Published Jul 10, 2026, 5:00 AM ET · Updated 4 months ago · 1 source
The sneaky maths trick for solving problems without answering them
New Scientist
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Original Report
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 Jacob Aron