  Immediately Tarski makes it clear that he is also not concerned with developing a normative proposal, but an account which captures a certain common use of the concept of logical notion: “in answering the question ‘What are logical notions?’ what I shall do is make a suggestion or proposal about a possible use of the term ‘logical notion’. This suggestion seems to me to be in agreement, if not with a prevailing usage of the term ‘logical notion’, at least with one usage which actually is encountered in practice” (Tarski 1986a, p. 145). 