M12-fel1

# ACEExample "M12-fel1" : enumeration of cosets of H in G,
# where G = M_12, H = Id, using felsch := 1 strategy.
#
local F, M12, a, b, c;
# We define the Matthieu group M_12 on 3 generators. |M_12| = 95040
F := FreeGroup("a","b","c"); a := F.1; b := F.2; c := F.3;
M12 := F / [a^11, b^2, c^2, (a*b)^3, (a*c)^3, (b*c)^10,
            c*b*c*b*a*b*c*b*c*a^-5];
return ACEfunc(
    FreeGeneratorsOfFpGroup(M12), 
    RelatorsOfFpGroup(M12), 
    [] # Identity subgroup generators (empty list)
    # Options that don't affect the enumeration
    : echo, enum := "M_12", subg := "Id", 
    # Other options
    mess := 25000, felsch := 1, wo := "1250k",
    pmod := 2,     fill := 4,   dsiz := 2000);