Abstract

The term “deductive justification” is used either in the relative or absolute sense. In the first case, a sentence is deductively justified with respect to a class of premisses and may be more or less probable, depending on the degree of justification (eventually non-deductive) of the premisses. In the second sense, a sentence justified deductively in a language to which it belongs, is necessarily true, provided only the meaning postulated by the semantical rules of its expressions can be realized (i. e. if the denotata assigned to the expressions by the semantical rules do exist); in this second case, the statement justified deductively is analytic in the given language. Thus the explication of the latter concept of deductive justification requires an explication of the concept of an analytic statement in a language.