Remove “at” before a section symbol

Error²Federal courts, Illinois courts21st and 22nd editions

“At” introduces a page; a section or paragraph pincite follows its own symbol directly: “Id. § 2006”, not “Id. at § 2006”.¹

1. 1R. 3.3 Sections and Paragraphs; B12.2 Short Form Citation.
2. 2An error: the rule in note 1 allows one form, and this is not it.