ABSTRACT
THE problem presented by induction is that on the one hand no justification of the process of forming generalisations seems to be possible, while on the other it seems irrational to trust them in the absence of all guarantee that they will continue to hold. The problems presented by the method of hypothesis are (i) that likewise there seems to be no explanation of its success, yet it continues to give satisfactory service, and (ii) that non-instantial statements of hypotheses do not by themselves state anything about anything, and yet they can be used. Traditional treatment of induction and hypothesis asserted an 'inner necessity' to account for their 'truth', an assertion that cannot be tested; Logical Positivism has claimed that there is no problem of induction and Operationalism that there is no problem of non-instantial concepts, which is evading the issue.
