\setupbodyfont[dejavu]

% \ctxlua{print(utf.char(0x2260))}

\starttext

\definetyping[XXX]

\startXXX
  If int(N/2) ≠ N/2
  Then
    Disp "N MUST BE EVEN"
    Stop
  End
\stopXXX

\setuptyping[XXX][escape=yes]

\startXXX
  If int(N/2) /BTEX\ne/ETEX N/2
  Then
    Disp "N MUST BE EVEN"
    Stop
  End
\stopXXX

\setuptyping[XXX][escape={[[,]]}]

\startXXX
  If int(N/2) [[\ne]] N/2
  Then
    Disp "N MUST BE EVEN"
    Stop
  End
\stopXXX

\setuptyping[XXX][escape={$,$}]

\startXXX
  If int(N/2) $\ne$ N/2
  Then
    Disp "N MUST BE EVEN"
    Stop
  End
\stopXXX

\stoptext
