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Law and crime A prison riot breaks out at a high-security prison in Angarsk, Irkutsk Oblast, Russia, allegedly in response to an officer beating an inmate. Large sections of the prison are set on fire, and casualties are reported. (BBC News) Politics and elections 2020 Kiribati parliamentary election Kiribati postpones its parliamentary elections for a week. (RNZ) Science and technology The ...
The content ranges from extremely difficult algebra and pre-calculus problems to problems in branches of mathematics not conventionally covered in secondary or high school and often not at university level either, such as projective and complex geometry, functional equations, combinatorics, and well-grounded number theory, of which extensive knowledge of theorems is required.