def _contains(self, other):
        r = false
        for e in self._elements:
            t = Eq(e, other, evaluate=True)
            if isinstance(t, Eq):
                t = t.simplify()
            if t == true:
                return t
            elif t != false:
                r = None
        return r
Angular frequency, omega
dataset/ETHPy150Open sympy/sympy/sympy/sets/sets.py/FiniteSet._contains--crossover with--dataset/ETHPy150Open simpeg/simpeg/SimPEG/EM/Utils/EMUtils.py/omega