in src/latex2sympy2_extended/latex2sympy2.py [0:0]
def convert_set_minus(self, expr):
if expr.union_expr():
return self.convert_set_union(expr.union_expr())
left = self.convert_set_minus(expr.minus_expr()[0])
right = self.convert_set_minus(expr.minus_expr()[1])
return sympy.Complement(left, right, evaluate=False)