Editor’s Note: Published in 1956, this article proved so popular that it served as the inspiration for Martin Gardner’s legendary Scientific American column Mathematical Games. Read more in our ...

Artificial intelligence for formal mathematical reasoning startup Harmonic AI Inc. announced today that it has raised $120 million in new funding on a $1.45 billion valuation. The funding is intended ...

KIMBERLY M. NIEBAUER teaches gifted students in K–5 at Duval County (Fla.) Public Schools. As a Microsoft certified coach and one of EdTech’s 2024 K–12 IT Influencers, she frequently shares best ...

Most people assume democracy can be made perfectly fair with the right voting rules but mathematics says otherwise. Arrow’s Impossibility Theorem proves that no voting system can satisfy all fairness ...

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. Robert Kelly is managing director of XTS Energy LLC, and has more than three ...