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INTRODUCTORY CLASSICAL LOGIC ALGEBRA OF LOGIC
THE DEVELOPMENT OF FORMAL LOGIC IN ANCIENT
CRITICAL EXAMINATION OF THE LOGISTIC THEORY
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A. N. Whitehead according algebra of logic algebraical form algebraical method analysis apparent variables appear argument Aristotle arithmetic assertion axioms Begriff Boole Boole's Boutroux C. I. Lewis calculus Calculus of Classes Chap classical logic combinations concepts constituents containing Couturat defined definitions denotes Descartes elementary propositions elements endeavour equation equivalent existence expression fact false follows formal logic Frege further geometry H. G. Zeuthen Ibid identity ideography implies important indefinables indicated individuals inference instance introduced Jevons Leibniz Leipzig logical constants logicians Logik Logique logistics mathematics Mathematik means ment negation objects operations Paris Peano philosophy Plato possible postulates Prantl predicate premises primitive ideas Principia problems proof propositional function proved question regarded relation rules Russell syllogism symbolic logic theorem theory of deduction things thought tion true proposition truth universal values Venn Whitehead words