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Proving that 2 n n + 1 for all integers n 1 . Hypothesis: 2 n n + 1 Base Case: for n = 1

Proving that 2nn+1 for all integers n1.
Hypothesis: 2nn+1
Base Case: for n=1:21=2,1+1=2,22, This base case holds true.
Inductive step: Assuming the statement is true for n=k :
Inductive hypothesis: 2kk+1
To show that the statement is still true for k+1:2k+1(k+1)+1
Using inductive hypothesis: 2k+122k
Since it was assumed 2kk+1 :
22k2(k+1),,2k+12k+2
Need to show that 2k+2k+2,,2kk
This is true for all k1, proving that 2k+1(k+1)+1
This is a weak induction because it is assumed the statement is true and then
prove it for k+1.
Do you agree or disagree with the statement? and why?
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