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The articles on intellectual property theft were illuminating. I did not know that some of the rules were so explicit e.g. the exact maximum length of a poem must be less than 250 words. I am trying to figure out how this works for math. Does a specific problem belong to a person? If I borrow a open box optimization problem from a book, does the problem actually belong to the author, or must I use different numbers. Making manually solved problems for students is a hassle because the numbers must “work well together” to allow a solution by hand. It is often easier to simply find such a problem somewhere else. Creating technolgy based problems is easier because I can use almost any numbers mathematically meaningful and the problem will work. I will need to think about this issue further.