Dear Levie,
Let
M:=[Group([ (4,5), (2,3), (1,2)(4,5) ]), Group([ (4,5), (2,3),
(1,3) ]),
Group([ (4,5), (2,5), (1,3) ]), Group([ (4,5), (2,5), (1,3)(4,5) ]),
Group([ (4,5), (2,5), (1,3)(2,4) ]),Group([ (4,5), (2,5), (1,3)
(2,5) ]),
Group((1,3,4,5),(1,6)(2,5))];
Suppose I want to know which of the elements of G are isomorphic to
another group, say,
g:=Group((1,2,3,4,5,6),(1,6)(2,5)(3,4));
I tried doing this but indirectly:
isom:=Filtered(M, x -> ForAll(x, z -> IsomorphismGroups(x,g)=fail));
Why don't you use
isom:=Filtered(M, x -> ForAll(x, z -> IsomorphismGroups(x,g) <> fail));
Or maybe I have misunderstood your question?
Cheers,
Burkhard.
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