Talk:1984 AIME Problems/Problem 7

The AOPS topic had the formula written as

f(n)= {n3if n1000f(f(n+5))if n<1000

If you look at this page, you can see about halfway down the page under the heading "Cases and distinctions" that the "\text{if }", which causes a problem in AopsWiki, should be replaced with "\mbox{if }".