I have now here added in brackets the words 'or strict disproof to the text (a) because they are clearly implied by what is said immediately before ('no conclusive disproof of a theory can ever be produced'), and (b) because I have been constantly misinterpreted as upholding a criterion (and moreover one of meaning rather than of demarcation) based upon a doctrine of 'complete' or 'conclusive' falsifiability.