The character that doesn't believe women are equal to men is Ismene.
When we talk about these characters we have to realize the fact that they were actually write in a time when men had a totally different role in comparison to women. For that reason we cannot judge them. The correct answer for this question is this one: "Ismene." Ismene does not believe women are equal to men. Aside from that, she also does not believe that women should ever violate the laws of men, since they are stronger and deserve subservience.