(self)
Returns the lower bound of the Index.

        Examples
        ========

        >>> from sympy import Idx
        >>> Idx('j', 2).lower
        0
        >>> Idx('j', 5).lower
        0
        >>> Idx('j').lower is None
        True
Returns the lower bound of the Index.
Returns the lower bound of the Index .
def lower(self):
        """Returns the lower bound of the Index.

        Examples
        ========

        >>> from sympy import Idx
        >>> Idx('j', 2).lower
        0
        >>> Idx('j', 5).lower
        0
        >>> Idx('j').lower is None
        True

        """
        try:
            return self.args[1][0]
        except IndexError:
            return
def lower ( self ) : try : return self . args [ 1 ] [ 0 ] except IndexError : return