Presumption of fact Meaning, Definition & Usage

Definitions
  1. (Law), an argument of a fact from a fact; an inference as to the existence of one fact not certainly known, from the existence of some other fact known or proved, founded on a previous experience of their connection; supposition of the truth or real existence of something, without direct or positive proof of the fact, but grounded on circumstantial or probable evidence which entitles it to belief. Burrill. Best. Wharton.

Webster 1913