Originally published in HUCA 42 (1971): 185-96. Republ. in L. Jacobs. Rabbinic thought in the Talmud. London; Portland, OR: Vallentine Mitchell, 2005: 42-54. Every student of the Babylonian Talmud is aware that not infrequently in this work a ruling is given by an amora and the very same ruling is then quoted from a baraita…