Remove the preposition from the title

Warning²Federal courts, Illinois courts21st and 22nd editions

Table BT1 drops the prepositions from an abbreviated court-document title: “Def.’s Mem. Supp. Summ. J. 6”, not “Def.’s Mem. of Supp. of Summ. J. 6”.¹

1. 1B17.1.1 Abbreviation; BT1 Court Documents.
2. 2A warning: the form is usually wrong under the rule in note 1, and context can justify it.