Syllogistic \Syl`lo*gis"tic\, Syllogistical \Syl`lo*gis"tic*al\,
a. [L. syllogisticus, Gr. ?: cf. F. syllogistique.]
Of or pertaining to a syllogism; consisting of a syllogism,
or of the form of reasoning by syllogisms; as, syllogistic
arguments or reasoning.
[1913 Webster]