# Questions encouraging a myriad of answers

How do you view a question asking for many different answers to one problem?

As a simple example, there are many interesting ways of proving

1+2+...+n = n*(n+1)/2


and I know several. How would you view a thread asking for different proofs that the formula holds?

It seems to follow all of the rules, except perhaps

If you can imagine an entire book that answers your question, you’re asking too much.

Ps. the example might be OT, but I think my question is easy to understand.

• Well, there are general list questions, which we don't like. We have several reference questions, which distinguish themselves by a specific educational/didactic as well as kill-many-of-the-same purpose. I guess the distinction can be difficult. – Raphael Oct 11 '12 at 21:50