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The article may be "written like a personal reflection, personal essay, or argumentative essay" but it's an extremely well written "reflection", greatly helpful and relatively easy to understand, thanks to its nice examples, clear notation and very helpful explanations! whoever is going to work on its "encyclopedic" style, please take care to preserve its value! — Preceding unsigned comment added by 144.200.17.42 ( talk) 09:22, 10 September 2019 (UTC) reply