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Stay informed with commentary and opinion pieces on the latest issues in science, technology, health and the environment, written by expert New Scientist journalists and world-leading researchers and thinkers.
Mathematics
The sneaky maths trick for solving problems without answering them
How can you have a proof without proving anything? Mathematicians found a way and, in the process, came to blows over it 鈥� but 100 years on, this trick is a common part of modern maths, says columnist Jacob Aron
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