(self)
return self._args[2]
True if 'self' is left-open.

        >>> from sympy import Interval

        >>> Interval(0, 1, left_open=True).left_open
        True
        >>> Interval(0, 1, left_open=False).left_open
        False
True if 'self' is left-open.
True if self is left - open .
def left_open(self):
        """
        True if 'self' is left-open.

        >>> from sympy import Interval

        >>> Interval(0, 1, left_open=True).left_open
        True
        >>> Interval(0, 1, left_open=False).left_open
        False

        """
        return self._args[2]
def left_open ( self ) : return self . _args [ 2 ]