Reply To: Abbaye vs. Rava and Rav vs. R' Yochanan

“Why is it a Kasha?”

The kashya is that Tosafos claims that reshus/chov and semicha cannot be taluy zeh bazeh because if they were it would come out that R’ Yochanan holds chov and we would pasken like R’ Yochanan over Rav, yet in reality we do pasken that it’s reshus. But if Rava holds that it’s a reshus then we would pasken that it’s a reshus even if R’ Yochanan held that it’s a chov, so Tosafos’s premise seems to be problematic.