Text Formatting ⇒ spelling checker enable

[josefcarel]

I'm working with lyx but I don't know how to enable the grammar checker.
According to what I see in the Preferences section, the correction engine is Enchant and the alternative language is Spanish, and yet I don't see it working.
Surely I made some mistake but I don't see it.
Thanks for any help
Josef

[Bal Tamang]

So, we extend the different prime numbers $D=11,13,17, 19$ and non-zero integer $N$ in the integers solutions of the quadratic Diophantine equations $X^{2}-DY^{2}=\pm N$ in the case $|N|>\sqrt{D}$.

[josefcarel]

I think you made a mistake with my post concerning Spelling Checker. In any case i have resolve my problem. Thanks any way