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#1 2012-06-08 12:35:42

careless25
Real Member
Registered: 2008-07-24
Posts: 560

Proofs

Hi,

I have a Discrete Math midterm approaching soon and I feel that I am weak at proofs, can someone provide me with some activities to do. Say give a batch of proofs to prove or disprove and then check over my solutions?

Thanks!

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#2 2012-06-08 19:00:01

Bob
Administrator
Registered: 2010-06-20
Posts: 9,278

Re: Proofs

hi careless25

I have a Discrete Math midterm approaching soon

In the UK that phrase covers many topics.  You can download past papers and mark schemes for free from some of the exam boards.  But you'd have to look at the content to see if they had what you are seeking.

http://www.edexcel.com/Pages/Home.aspx

http://web.aqa.org.uk/

http://www.ocr.org.uk/

Don't know if that will help.  Or post again with more specific topics.

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob smile

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#3 2012-06-12 05:21:46

careless25
Real Member
Registered: 2008-07-24
Posts: 560

Re: Proofs

Hi bob,

I am studying  modular arithmetic, diophantine equations, linear congruences, prime numbers and logic. And we are supposed to be able to prove statement concerning those topics.
for example:
prove 2^n > n^2 for all n greater than 2.

If you need more info, let me know.

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#4 2012-06-12 05:28:43

Bob
Administrator
Registered: 2010-06-20
Posts: 9,278

Re: Proofs

I still don't know the answer to this.  What is the course you are doing?  Don't they provide a syllabus?

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob smile

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#5 2012-06-12 05:30:25

careless25
Real Member
Registered: 2008-07-24
Posts: 560

Re: Proofs

http://www.math.uwaterloo.ca/~anayak/co … ce103-s10/
will that help? its the first 5 bullet point we have covered so far in the Overview section.
Edit: Also if you click on the Lectures link on top, you should have access to some of the notes.

Last edited by careless25 (2012-06-12 05:32:11)

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#6 2012-06-12 05:54:46

Bob
Administrator
Registered: 2010-06-20
Posts: 9,278

Re: Proofs

That page has a link to 'exams'.  It makes it clear that proofs will be expected and gives a list of ones that will definitely be tested.

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob smile

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#7 2012-06-15 17:49:08

mttal24
Member
Registered: 2012-05-01
Posts: 23

Re: Proofs

Are you asking about proof by Mathematical Induction?

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