Primary Principles,for Aristotle, are the foundations of, and Prior to, all
empirical and rational Knowledge; this does hold about all ideas and
judgments too. This means that the knowledge,as a whole,is grounded on
these principles; and, therefor,that is taken for granted,by Aristotle, that
these are unprovables and self-evidents. Among these Principles, the
Principle of non-contrudiction is prior to all, and prime principle, so that
every meaningful,and a sound bank argumentation, and in general,every
meaningful speech,and evena declaration of one word which has a definite
meaning is founded on this principle. According to Aristotle while this
principle is not innateone,we can not acquire it from demonstration,and it
is, in this sense,an unacquirable principle; but this does not mean that it is
absolutely so.
We can (and must) acquire it only from sensation and Nous (intellectual
intuition). This paper undertakes indicating the wayin which the principle
of non-contrudiction is acquired from sensation and Nous.