You said that ${\displaystyle \lim _{n\to \infty }{\int _{0}^{\infty }{\underbrace {x^{{\color {Red}-}x^{\cdot ^{\cdot ^{x}}}}} _{{\color {Red}2}n}\ dx}\ =\ 1}}$ and I was just wondering how you've arrived at that conclusion. — 79.113.234.168 ( talk) 16:21, 16 April 2013 (UTC) reply