of all things other than wise.

134. Every privative attributive has, or may have, a corresponding
abstract term, and the same is the case with negatives: for the
absence of an attribute, is itself an attribute. Corresponding to
'empty,' there is 'emptiness'; corresponding to 'not-full' there may
be imagined the term 'not-fulness.'

135. The contrary of a given term always involves the contradictory,
but it involves positive elements as well. Thus 'black' is
'not-white,' but it is something more besides. Terms which, without
being directly contrary, involve a latent contradiction, are called
Repugnant, e.g. 'red' and 'blue.' All terms whatever which signify
attributes that exclude one another may be called Incompatible.

136. The preceding division is based on what is known as the Quality
of terms, a positive term being said to differ in quality from a
non-positive one.



_Univocal and Equivocal Terms_.


137. A term is said to be Univocal, when it has one and the same
meaning wherever it occurs. A term which has more than one meaning is
called Equivocal. 'Jam-pot,' 'hydrogen' are examples of univocal
terms; 'pipe' and 'suit' of equivocal.

138. This division does not properly come within the scope of logic,