Combining Texts

You have chosen 'reports' by Pyrrho, 'The Concept of Truth for Formalized Languages' by Alfred Tarski and 'What is the Source of Knowledge of Modal Truths?' by E.J. Lowe

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All the ideas for Formal Logic, or select a subheading:
      A. Syllogistic Logic
      B. Propositional Logic PL
      C. Predicate Calculus PC
      D. Modal Logic ML
      E. Nonclassical Logics
      F. Set Theory ST
      G. Formal Mereology