Whether other and self can coexist

def is_contradictory(self, other):
        """
        Whether other and self can coexist
        """
        other = self.coerce(other)
        to_i = self.to_i
        assert to_i(other.low) <= to_i(other.high), "Low must be <= high"
        if max(map(to_i, [other.low, self.low])) <= min(map(to_i, [other.high, self.high])):
            return False
        else:
            return True