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How Close Are Computers to Automating Mathematical Reasoning?

In the 1970s, the late mathematician Paul Cohen, the only person to ever win a Fields Medal for work in mathematical logic, reportedly made a sweeping prediction that continues to excite and irritate mathematicians — that “at some unspecified future time, mathematicians would be replaced by computers.” Cohen, legendary for his daring methods in set theory, predicted

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Can self-driving cars make roads safer and less congested?

Pedestrians in downtown Miami one weekday last November might have noticed something unusual about the blue Ford Fusions threading their way through the city’s congested streets. An odd-looking array of cameras and sensors sat atop each car’s roof. And inside, the person in the driver’s seat almost never touched the steering wheel. Unlike the conventional

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