Significance of Four pramanas
The concept of Four pramanas in Nyaya philosophy refers to the four accepted means of obtaining knowledge, as defended by Udayana. He argues against opponents who either propose additional means or dismiss their necessity. Udayana establishes that only these four recognized means of knowledge are valid within the Nyaya system, emphasizing it as the most logical and accepted count of knowledge acquisition according to Nyaya philosophy.
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Hindu concept of 'Four pramanas'
The Four pramanas in Hinduism, as defined by Nyaya philosophy, are the four acknowledged means of acquiring knowledge, defended by Udayana as essential and sufficient, countering any proposals for additional methods.
From: Nyayakusumanjali of Udayana (study)
(1) The most logical and accepted number of means of knowledge according to Nyaya philosophy.[1] (2) The four accepted means of obtaining knowledge in Nyaya philosophy, which Udayana defends against opponents who propose additional means or reject their necessity.[2] (3) The position established by Udayana which states that there are only four recognized means of knowledge within the Nyaya system.[3]