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Udayanacharya (flourished 10th century, near Darbhanga, modern Bihar state, India) was a Hindu logician who attempted to reconcile the views held by the two major schools of logic that were the sources of the Navya Nyaya (“New Nyaya”) school of “right” reasoning, which is still recognized and followed in some regions of India. Of the two schools, the original Nyaya system was concerned with the critical examination of the objects of knowledge by means of...