Index for POSTERIOR ANALYTICS Book 2 Part 2

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Paragraph 1	These, then, are the four kinds of question we ask, and it is in the answers to these questions that our knowledge consists.
Paragraph 2	Now when we ask whether a connexion is a fact, or whether a thing without qualification is, we are really asking whether the connexion or the thing has a 'middle';
Paragraph 3	(By distinguishing the fact of the connexion and the existence of the thing as respectively the partial and the unqualified being of the thing, I mean that if we ask 'does the moon suffer eclipse
Paragraph 4	We conclude that in all our inquiries we are asking either whether there is a 'middle' or what the 'middle' is:
Paragraph 5	Cases in which the 'middle' is sensible show that the object of our inquiry is always the 'middle':
Paragraph 6	Thus, as we maintain, to know a thing's nature is to know the reason why it is;