This 1st Mishnah of the 2nd Perak is given the title "Eshes Achiv She'lo Hayah B'olamo". The same title is given to the 2nd Mishnah??????
David Strimling, Ra'anana
It is not so problematic if the same title is used, for also the 2nd MIshnah discusses this.
In any case, perhaps we will change the title of the 2nd Mishnah (18b, 3) to say
3) Who is considered Eshes Achiv She'lo Hayah B'olamo?
Pesach Feldman