--- a/src/HOL/ROOT Sat Jun 06 10:58:13 2020 +0200 +++ b/src/HOL/ROOT Mon Jun 08 15:09:57 2020 +0200 @@ -702,8 +702,6 @@ Mutilated_Checkerboard Puzzle Summation - First_Order_Logic - Higher_Order_Logic document_files "root.bib" "root.tex"