getInstance(toList(new MultNode(new ValueNode<>(2),
new ValueNode<>(-2.)), new MultNode(new ValueNode<>(2),
new ValueNode<>(-3.))));
int size = node.getValue().size();
List<INode> n;
node.addAll(n = getA(0));
assertEquals(size + 1, node.getValue().size());
assertEquals(node.getValue().get(size), n.get(0));
ListNode node2 =
getInstance(toList(new MultNode(new ValueNode<>(2),