I'm doing some Maths revision, as I've got my GCSE exams coming up in a few weeks. I was hoping for some tips on mathematical proof. I understand proof when I'm shown it, but can rarely produce it myself.
What is the minimum that you can explain? And can you simply say that (for example) "due to the proven Circle Theorem, bla bla bla.."? Or must you prove everything?
Here's an example that I was hoping that you lot could give me an example on:
2n - 1 = an odd integer
Now, I wouldn't really know how to *prove* this. I could explain it: 2 multiplied by any number is always an even number, 1 subtracted off an even number always resorts in an odd number... But, that's not enough 'proof' surely?