supersoluble group 20D10 6 finite group 6 Sylow subgroup 4 maximal subgroup 4 20D20 3 20D2 2 20D35 2 Sylow \(p\)-subgroup 2 \(c\)-normal subgroup 2 \(p\)-nilpotent group 2 nearly \(S\Phi\)-normal subgroup 2 saturated formation 2 tcc-permutable product 2 tcc-subgroup 2 totally permutable product 2 20D15 1 20D30 1 Hall \(S\)-permutably embedded subgroup 1 \(S\)-permutable closure 1 \(S\)-permutable subgroup 1 \(c\)-permutable subgroup 1 permutable subgroups 1 product of subgroups 1