Combining Texts

You have chosen 'An Argument for the Identity Theory' by David Lewis, 'Punctual and segmentive Hopi verbs' by Benjamin Lee Whorf and 'Axiomatic Theories of Truth (2013 ver)' by Halbach,V/Leigh,G.E.

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All the ideas for Natural Theory, or select a subheading:
      A. Speculations on Nature
      B. Natural Kinds
      C. Causation
      D. Laws of Nature