\catcode`\@=11
\let\Cgaps\undefined\let\Rgaps\undefined\let\getcgap@\relax\let\getrgap@\relax
\let\cgaps\undefined\let\rgaps\undefined\let\Gaps@@\relax\let\cgaps@\relax
\let\rgaps@\relax\let\gaps@@\relax\let\mgaps@\relax\let\mgaps@@\relax
\let\mgaps@@@\relax\let\mgaps@@@@\relax\let\changewidth\undefined
\let\ARROW@\relax\let\OPTIONS@\relax
\expandafter\let\csname\string @(\endcsname\relax
\let\zero@\relax\let\one@\relax\let\a@\relax\let\ds@\relax\let\dsA@\relax
\let\dsO@\relax\let\ds@@\relax\let\dtX@\relax\let\dtXA@\relax\let\dtXO@\relax
\let\dtX@@\relax\let\dtY@\relax\let\dtYA@\relax\let\dtYO@\relax
\let\dtY@@\relax\let\da@\relax\let\dx@\relax\let\dX@\relax\let\dy@\relax
\let\dY@\relax\let\p@@\relax\let\L@\relax\let\l@\relax\let\dL@\relax
\let\dl@\relax\let\s@\relax\let\uns@\relax\let\optioncodes@\relax
\let\slopes@\relax\let\slope@\relax\let\slope@a\relax\let\dotoks@i\relax
\let\dotoks@ii\relax\let\preCD@\relax\let\outside@\relax\let\arrow@\relax
\let\harrow@b\relax\let\harrow@bb\relax\let\harrow@e\relax
\let\harrow@ee\relax\let\harrow@\relax\let\tsize@\relax
\let\tsizeCDlabels\undefined\let\ssizeCDlabels\undefined\let\tsize@@\relax
\let\varrow@\relax\let\getcos@\relax\let\Nnext@\relax\let\arrow@@\relax
\let\outCD@\relax\let\preCDspace\undefined\let\postCDspace\undefined
\let\predisplayspace\undefined\let\postdisplayspace\undefined
\let\PreCDSpace\undefined\let\PostCDSpace\undefined\let\CD\undefined
\catcode`\@=\active