YOU can't absolutely prove zero is a number - but a properly trained mathematician can run up a rigorous proof for you in about 5 minutes. In fact, many have, all through the thread. Read them, there are some folks here who DO know what they're talking about. I wouldn't go to my dentist and tell him he fixes my teeth wrong, because I don't know anything about teeth. Similarly, you should not try and tell mathematicians what they're doing wrong if you knowq little/nothing about numbers.
Crystal, you were innocently wrong, and are encouraged to ask questions like this because they are questions that have been asked for thousands of years - not because it is 'unknowable', but because the process of thinking of the question and internalising the answer is worthwhile. But here's the rub - when you ask a question, you have to be prepared to recieve an answer and properly evaluate it before integrating it into your worldview.
I'm almost positive that kunoiichi is in fact a massive troll - he is logical fallacies incarnate. And it is clear that his "who says you need a degree to be smart?" attitude seems utterly facetious when he tries to argue with anyone actually holding one. Obviously you don't need to get a degree to be smart, but wilfully ignoring the value of higher education (in terms of enriching a student's general worldview and specifically qualifying them as an expert in a chosen field) is positively galling to those of us who have done the hard yards, and learned the hard lessons. He's gone on for the 12 hours I was out on the town, and I stagger home to bed notinging that this damn thread that was mathematically resolved back around page 6 is STILL FREAKING GOING.
Kuno, sometimes in your life you have to acknowledge that there are people in the world more knowledgeable than you. The only way to change this is by acquiring their knowledge from them, listening to them, learning from them. If you refuse to learn from those people, the way you have refused to learn from us, then your knowledge gain will be much slower than it should be. Perhaps this is the real reason school wasn't for you? Not big on authority?