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establishing validity in cognition is discussed at some length 120 XLV (438-456} The intrinsic nature of invalidity and the extrinsic nature of validity are established 123 XLVI (457-459) The cognition of Time by witness con· sciousness is explained 129 XLVII (460-462) The cognition of Space by witness consciousness is explained 130 XL VIII (463-470) The difference between paramiitman and other objects is stated in some detail 131 XLIX (471-477) The category of vis•e!ia and its functions discussed . 134 L {4 78-486} The siddhii.ntin defends the probans urged by him to establish the reality of the universe 136 LI (487, 488) The difference between the liberated and the Atman is urged as absolutely real 139 LII (489-527) The criticism by the Advaitin is answered . 14-2 LIII (528·530) The siddhantin concludes the work with two counter-inferences rediculing the Advaitin's position . 153
