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    The Elements of Formal Logic by G.E. Hughes Paperback Book

    • Item No : 146691170153
    • Condition : Brand New
    • Brand : No brand Info
    • Seller : the_nile
    • Current Bid : US $48.75

    • * Item Description

    • Preface 1. Establishing Validity (Theory) 4. Establishing Validity (Practice) 5. Disjunction and Disjunctive Inference 6. Material Equivalence: 'If and Only If' 7. Valid Inference and Proof 8. The Propositional Calculus 9.
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