\magnification=1200 \hsize=4in \overfullrule=0pt \input amssym %\def\frac#1 #2 {{#1\over #2}} \def\emph#1{{\it #1}} \def\em{\it} \nopagenumbers \noindent % % {\bf Carsten Schneider} % % \medskip \noindent % % {\bf Ap\'ery's Double Sum is Plain Sailing Indeed} % % \vskip 5mm \noindent % % % % We demonstrate that also the second sum involved in Ap\'ery's proof of the irrationality of $\zeta(3)$ becomes trivial by symbolic summation. \bye .