Shabbos 93 – שבת צג

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Today’s Daf Yomi Question:

How can all four legs of the animal be exempt from tuma if three of them are needed to support his weight?

The Gemara (by the weaver’s reed) mentions a shiur of Kedei Mapa; why is the shiur not based on the melacha of meisech itself – which (presumably) is melo hasit kaful?

 

Shabbos 93 – שבת צג

How can all four legs of the animal be exempt from tuma if three of them are needed to support his weight?

The Gemara (by the weaver’s reed) mentions a shiur of Kedei Mapa; why is the shiur not based on the melacha of meisech itself – which (presumably) is melo hasit kaful?

Shabbos 106 – שבת קו

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Today’s Daf Yomi Question:

Rebbi Shimon provides a source for Chovel and Mavir from Milah and Bas Kohen.  Why can’t we suffice simply due to the fact that they were melachos used in the Mishkan?

 

Shabbos 107 – שבת קז

We see that Rebbi Yehuda deems the skin of those four sheratzim thick enough to be viewed as hide; although he actually adds a fifth one to the list.  Why does this not indicate to us that (according to the Rabanan as well)  these four are considered to have proper hides and not the others – also with regard to Shabbos?

Shabbos 107 – שבת קז

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Today’s Daf Yomi Question:

We see that Rebbi Yehuda deems the skin of those four sheratzim thick enough to be viewed as hide; although he actually adds a fifth one to the list.  Why does this not indicate to us that (according to the Rabanan as well)  these four are considered to have proper hides and not the others – also with regard to Shabbos?

 

Eruvin 39 – עירובין לט

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Today’s Daf Yomi Question:

The Gemara says the halacha of ‘Beitza’ is considered a greater chiddush since it can lead to a Melacha.  But isn’t likewise the issur of separating Teruma also based on a concern that it may lead to fixing a keli – which is a Melacha?

In the case of Terumah, why does he need to add ‘Ein bidevorai kelum’?

Eruvin 39 – עירובין לט

The Gemara says the halacha of ‘Beitza’ is considered a greater chiddush since it can lead to a Melacha.  But isn’t likewise the issur of separating Teruma also based on a concern that it may lead to fixing a keli – which is a Melacha?

In the case of Terumah, why does he need to add ‘Ein bidevorai kelum’?

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