[Avodah] How can R' Yochanan and Resh Lakish argue about the tradition of a Gezera Shava?

[Zev Sero]

On 27/11/17 16:21, Micha Berger via Avodah wrote:
> As for "that was a GS?" (A question Lisa also asks...) Amoni velo Amonis
> is justified because the Amoni ddidn't bring food or water when we
> came to their land. And it is the men we would have expected to recieve
> or even buy such previsions from. Moav velo Moavis would be a pretty
> arbitrary time to insist a word be read as specifically male instead
> of gender-neutral if it weren't by GS to Amoni.

Could you please explain this?   Where do you get that there is any 
limmud from Ammon to Moav?  The Torah says *both* Amonim and Moavim are 
banned because they didn't welcome us with bread and water.  You seem to 
be claiming that Amonim are banned for this reason, and then Moavim by 
some sort of gezera shava from Amonim.  Where is this coming from?


-- 
Zev Sero                May 2017, with its *nine* days of Chanukah,
zev at sero.name           be a brilliant year for us all