Dear GAP-forum,
How can I define a function with explicit domain and codomain?
I need it do find the size of the kernel of the mapping
t: C_4^3 \times S_4 \rightarrow \{ \pm 1 \}: (h_1,h_2,h_3,h_4) \mapsto
sgn(h_1)sgn(h_2)sgn(h_3)sgn(h_4)
Best regards,
Inneke Van Gelder
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