"I am routinely asked questions like, 'What's eight times zero?' Or, 'how many sides does a triangle have?' These are eighth ...
How can you have a proof without proving anything? Mathematicians found a way and, in the process, came to blows over it – but 100 years on, this trick is a common part of modern maths, says columnist ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results