Consider the statement P(n) : 2n + 1 < 2n. Since P(3) is true, we assume by mathematical induction that k >= 3 and P(k) is true so that 2(k + 1) + 1 = 2k + 2 + 1 < 2k + 2 < 2k + 2k = 2k + 1. Can you explain each algebraic step of the last long expression clearly? I understand the concept of induction, I just need help with the algebra. Thanks!

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter2: The Integers
Section2.2: Mathematical Induction
Problem 50E: Show that if the statement 1+2+3+...+n=n(n+1)2+2 is assumed to be true for n=k, the same equation...
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Consider the statement P(n) : 2n + 1 < 2n. Since P(3) is true, we assume by mathematical induction that k >= 3 and P(k) is true so that 2(k + 1) + 1 = 2k + 2 + 1 < 2k + 2 < 2k + 2k = 2k + 1. Can you explain each algebraic step of the last long expression clearly? I understand the concept of induction, I just need help with the algebra. Thanks!

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