[Avodah] Shayala of Onaah

[Micha Berger]

On Wed, Aug 08, 2012 at 12:01:07PM -0500, Lisa Liel wrote:
> How could it be a mekach taut?  From the point of view of the buyer, it  
> looked like a sale...

According to Gittin 14a, the deal is invalid if *either* side had made a
ta'us. I should have said "qinyan beta'us", the terminology there, but
meqach ta'us is the usual idiom, even if here it's the memkar that was
actually in error.

Tir'u baTov!
-Micha