Wikipedia:Articles for deletion/Totient function/Proofs
I agree with the case-by-case approach. Proofs are not inherently unencyclopedic, and there is great value in including them in Wikipedia: don't forget that |Wikipedia is not paper and that Wikipedia's goal is to contain "the sum of all human knowledge" (subject to ,  and , of course, but proof articles only tend to violate these if they are not notable or are badly written). Proofs can be included in encyclopedia articles. They can also be separate articles, but such separate articles must be notable and coherent in their own right. (I see no reason to make them a general exception to 
— NONE, NONE
Stance: comment
Cited policy: WP:PAPER||WP:NOT||WP:NOR||WP:V||WP:N (Wikipedia:What Wikipedia is not)