What is "prasangika"

is a subschool of Madhyamaka, which asserts that all concrete and mental phenomena, although existing conventionally, are empty of any type of inherent identity or self-characterizing essence. The name is derived from , a method of logical inquiry of reductio ad absurdum; they point out implicit errors by taking reasonings to logical extremes. Nagarjuna and later commentators such Buddhapālita, Candrakīrti, and Je Tsongkhapa use this method to refute essentialist views.