I think the hiccup here is the notion that an open form expression doesn't have a closed form representation, which is not always the case. Closed forms exist f

I think the hiccup here is the notion that an open form expression doesn't have a closed form representation, which is not always the case. Closed forms exist for infinite series and vice versa. 1 - sum{k=1}^{\ifnty} 10^-k is one example.