the Talmud and not in Rabbi's teaching. This generalization agrees with the opinion of R. Shimon Ben Elazar in the Tosefta. He still calls the" Shevut" Prohibitions by their earlier name" An act, which, when done intentionally is not punished by' kareth' and when done unintentionally does not oblige a sin offering".

5. Blowing the shofar on the Sabbath- According to Rav Yosef in the Bavli this is a rabbinic" Shevut" Prohibition. A more thorough investigation, both in the Tannaitic and the Amoraic literature shows that there were those who held that this is a Torah Prohibition. On the other hand, it would seem that some held that there was no prohibition of blowing the shofar during the Sabbath or Yom- tov. Except for Rav Yosef we find no explict sources which hold that we are dealing with a rabbinic Prohibition. Among the Rishonim and Acharonim in the post- Talmudic period it is evident that there is a doubt as to whether blowing the shofar on the Sabbath is intrinsically prohibited or whether it is prohibited because of the possibilty of transgressing another Prohibition. A new resolution of the doubt is suggested by the Acharonim terming it a Rabbinic Melacha.

6. Rolling out of bread dough- In this case, we also find sources who it would seem, differ. There are those who permitted it without reservation on the Sabbath and Yom- tov. There were those who struggled with how to permit pasting the dough in the oven to roll it out, so as to avoid a Prohibition punishable by stoning. There were those that permitted this with a" Shinui". Amongst the Rishonim we find a difference of opinion between the Ramban who held that rolling out dough is a" Shevut" Prohibition and the Ran who held that this is not included in the" Shevut" Prohibitions, but belongs to the category of" Ovadin De'chol". A group of acts that by definition are permitted on the Sabbath and Yom- tov, but require that when performed they should be done with a" Shinui". Here in the Ran we find for the first

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