After listening to your shiur, I have been going over the tshuva of the Tzitz Eliezer and even after a number of readings, it is unclear to me exact what his "bottom line" is. As far as I can follow, his major line of argument is the "study for the purpose of kiyyum hamitzvot" instrumentalist approach. I presume you are taking this to mean that if pursuit of this objective, "anything goes", i.e. both Torah Shebektav and Torah Shebeal- peh? But still, this would rule out learning Sandhedrin, Zevachim, etc., no? Sincerely David Kessler Dept. of Physics Bar-Ilan Univ.