Chullin 55 - June 24, 9 Tamuz

Pictures Rava raises several difficulties against Rav Nachman's position that the term "until" implies up to but not including the final value. However, it concludes that the exact meaning depends on the specific context as one must always rule stringently with requisite amounts (shiurim), with the sole exception of a single requisite amount regarding the laws of niddah. Regarding some of the cases enumerated as kosher in the Mishna (if the spleen and kidneys are removed, or the lungs shrivel up out of fear), the Sages qualify and restrict the specific parameters under which the animal is permitted. Rabbi Meir and the Sages disagree regarding a skinned animal (geludah), where the skin has been entirely removed. Rabbi Shimon ben Elazar notes, however, that Rabbi Meir ultimately retracted his position and conceded to the view of the Sages.