Hello

Could you tell me which one is correct? If none of them are, could you write the correct format?

$\displaystyle \exists$j j $\displaystyle \in$ myset

$\displaystyle \exists$j, j $\displaystyle \in$ myset

$\displaystyle \exists$ j $\displaystyle \wedge$ j $\displaystyle \in$ myset

which I could not get to display properly, but it is

$\displaystyle \exists$ j logical and j $\displaystyle \in$ myset

Thank you all!