Tattvacintāmaṇi
Tattvacintāmaṇi is a treatise in Sanskrit authored by 12th-century CE Indian logician and philosopher Gangesa Upadhyaya also known as Gangesvara Upadhyaya. The title may be translated into English as “A Thought-jewel of Truth.” The treatise is also known as Pramāṇa-cintāmaṇi (“A Thought-jewel of Valid Knowledge”). The treatise introduced a new era in the history of Indian logic.
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