Why don;t we make a kal vechomer that surely pesach where you have to eat matzah and u don't sit in a sukkah, yet you have to eat matzah...surely sukkos where u have to sit in a sukkah u should have to eat matzah!?!?!
levi, brooklyn ny
There are many possible Pirchos to your Kal vaChomer, which show that Pesach is more Chamur than Sukos. For example, Chametz is Asur on Pesach but not on Sukos, so, too, we are required to eat Matzah only on Pesach (and we cannot learn an Onesh for eating Chametz on Sukos from the same Kal va'Chomer, since Ein Onshin Min ha'Din).
Actually, the Gemara links Sukos to Pesach with a Gezeirah Shavah (Shabbos 131b). If so, even a Pircha should not stop us from applying the laws of Pesach to Sukos. Why then is there no Mitzvah of Matzah on Sukos (or sitting in a Sukah on Pesach)?
The Toras Kohanim (Emor, Perek 11:2) indeed learns from the word "ha'Zeh" that we do not eat Matzah on Sukos, and (in Parshah 12:2) that we do not sit in a Sukah on Pesach.