It's been a long time since I read it and I'd forgotten about that explanation. I understand the distinction they are making but it still it seems a confusing u

It's been a long time since I read it and I'd forgotten about that explanation. I understand the distinction they are making but it still it seems a confusing use of terminology, especially when you read it out of context - like the comment I replied to. They were clearly aware of that too ... "It may seem disturbing that we refer to a recursive procedure such as fact-iter as generating an iterative process. "