"When is one thing equal to some other thing?" Barry Mazur June 12, 2007 https://bpb-us-e1.wpmucdn.com/sites.harvard.edu/dist/a/189/files/2023/01/When-is-one-

"When is one thing equal to some other thing?" Barry Mazur June 12, 2007 https://bpb-us-e1.wpmucdn.com/sites.harvard.edu/dist/a/189/files/2023/01/When-is-one-thing-equal-to-some-other-thing.pdf https://bpb-us-e1.wpmucdn.com/sites.harvard.edu/dist/a/189/f... https://people.math.osu.edu/cogdell.1/6112-Mazur-www.pdf https://people.math.osu.edu/cogdell.1/6112-Mazur-www.pdf