We corresponded in the past and I appreciate your prompt answers...
Top of Amud a. Rabah says the megu. By every chazaka without a tayna, why don't we say that the person should be believed with the same megu?
Thank you in advance
There are two possible ways that Migu may work. Firstly, Migu adds strength to the Tayna a person makes. This is because Taynos of a person who has the ability to make a winning Tayna have more weight. Secondly, Migu helps to prove that a persons Tayna is not a lie, becauseif he was going to lie, he would have said a better lie.
Either way, Migu can only help to support a Tayna. If there is no Tayna, Migu is worthless.
Dov Freedman