 If truth values are accepted and taken seriously as a special kind of objects, the obvious question as to the nature of these entities arises. The above characterization of truth values as objects is far too general and requires further specification. One way of such specification is to qualify truth values as abstract objects. Note that Frege himself never used the word ‘abstract’ when describing truth values. Instead, he has a conception of so called “logical objects”, truth values being primary and the most fundamental of them (Frege 1976: 121). Among the other logical objects Frege pays particular attention to are sets and numbers, emphasizing thus their logical nature (in accordance with his logicist view).