[deport]

Well guess that is crux then isn't it........

First Texas wasn't admitted to the Union via Treaty....

The following is the section regarding dividing into additional state:

Third -- New States of convenient size not exceeding four in number, in addition to said State of Texas and having sufficient population, may, hereafter by the consent of said State, be formed out of the territory thereof, which shall be entitled to admission under the provisions of the Federal Constitution; and such states as may be formed out of the territory lying south of thirty-six degrees thirty minutes north latitude, commonly known as the Missouri Compromise Line, shall be admitted into the Union, with or without slavery, as the people of each State, asking admission shall desire; and in such State or States as shall be formed out of said territory, north of said Missouri Compromise Line, slavery, or involuntary servitude (except for crime) shall be prohibited.

I guess it is a question of whether the congress that approved the Joint Resolution admitting Texas in effect approved the additional states or does Texas have to go before Congress to get that approval should they desire to divide... I think it's a curiousity that will never be known as Texas isn't going to divide.....

Here's Snopes take on the division which by the way is open to the other 49 states also. Snopes

[nae]

Come on, y'all! Read #115, and stop the talk about Texas dividing into five states.

[FreedomCalls]

Here's Snopes take on the division which by the way is open to the other 49 states also.

Yes, but as I pointed out, the other 49 states require the Congress's consent. Texas already has that check-box filled. You even quoted the part where Congress agreed to it already. That's what makes Texas's situation different. All that's left is an act of the Texas state legislature (which will probably never happen as you stated).