User blog comment:Wythagoras/Dollars Function/@comment-11227630-20130928111712

I ask you some questions:

1. What does the black circle mean in Rule 8 and 9?

2. How to solve 3$[[0]3]2? I can't use any rule.

3. How to solve 3$[1][0]? Is it 3$[1]3?

And I'm afraid that your FGH comparisons are wrong.