\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 Kathy Qing Ji} % % \medskip \noindent % % {\bf A Combinatorial Proof of Andrews' Smallest Parts Partition Function} % % \vskip 5mm \noindent % % % % We give a combinatorial proof of Andrews' smallest parts partition function with the aid of rooted partitions introduced by Chen and the author. \bye .