Solution of the word problem for certain types of groups II
J. L. Britton · Proceedings of the Glasgow Mathematical Association · 1957
The purpose of this paper is to prove a theorem which concerns the normal subgroup of a free product Π generated by a given subset Ω. This theorem was stated in the first paper of this series (Britton [1]) and an application was made to the word problem. The present work is, however, independent.