a subheading: |
| A. | Speculations on Nature | |
| B. | Natural Kinds | |
| C. | Causation | |
| D. | Laws of Nature |