vivid advice from Levin

Here is a little writing advice:
A well written paper has clear components: skeleton, muscles, etc. The skeleton is an acyclic digraph of basic definitions and statements, with cross-references. The meat consists of proofs (muscles) each separately verifiable by competent graduate students having to read no other parts but statements and definitions cited.
Intuitive comments, examples and other comfort items are fat and skin: a lack or excess will not make the paper pretty. Proper scholarly references constitute clothing, no paper should ever appear in public without!
The trains of thought which led to the discovery are blood and guts: keep them hidden. Other vital parts, like open problems, I skip out of modesty.

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