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    (Original post by generalebriety)
    You're not thinking at all. Look at how the inductive step takes us from n = 1 to n = 2. I can't give you a bigger hint than that.
    Okay, I think I understand hat you mean now.

    So induction step is this. n=1, then \{x_1\} and x_1=x_1 and \{x_2\} and x_2=x_2. But, then \{x_1,x_2\} all you know is that x_1=x_1 and x_2=x_2, so you can't deduce x_1=x_2.

    So induction fails on n=2.
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    (Original post by Simplicity)
    Okay, I think I understand hat you mean now.

    So induction step is this. n=1, then \{x_1\} and x_1=x_1 and \{x_2\} and x_2=x_2. But, then \{x_1,x_2\} all you know is that x_1=x_1 and x_2=x_2, so you can't deduce x_1=x_2.

    So induction fails on n=2.
    Correct.
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    (Original post by generalebriety)
    Correct
    Yeah, thanks for that. I think that got rid off a few problems I have with induction.

    Sorry, I guess you wouldn't be able to conclude that x_1=x_2 in the first place.
 
 
 
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