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 KASH3 Reference Manual
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Function

Index ( grp^abl G, grp^abl H ) -> elt-ord^rat

Description

The index of the subgroup H in G, or zero if H is of infinite index.

Examples

x_a := AbelianGroup([20]); x_b := MaximalSubgroups(x_a)[2]; Index(x_a,x_b);
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