2008年10月10日星期五

after the first test

I have just wrote the first midterm test and
I found it easy since it's all about induction.

The first time I new the technique of proving using induction,
I thought it doesn't make sense, because we can have many flaws.
However now, I feel that for some specific proofs, induction is great!

For one of the question in the test,
I am wondering if we need a lemma....

anyway~ hope this one is the worst, and hope I can do better and better. ^ ^

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