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Re:HN-like math research discussion for Ph.D.s by sampo on Saturday March 02, 2019 @12:45PM (#19290163)
> emails that end in .edu

Only universities in the United States have emails that end in .edu. Most of the universities in the world have domain names that end with their respective country code.

Re:HN-like math research discussion for Ph.D.s by gpm on Saturday March 02, 2019 @02:58PM (#19290848)
> Only universities in the United States

Not strictly speaking true. Univeristy of Toronto (Canada) will give you a toronto.edu email if you're a CS student (even undergrads) or faculty.