After tosfos gives his pshat that rav dimi is only saying bitul up until when there is 60 parts of hetar, they ask what is the chidush of rav dimi more than bitul bashishim. I don't understand, are we not talking about yayin nesech which is osur bemashehu? Don't answer that it's tosfos leshitasie regarding stam yeynam as mentioned in d'h yayin beyayin because if we were to be talking about stam yeynam how could the gemarah ask from the mishnah, the mishnah is referring to yayin nesech mamesh!?
Thank you in advance!
Simcha Reif, Manchester United Kingdom
Hello Simcha,
Excellent question.
A distinction must be made between the Halacha of Bitul of a 'Nosain Ta'am' or Issur Mashehu, and Rav Dimi's Chidush of 'Kama Kama Batil'. Rav Dimi came to be Mechadesh, that there is another type of Bitul, when forbidden wine drips into the Heter wine drop by drop, that it is possible to treat the prohibition in this way as something that is not.
Tosfos adds that even if it is said that it is possible to treat what drips as if it is not there, it does not make sense to say that if so much of the prohibition drips, it is still said to be Batel in the Heter.
Even when the Gemara asked from the Mishnah, it understood the division between 'Kama Kama Batil' and the Halacha of Bitul be'Shishim, or a Issur Mashehu, but the Gemara understood that the Mishna that says that the prohibition of Yayin Nesach be'Mashehu is even when the Issur drips into the Heter.
To this the Gemara answers, that the Issur of Yayin Nesech be'Mashehu is only when the Heter is added to the Issur, while Rav Dimi's innovation, that if the Issur drips into the Heter it is as if it does not exist, is not contrudicted from the Mishna.
To sum up, Tosfos means that even Rav Dimi's ruling 'Kama Kama Batil', is not possible if the Issur is so great that it is already felt in the Heter. But the Mishna talks about all the other cases, in which the Issur does not trickle into the Heter, but rather the Heter trickles into the Issur, or the Issur spills into the permit all at once.
Kol Tuv,
Aharon Steiner