1)
WHEN DO DIFFERENT ISURIM JOIN? (Yerushalmi Orlah Perek 2 Halachah 5 Daf 13b)
îúðé' úáìéï ùðéí ùìùä ùîåú îîéï àçã àå îùìùä àñåø åîöèøôéï.
(a)
(Mishnah): Spices of two or three Shemos (Isurim), from one species or from three species, forbid and join;
øáé ùîòåï àåîø ùðéí àå ùìùä ùîåú îîéï àçã àå ùðé îéðéï îùí àçã àéï îöèøôéï:
(b)
R. Shimon says, two or three Shemos from one species or from two species or from three species do not join.
âî' ðéçà ùðé ùîåú îîéï àçã ùðé îéðéï îùí àçã.
(c)
(Gemara) Question: Granted, two Shemos from one species [join. Why do] two species from one Shem [join? Different species do not strengthen each other, rather, they are Mevatel each other!]