In Result 4.4, it was proved for an integer x that if 2
Chapter 4, Problem 4.8(choose chapter or problem)
In Result 4.4, it was proved for an integer x that if 2 | (x 2 1), then 4 | (x 2 1). Prove that if 2 | (x 2 1),then 8 | (x 2 1).
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