Combining Texts

You have chosen 'Philosophical Essay on Probability' by Pierre Simon de Laplace, 'On the True Doctrine (Against Christians)' by Celsus and 'Inference to the Best Explanation (2nd)' by Peter Lipton

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All the ideas for Mathematics, or select a subheading:
      A. Nature of Mathematics
      B. Foundations for Mathematics
      C. Sources of Mathematics