Can someone help me understand this problem? Why is it necessary in step 2 to set n=m? https://i.stack.imgur.com/xqWWb.jpg
2026-04-07 14:33:43.1775572423
Weak Induction Proof - Variables
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They want to show that if the statement is true for $n=m$ then it is also true for $n=m+1$
Some authors use if true for $k$ then it is true for $k+1$
Some authors use if it is true for $n$ then it is true for $n+1$
It is a matter of taste and they are all equivalent.