(self)
return result
Return the free symbols of this pair.
Return the free symbols of this pair.
Return the free symbols of this pair .
def free_symbols(self):
        """
        Return the free symbols of this pair.
        """
        # Overload Basic.free_symbols because self.args[1] may contain non-Basic
        result = self.expr.free_symbols
        if hasattr(self.cond, 'free_symbols'):
            result |= self.cond.free_symbols
        return result
def free_symbols ( self ) : # Overload Basic.free_symbols because self.args[1] may contain non-Basic result = self . expr . free_symbols if hasattr ( self . cond , 'free_symbols' ) : result |= self . cond . free_symbols return result