[quote=Grey]
When I hear theorem, I think math. If you're gonna use math to identify someone's gender, I really wanna see it.If not, I still would like to check it out.
[/quote]

Simplistically:
Female=f
Male=m
Young Crona=Female
Young Crona=c
Ragnarok=Male
Ragnarok=r
Hermaphrodite=h
Present Crona=g

(c+r=g)=(f+m=h)
Therefore
(c=f), (r=m), and (g=h)
g=h
Present day Crona is presently a hermaphrodite. Though, was originally a female until the addition of Ragnarok, the black blood. This made the formerly female Crona fuse together with the male Ragnarok, making a gender-neutral Crona at present day.

And, I don't think that was proper math xD