It is mentioned as a pre-requisite for inference or step to decide logically. [[Trividha Roga Vishesha Vijnaniya Vimana#Three methods for knowledge of disease|(Cha. Vi.4/4)]] | It is mentioned as a pre-requisite for inference or step to decide logically. [[Trividha Roga Vishesha Vijnaniya Vimana#Three methods for knowledge of disease|(Cha. Vi.4/4)]] |