§   A = B --- A book about proofs of combinatorial closed forms 
 The book explains algorithms on solving closed forms for combinatorial 
 recurrences, by means of  Zeilberger's algorithm . 
 The book is written by Zeilberger himself, and supposedy also teaches one Maple. 
 I'd like to learn the algorithm, since it might be useful eventually for 
 Groebner basis / loop analysis shenanigans I like to play as part of 
 my work on compilers.