http://news.ycombinator.com/item?id=3955532 http://news.ycombinator.com/item?id=3955532 When you have 26 letters to choose from, you're bound to end up recycli

http://news.ycombinator.com/item?id=3955532 http://news.ycombinator.com/item?id=3955532 When you have 26 letters to choose from, you're bound to end up recycling some letters. Some combinators were useful enough that they got to keep their names. I've seen at least three N combinators, but they were almost always stepping stones to simplify later expressions and never useful enough to memorize or allocate a reserved letter to.