In 1946, the mathematician Paul Erdős posed the unit distance problem—and suggested a winning strategy. An A.I. model has now ...

A Microsoft account allows you to sign in to a wide range of Microsoft 365 apps and services using a single email and password. However, at times, you may encounter issues signing in to these apps.

Mathematician Will Sawin discusses his experience reviewing and refining a mathematical proof devised by OpenAI's internal ...