Illative /(?)/

Il·la·tive

Illative

a.
  1. Relating to, dependent on, or denoting, illation; inferential; conclusive; as, an illative consequence or proposition; an illative word, as then, therefore, etc.

Phrases & Compounds
Illative conversion
a converse or reverse statement of a proposition which in that form must be true because the original proposition is true.
Illative sense
the faculty of the mind by which it apprehends the conditions and determines upon the correctness of inferences.

Illative

n.
  1. An illative particle, as for, because.