I want to show that is irreducible over My try; If there is an expansion it should be lineair. Thus there exist a so that Than or ?
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Originally Posted by bram kierkels I want to show that is irreducible over My try; If there is an expansion it should be lineair. Thus there exist a so that Than or ? Suppose . Check now that from the last equation we get that is a rational, and thus a real, number...( hint: distinguish the cases ) Tonio
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