Not that this belongs here, but your other thread no longer exists.
The Rama says that one should say “L’shana tova tikasev” on RH night. The Mishna Berura adds that one should say “Tikaseivi” to women.
No one says that I should wish shana tova to my doorman, because he is not jewish. Why then does the MB say one should say this to women? I think he must have held that they are Jewish. And if the C”C held so, it should be good enough for you and me.
The only question that remains is why didn’t the Rama say this? Clearly, women were not considered Jewish as far back as the Rama. I would be curious to know at what point they became part of the tribe, and I would venture to say it was when they began learning Torah (i.e. beis yaacov movement). Therefore, one can only imagine what would be if they would start learning Talmud! Then they could not only be jews but even (dare I say?) Rabbis….