prone

adj 1: lying face downward [syn: {prostrate}]

2: having a tendency (to); often used in combination; "a child

prone to mischief"; "failure-prone"

Probe

An {object-oriented} {logic language} based on {ObjVlisp}.

["Proposition d'une Extension Objet Minimale pour Prolog",

Actes du Sem Prog en Logique, Tregastel (May 1987),

pp. 483-506].