<section end=art._{{subst:#expr:{{{2}}}-1}} /> <section begin=art._{{{2}}} />

{{subst:#if:|

{{{3}}}

}}

{{{2}}}.

Helper to create a section (see transclusion help at en.wikisource) per article in Disquisitiones arithmeticae.

Usage:

{{subst:DA art|chapter_number|article_number}}

or

{{subst:DA art|chapter_number|article_number|subsection_heading}}

Note: This is project-specific formula: it is very highly improbable that you may use it as such for another proofreading project. If you think the functionality of allowing one to cut a text in small bits ad volo is useful, you have to make a copy and tweak it for the book at hand.