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june 5th, 2020. The day is important because it has been over a week since George Floyd was murdered after having a cop kneel on his neck. I want to apologize for not mentioning this in our posts, or in our lessons. I was unsure of how to address it.
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Asia, Africa, South America, North America, Australia, Antarctica, and Europe
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John Wallis was an English clergyman and mathematician who is given partial credit for the development of infinitesimal calculus. Between 1643 and 1689 he served as chief cryptographer for Parliament and, later, the royal court. He is credited with introducing the symbol ∞ to represent the concept of infinity.