To establish a fact or hypothesis as true by satisfactory and sufficient evidence . To present a claim or demand against a bankrupt or insolvent estate, and establish by evidence or affidavit that the same is correct and due, for the purpose of receiving a dividend on it Tibbetts v. Trafton, 80 Me. 264, 14 Atl. 71; In re California Pac. R. Co., BL.LAW DICT.(2D ED.)