Research index·Book chapterAppendixMorag1 Jan 1973DOI10.1163/9789004661202_005Book chapterAppendixMorag · 1973 · SubscriptionDOI10.1163/9789004661202_005ReadRead at the publisherSaveCiteAdd to literature reviewPaywalledThe full text is at the publisherOpen it at the publisher to read it.Read at the publisherDiscussionAdd to the discussionTopicsMathematicsPhilosophyRelated papersMoreDetailsPublished, issueSuggest a correction or report