Abilene paradox attitudes towards them if they do not go along. This action-anxiety arises from what Harvey termed "negative fantasies"—unpleasant visualizations of what the group might say or do if individuals are honest about their opinions—when there is "real risk" of displeasure and negative consequences for not going along. The individual may experience "separation anxiety", fearing exclusion from the group. The theory is often used to help explain extremely poor group decisions, especially notions of the superiority of "rule by committee". For example, Harvey himself cited the Watergate scandal as a potential instance of the Abilene paradox in action. The Watergate scandal
Automorphism group of a free group and the fourth type to any pair of generators. Nielsen gave a rather complicated finite presentation using these generators, described in . Automorphism group of a free group In mathematical group theory, the automorphism group of a free group is a discrete group of automorphisms of a free group. The quotient by the inner automorphisms is the outer automorphism group of a free group, which is similar in some ways to the mapping class group of a surface. showed that the automorphisms defined by the elementary Nielsen transformations generate the full automorphism group of a finitely generated free group. Nielsen,