A posteriori Truth, 232.
A priori Truth, 231.
'A' Propositions, 260. conversion of, 489.
Arguing in a circle, 882.
Argumentum ad hominem, etc., 867.
Art, 20.
Attribute, 81 sqq.
Essential and non-essential, 320.
Attributives, 88 sqq.
Basis of Division, 391.
Categorematic words, 71.