, ▁the ▁whole ▁process ▁was ▁circular . ▁ ▁The ▁role ▁of ▁Be h bah ani ▁ ▁Analysis ▁of ▁probability ▁Be h bah ani ▁led ▁the ▁Us uli ▁intellectual ▁challenge ▁to ▁Ak h b ari ▁domin ance ▁in ▁Kar b ala ▁in ▁the ▁ 1 7 6 0 s . ▁With ▁the ▁defeat ▁of ▁the ▁Saf avid ▁state ▁following ▁the ▁Afghan ▁invasion ▁in ▁ 1 7 2 2 ▁and ▁the ▁rise ▁of ▁a ▁new ▁generation ▁of ▁Bah ra ini ▁Ak h b ari ▁cler ics , ▁state - cent ric ▁Us ul ism ▁lost ▁its ▁self - conf idence . ▁The ▁most ▁influ ential ▁Bah ra ini ▁cler ic , ▁Y us uf ▁Al ▁Bah ran i , ▁was ▁installed ▁as ▁the ▁de an ▁of ▁scholar ship ▁in ▁Kar b ala , ▁where ▁he ▁led ▁an ▁intellectual ▁on s la ug ht ▁on ▁Us uli ▁scholar ship ▁in ▁the ▁mid - e igh teenth ▁century . ▁Be h bah ani ' s ▁role ▁in ▁the ▁ 1 7 6 0 s ▁was ▁at ▁first ▁to ▁tent atively ▁challenge ▁Al ▁Bah ran i ' s ▁ne o - A kh bar ism ▁before ▁building ▁up ▁the ▁supp or ters , ▁confidence ▁( and ▁financial ▁support ) ▁to ▁eventually ▁lead ▁an ▁Us uli ▁rev ival ▁following ▁Al ▁Bah ran i ' s ▁death ▁in ▁ 1 7 7 2 . ▁▁▁▁▁ ▁Be h bah ani ' s ▁main ▁contribution ▁to ▁legal ▁theory ▁was ▁the ▁analysis ▁of ▁probability . ▁ ▁Gr anted ▁that ▁general ▁principles ▁cannot ▁be