Sarvadarshanasangraha 10.22

10.22

dvitvatvapramitis tato nu parato dvitvapramānantaraṃ

There is here first the contact of the organ of sense with the object; thence there arises the knowledge of the genus unity; then the distinguishing perception apekṣābuddhi [by which we apprehend "this is one," "this is one," &c.]; then the production of duality, dvitva (in the object);[22] then the knowledge of the abstract genus of duality (dvitvatva); then the knowledge of the quality duality as it exists in the two things; then imagination[23] (saṃskāra).[24]