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[13] The reference is made to the Post Analyt I II and it is

impossible to understand the account of [Greek: epistaemae]

without a perusal of the chapter, the additions to the definition

referred to relate to the nature of the premisses from which

[Greek: epistaemae] draws its conclusions they are to be "true,

first principles incapable of any syllogistic proof, better known

than the conclusion, prior to it, and causes of it." (See the

appendix to this Book.)

[14] This is the test of correct logical division, that the

_membra dividentia shall be opposed, i.e._ not included the one

by the other.