mlsubsection23.25ex plus 1ex minus .2ex1.5ex plus .2ex
atom_equality: rule.
mlsubsection23.25ex plus 1ex minus .2ex1.5ex plus .2ex
atom_equality_token: rule.
mlsubsection23.25ex plus 1ex minus .2ex1.5ex plus .2ex
mlsubsection23.25ex plus 1ex minus .2ex1.5ex plus .2ex