Mishna in Shabat. יציאות השבת שתיים שהן ארבע בפנים ושתיים שהן ארבע בחוץ
Bringing in from a public domain on Shabat is one kind of work. Bringing out to a public domain is another. Are these two separate things or or they both just one kind of work?
To Tosphot they are both just one kind of "av melacha" [principle kind of work. lit. father of work.]
To the Baal Hameor (Rav Zarahia Halevi) taking out is an "av" (father, principle). Taking in is a tolada [offspring].
The Ball HaMeor goes into this in the beginning of Shabat and Rav Moshe Margolit (the author of the Pnei Moshe and Mareh Panim on the Jerusalem Talmud) goes into more detail.
The way he see it is that this is an argument between Rav Ashi and Rava. The Gemara asks on the Mishna. It says taking out and then talks about bringing in? Rav Ashi says the author of the Mishna is calling bringing in also taking out. Rava said it means domains of Shabat.
To Moshe Margolit, Rava holds bringing in is a tolada and there are two verses. To Rav Ashi they are both the same av and there is only one verse.
To me the question here seems to be the beginning of the Gemara in Bava Kama which says that something that is in the Mishkan and also important is a av. [It says nothing about whether there is a verse or not. ] That seems to be the main question here. But there are others that I forgot about. [I recall that when I was learning Shabat that that particular Tosphot in the beginning of Shabat had other questions.
Bringing in from a public domain on Shabat is one kind of work. Bringing out to a public domain is another. Are these two separate things or or they both just one kind of work?
To Tosphot they are both just one kind of "av melacha" [principle kind of work. lit. father of work.]
To the Baal Hameor (Rav Zarahia Halevi) taking out is an "av" (father, principle). Taking in is a tolada [offspring].
The Ball HaMeor goes into this in the beginning of Shabat and Rav Moshe Margolit (the author of the Pnei Moshe and Mareh Panim on the Jerusalem Talmud) goes into more detail.
The way he see it is that this is an argument between Rav Ashi and Rava. The Gemara asks on the Mishna. It says taking out and then talks about bringing in? Rav Ashi says the author of the Mishna is calling bringing in also taking out. Rava said it means domains of Shabat.
To Moshe Margolit, Rava holds bringing in is a tolada and there are two verses. To Rav Ashi they are both the same av and there is only one verse.
To me the question here seems to be the beginning of the Gemara in Bava Kama which says that something that is in the Mishkan and also important is a av. [It says nothing about whether there is a verse or not. ] That seems to be the main question here. But there are others that I forgot about. [I recall that when I was learning Shabat that that particular Tosphot in the beginning of Shabat had other questions.