Traditional The Aṇuvyākhyāna is a Sanskrit work regarding Dvaita philosophy written by Madhvacharya.
It is a metacommentary on the author's own commentary on the Brahma Sutras.
The other three works on Sutras are Brahma Sutra Bhashya, Anu Bhashya, and Nyayavivarana.
[1] The Anuvyakyana is a work elucidating this commentary with scholarly and philosophical dissertations and criticisms of other schools especially the Advaita of Adi Shankara and the Vishistadvaita of Ramanuja.
[2]