https://www.stylewarning.com/posts/not-all-elementary/
Article
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Critiques a paper claiming all elementary functions reduce to exp-minus-log (EML)
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Points out EML can’t express polynomial roots like √x, which are classically elementary
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Argues the paper uses a narrower-than-standard definition of “elementary function”
Discussion
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Original paper authors acknowledged the limitation; debate is definitional, not mathematical
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Commenters split: some call it goal-post-moving, others say it’s a valid scoping critique
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Connection to Risch algorithm and symbolic integration brought up
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Practical EML implementation linked; trig functions failing due to mirrored-case issues
Discuss on HN