Або купіть у застосунку – тут є трекер читання і ще бага-а-ато цікавок ;)
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Опис
* Novel approach to the mathematics of problem solving, in particular how to do logical calculations. * Many of the problems are well-known from (mathematical) puzzle books. * The solution method in the book is new and more relevant to the true nature of problem solving in the modern IT-dominated world.