Questions of two kinds are thus created. In the first place there are those which concern the relations of (a)> (b) and (c), e.g. the questions whether the relation of denotation and con notation is inverse, and whether proper names have any connotation. On such points there is much learning and some disagreement. In the second place there are questions of the nature of (a), (b) and (V). About (a) and (b) there is more or less general agreement, but about (c) there is an unbroken record of controversy from the earliest times to the present day.