I gave up on mine when I learned it was equivalent to type inferencing an F_omega language, and that such a task was Turing unsolvable. It was a bit of a relief

I gave up on mine when I learned it was equivalent to type inferencing an F_omega language, and that such a task was Turing unsolvable. It was a bit of a relief because after three years I wasn't getting anywhere on it (unsurprisingly).