clarified \<Zcomp> (small) vs. \<Zsemi> (big);
--- a/etc/symbols Fri Mar 19 13:22:12 2021 +0100
+++ b/etc/symbols Fri Mar 19 13:44:33 2021 +0100
@@ -367,7 +367,7 @@
\<bind> code: 0x00291c group: operator abbrev: >>=
\<then> code: 0x002aa2 group: operator group: Z_Notation abbrev: >>
\<some> code: 0x0003f5
-\<Zsemi> code: 0x002A1F group: Z_Notation group: punctuation
+\<Zcomp> code: 0x002A3E group: Z_Notation group: punctuation
\<Zinj> code: 0x0021A3 group: Z_Notation group: arrow abbrev: .>
\<Zpinj> code: 0x002914 group: Z_Notation group: arrow abbrev: .>
\<Zfinj> code: 0x002915 group: Z_Notation group: arrow abbrev: .>
@@ -381,6 +381,7 @@
\<Zrres> code: 0x0025B7 group: Z_Notation group: relation
\<Znrres> code: 0x002A65 group: Z_Notation group: relation
\<Zspot> code: 0x002981 group: Z_Notation group: punctuation
+\<Zsemi> code: 0x002A1F group: Z_Notation group: punctuation
\<Zproject> code: 0x002A21 group: Z_Notation group: operator
\<Ztypecolon> code: 0x002982 group: Z_Notation group: relation
\<Zhide> code: 0x0029F9 group: Z_Notation group: operator
--- a/lib/texinputs/isabellesym.sty Fri Mar 19 13:22:12 2021 +0100
+++ b/lib/texinputs/isabellesym.sty Fri Mar 19 13:44:33 2021 +0100
@@ -377,7 +377,7 @@
\newcommand{\isasymZarithmos}{\isamath{\mathbb A}} %requires amssymb
\newcommand{\isasymZuniv}{\isamath{\mathbb U}} %requires amssymb
\newcommand{\isasymZworld}{\isamath{\mathbb W}} %requires amssymb
-\newcommand{\isasymZsemi}{\isamath{\fatsemi}} %requires stmaryrd
+\newcommand{\isasymZcomp}{\isamath{\fatsemi}} %requires stmaryrd
\newcommand{\isasymZinj}{\isamath{\rightarrowtail}} %requires amssymb
\newcommand{\isasymZpinj}{\isaZpvbar{\isamath{\rightarrowtail}}} %requires amssymb
\newcommand{\isasymZfinj}{\isaZfvbar{\isasymZinj}} %requires amssymb
@@ -392,6 +392,7 @@
\newcommand{\isasymZnrres}{\isaZhbar{\isamath{\rhd}}} %requires amssymb
\newcommand{\isasymZspot}{\isamath{\bullet}}
\newcommand{\isasymZproject}{\isamath{\upharpoonright}} %requires amssymb
+\newcommand{\isasymZsemi}{\isatext{\raise 0.66ex\hbox{\oalign{\hfil\isamath{\scriptscriptstyle\mathrm{o}}\hfil\cr\hfil\isamath{\scriptscriptstyle\mathrm{9}}\hfil}}}}
\newcommand{\isasymZtypecolon}{\isatext{\raise 0.6ex\hbox{\oalign{\hfil\isamath{\scriptscriptstyle\mathrm{o}}\hfil\cr\hfil\isamath{\scriptscriptstyle\mathrm{o}}\hfil}}}}
\newcommand{\isasymZhide}{\isamath{\backslash}}
\newcommand{\isasymZcat}{\isatext{\raise 0.8ex\hbox{\isamath{\mathchar\frown}}}}