tadatrāpyanyathābhāve dhīr yadvā duṣṭakāraṇe tāvatā caiva mithyātvaṃ gṛhyate nānyahetukam
Only when there arises either a cognition of [something] being otherwise, or a cognition of [its] cause being defective, is falsity apprehended - [and] not due to any other reason