Sankhya Karika Verse 4
Sanskrit Verse
दृष्टमनुमानमाप्तवचनं च सर्वप्रमाणसिद्धत्वात् । त्रिविधं प्रमाणमिष्टं प्रमेयसिद्धिः प्रमाणाद्धि ॥ ४ ॥
Transliteration
dṛṣṭam-anumānam-āpta-vacanaṃ ca sarva-pramāṇa-siddhatvāt | tri-vidhaṃ pramāṇam-iṣṭaṃ prameya-siddhiḥ pramāṇāt-hi ||
Translation
Perception, Inference, and Testimony (are the Proofs ; by these) all proofs being established, Proof is intended to be threefold. From Proof verily is the estab lishment of the Provables.
Reference: Sankhya Karika

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