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  1.  28
    A Note on Wittgenstein's Truth-Function-Generating Operation in Tractatus 6.L. H. Hackstaff - 1966 - Mind 75:255.
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  2.  44
    A study in many-valued logic.L. H. Hackstaff & Józef M. Bocheński - 1962 - Studies in East European Thought 2 (1):37-48.
  3.  12
    A Study in Many-Valued Logic.L. H. Hackstaff & J. M. Bocheński - 1962 - Studies in Soviet Thought 2 (1):37-48.
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  4.  12
    Systems of formal logic.L. H. Hackstaff - 1967 - Dordrecht,: D. Reidel.
    CHAPTER INTRODUCTION: SOME CONCEPTS AND DEFINITIONS Arguments and Argument Forms Argumentation takes place whenever reasons are offered to support some ...
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