She thinks she is a virgin, and she challenges everyone who believes she is NOT to swear, that if she IS (a virgin) then they will die a violent death. And if nobody is prepared to take up the challenge, our non-participation would affirm her virginity.good point. she's a liar
Now we know we are NOT descendants of whores, and a similar challenge is put to her, and she dare NOT swear what's going to befall her if our mothers are NOT whores. And she chickened out.
She failed her own challenge.
However, there is a big difference. Our mothers are NOT whores is NOT proven by her chickening out of her own challenge.
I don't how we can prove our mothers are NOT whores. You cannot prove something which never happened. However, she is in a position to prove she is a virgin by medical science with a simple visit to the doctor.
Her refusing to provide a simple evidence invites adverse inference to be drawn against her.