Combining Texts

You have chosen 'Sources of Knowledge of Mathematics' by Gottlob Frege, 'Modality' by Joseph Melia and 'The Beautiful in Music' by Eduard Hanslick

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All the ideas for Theory of Logic, or select a subheading:
      A. Overview of Logic
      B. Logical Consequence
      C. Ontology of Logic
      D. Assumptions for Logic
      E. Structures of Logic
      F. Referring in Logic
      G. Quantification
      H. Proof Systems
      I. Semantics of Logic
      J. Model Theory in Logic
      K. Features of Logics
      L. Paradox