Abstract
We prove that in a finite 2 2 -group with no normal Abelian subgroup of rank ≧ 3 \geqq 3 , every subgroup can be generated by four elements. This result is then used to determine which 2 2 -groups T T with no normal Abelian subgroup of rank ≧ 3 \geqq 3 can occur as S 2 {S_2} ’s of finite simple groups G G , under certain assumptions on the embedding of T T in G G .

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