\ExplSyntaxOn
-%%%%%% 以下の3命令の再定義はもはや不要と思われる(北川)
-% \cs_set:Npn \um_set_mathcode:nnnn #1#2#3#4 {
-% \Umathcode \int_eval:n {#1} =
-% \mathchar@type#2 \csname sym#3\endcsname \int_eval:n {#4} \scan_stop:
-% \ltjsetmathletter{\int_eval:n {#4}}
-% }
-% \cs_set:Npn \um_set_mathcode:nnn #1#2#3 {
-% \Umathcode \int_eval:n {#1} =
-% \mathchar@type#2 \csname sym#3\endcsname \int_eval:n {#1} \scan_stop:
-% \ltjsetmathletter{\int_eval:n {#1}}
-% }
-% \cs_set:Npn \um_set_mathchar:NNnn #1#2#3#4 {
-% \Umathchardef #1 =
-% \mathchar@type#2 \csname sym#3\endcsname \int_eval:n {#4} \scan_stop:
-% \ltjsetmathletter{\int_eval:n {#4}}
-% }
-%%%%%%
\group_begin:
\cs_gset:Npn \um_cs_set_eq_active_char:Nw #1 = "#2 \q_nil {%"
\group_begin:
\group_end:
\ExplSyntaxOff
+
\endinput
+
+