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12th-Century 'Tarka-Siddhi-Manjari' Manuscript Discovered in a Private Patan Archive Reshapes Medieval Theories of Probabilistic Logic

📅 April 4, 2026 📰 The Global Scholar
12th-Century 'Tarka-Siddhi-Manjari' Manuscript Discovered in a Private Patan Archive Reshapes Medieval Theories of Probabilistic Logic

Scholars cataloging a private library in Patan, Gujarat, have discovered a previously unknown manuscript titled 'Tarka-Siddhi-Manjari'. Dated to the 12th century, this text challenges the traditional view that medieval Indian logic was purely deductive, introducing complex theories of probabilistic reasoning and uncertainty.

The author, a scholar identified only as Jnanapala, argues that human knowledge is rarely absolute and that the 'Yukti' (reasoning) must account for varying degrees of certainty. This nuanced approach to epistemology suggests that medieval thinkers were grappling with the limits of formal logic long before modern developments in the field, marking a significant shift in our understanding of medieval Vedic dialectics.

Original source: The Global Scholar