The main object in this paper is
to show that many partition theorems which have been deduced from identities in
basic hypergeometric series and infinite products may in fact be given purely
combinatorial proofs. We show that the manipulations performed on the
generating functions have combinatorial interpretations, and thus we obtain a
“calculus of partition functions” which translates a sizable portion of the
techniques of the elementary theory of basic hypergeometric series into arithmetic
terms.