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# C3 proof

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1. Where can I find resources to help with learning the types of proof and how to use them where appropriate?
2. (Original post by Revision0161)
Where can I find resources to help with learning the types of proof and how to use them where appropriate?
C3 only covers proof by contradiction and it doesn't even come up in exams as far as I'm aware. It's just a skill. This should be covered in your C3 textbook.
3. (Original post by Revision0161)
Where can I find resources to help with learning the types of proof and how to use them where appropriate?
http://www.physicsandmathstutor.com/...-maths-papers/

The site above is amazing for anything related to A Level Maths; it contains practice papers, exam papers, worksheets by topic and notes for each topic in every A Level Maths module.

http://www.examsolutions.net/

Examsolutions features step by step video tutorials, which will help you learn topics for any A Level Maths exam board including proof.
4. (Original post by RDKGames)
C3 only covers proof by contradiction and it doesn't even come up in exams as far as I'm aware. It's just a skill. This should be covered in your C3 textbook.
Are you sure because the MEI specification says:
Understand, and be able to use, proof by direct argument, exhaustion and contradiction. Be able to disprove a conjecture by the use of a counter example.
Btw don't have textbooks yet.
5. (Original post by Revision0161)
Are you sure because the MEI specification says:
Understand, and be able to use, proof by direct argument, exhaustion and contradiction. Be able to disprove a conjecture by the use of a counter example.
Btw don't have textbooks yet.
They aren't anything special. You're pretty much familiar with direct argument. Counter-example and contradiction differ slightly but are pretty much the same. And I'm not sure how much exhaustion really comes up in an MEI exam.

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