Full Idea
That which is as being true (and that which is not as being false) have to do with composition and division, ... (for truth involves assertion in the case of combination and denial in the case of a separation).
Gist of Idea
Truth is a matter of asserting correct combinations and separations
Source
Aristotle (Metaphysics [c.324 BCE], 1027b22)
Book Reference
Aristotle: 'Metaphysics', ed/tr. Lawson-Tancred,Hugh [Penguin 1998], p.163
A Reaction
This remark has the prospect of being spelled out precisely in terms of predication in modern logic