The name "sieve" gave it away for me before I'd even looked at the code, but I decided to make sure I was right. Then i looked at it and my mind was kind of blo

The name "sieve" gave it away for me before I'd even looked at the code, but I decided to make sure I was right. Then i looked at it and my mind was kind of blown but how neat and concise it was. This definitely makes me want to take a look at functional programming (just ordered "The Little Schemer")