The Posterior Analytics (Ancient Greek: Ἀναλυτικὰ Ὕστερα; Latin: Analytica Posteriora) is a text from Aristotle's Organon that deals with demonstration, definition, and scientific knowledge.
Even where there is no fault in the form, there may be in the matter, i.e. the propositions of which it is composed, which may be true or false, probable or improbable.
When the premises are certain, true, and primary, and the conclusion formally follows from them, this is demonstration, and produces scientific knowledge of a thing.
He concludes the book with the way the human mind comes to know the basic truths or primary premises or first principles, which are not innate, because people may be ignorant of them for much of their lives.
He states that first principles are derived by induction, from the sense-perception implanting the true universals in the human mind.