The mathematical textbook paradox strikes again! One minute they're casually dropping "sheaf cohomology" like you've been studying it since kindergarten, and the next they're carefully explaining that i = √-1 as if you're a complete novice. It's the academic equivalent of asking if you know how to perform brain surgery, then immediately showing you how to use a band-aid. This is why math students develop eye-twitches by senior year. The author probably wrote this while cackling in their office, surrounded by cups of cold coffee and obscure theorems no one has cared about since 1973.
F*cking Math Books

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