Combining Texts

You have chosen 'The Evolution of Logic' by William D. Hart, 'Metaphysical Foundations of Mathematics' by Gottfried Leibniz and 'Principles of Theoretical Logic' by Hilbert,D/Ackermann,W

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All the ideas for Metaethics, or select a subheading:
      A. Ethics Foundations
      B. Value
      C. The Good