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Posted: **Thu May 12, 2022 11:44 am**

: 5 Theorem 20 7 Let F Be A Finite Field Of Characteristic P Define The Mapping F F By O A Afor All A F Show 1 (14.31 KiB) Viewed 22 times

5. (Theorem 20.7) Let F be a finite field of characteristic p. Define the mapping : F + F by o(a) = afor all a € F. Show that o is a field automorphism (hint: use previous problem to show that o is one-to-one). a