deductive tableau

deductive tableau

(tool)

A theorem proof system consisting of a table whose rows contain assertions or goals. Variables in assertions are implicitly universally quantified and variables in goals are implicitly existentially quantified. The declarative meaning of a tableau is that if every instance of every assertion is true then some instance of at least one of the goals is true.

This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)