Shabbos 73 – שבת עג

Why does the Mishna use the term ‘forty minus one’ and not simply thirty nine?

Why does the Mishna use the term ‘motzi mershus lershus’ which seems to include both ways of carrying (public domain/private domain) since carrying into reshus hayachid is merely a Tolada and our Mishna is apparently listing Avos?

Shabbos 74 – שבת עד

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Today’s Daf Yomi Question:

The Gemara relates how Rav Bibi emptied the entire content of the basket before them (causing everything to separate from each other,, Rashi) perhaps in order to avoid Borer  Why is this in itself not an act of Borer?