Anvayavyatireki inference pattern – UGC NET Question

Anvayavyatireki anumana secures vyapti through a combination of affirmative and negative instances: cases where hetu and sadhya co-occur and cases where both are absent. This dual confirmation provides strong support for the universality of the connection. Nyaya often regards this as the most robust form of inferential support. Hence the inference described in the stem is anvayavyatireki.

Option A:
Option A, kevalanvayi, relies only on positive instances and does not require complementary negative cases.

Option B:
Option B is correct because anvaya refers to concordant presence and vyatireka to concordant absence; together they describe the two-sided evidence mentioned in the stem.

Option C:
Option C, kevalavyatireki, restricts itself to negative instances and so lacks the positive confirmations characteristic of the present pattern.

Option D:
Option D, sesavat, differentiates inference according to an effect-to-cause temporal relation and is not based on how vyapti is established.