Namaste, The chapter on amshitva hetu (being a composite whole as an indicator of mithyAtva) from the advaita siddhi is available here: http://www.advaitasiddhi.com/blog/pariccheda-1-amshitva-hetupapattih The siddhikAra takes up a syllogism proposed by chitsukhAchArya for analysis. Regards Venkatraghavan