To illustrate
formally: C is the cause of B's inherence in D; hence C is the cause
of A's inherence in D, B of A's inherence in C, while the cause of A's
inherence in B is B itself.
19
As regards syllogism and demonstration, the definition of, and the
conditions required to produce each of them, are now clear, and with
that also the definition of, and the conditions required to produce,
demonstrative knowledge, since it is the same as demonstration. As
to the basic premisses, how they become known and what is the
developed state of knowledge of them is made clear by raising some
preliminary problems.
We have already said that scientific knowledge through demonstration
is impossible unless a man knows the primary immediate premisses.
But there are questions which might be raised in respect of the
apprehension of these immediate premisses: one might not only ask
whether it is of the same kind as the apprehension of the conclusions,
but also whether there is or is not scientific knowledge of both; or
scientific knowledge of the latter, and of the former a different kind
of knowledge; and, further, whether the developed states of
knowledge are not innate but come to be in us, or are innate but at
first unnoticed.
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