... corollaries, and thus, ourmain result provides purely combinatorial proofs for the Erd˝os-Heilbronn conjecture and an inverse Erd˝os-Heilbronn theorem.1 Introduction For A a subset of an abelian group, ... critical pairs of subsets of a group of prime order, J. London Math. Soc.31 (1 956 ), 200–2 05. the electronic journal of combinatorics 16 (2009), #R100 8Our main result is the following:Theorem 1.6 ... representation theory of the symmetric group, Youngtableau, and exterior a lg ebras in their proof. Later, Alon, Nathanson, and Ruzsa [3, 4]found another proo f using the powerful Combinatorial Nullstellensatz...