Editing Sum of Logic (section)

==References==
* ''Ockham's Theory of Terms'' : Part I of the ''Summa Logicae'', translated and introduced by Michael J. Loux, University of Notre Dame Press, Notre Dame, IN, 1974.  Reprinted, St. Augustine's Press, South Bend, IN, 1998.
* ''Ockham's Theory of Propositions'' : Part II of the ''Summa Logicae'', translated by Alfred J. Freddoso and Henry Schuurman and introduced by Alfred J. Freddoso, University of Notre Dame Press, Notre Dame, IN, 1980.  Reprinted, St. Augustine's Press, South Bend, IN, 1998.
* Longeway, John Lee (2007), ''Demonstration and Scientific Knowledge in William of Ockham'', University of Notre Dame Press, Notre Dame, IN.  A translation of ''Summa Logicae III-II : De Syllogismo Demonstrativo'', with selections from the ''Prologue'' to the ''Ordinatio''.
* [[Philotheus Boehner|Boehner, P.]] (1952), ''Medieval Logic'', Manchester University Press.