Indian Philosophy v2.c24.s5.71

v2.c24.s5.71

⁴ If A is, then B is. If B is not, then A is not. Dharmakīrti, while agreeing that all arguments can be expressed in the affirmative or negative form, when based on likeness (sādharmya) and unlikeness (vaidharmya), thinks that some arguments fall naturally into the latter form. All objects existent here and now are perceived. The jar is not perceived. Therefore the jar is not existent here and now. This is Camestres.