Kang wrote:doogly wrote:That's not at all a proof. You just put the word "clearly" in the step where you took one smiley plus smiley and had two smileys. But, you were trying to prove that. If you want to prove a thing, you can't just write it down.

What is it you are wondering about? That the additive inverse of a negative number is a positive number, or that the product of two negative numbers is a positive number?

Don't underestimate the power of randomly adding words. Didn't Einstein once publish a book titled 'Relativity made clear for everyone' (or along those lines) which basically was the same as his scientific work just with an occasional 'dear reader' thrown in?

Sure, but the extra "dear reader"s were not what made his proofs proofs.