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5.3.8.5 Hyperlinks in see and see also entries

There is no automatic support for hyperlinks with “see” and “see also” index entries, as there is not enough information to trace the parameters of \indexsee and \indexseealso to corresponding index entries. But if desired, this can be implemented with \hldest and \hlstart (see Explicit hyperlinks); for example:

     \sidx{semantic theory of truth@%
           \leavevmode\hldest{}{}{idx:theo truth}semantic theory of truth}
     ...
     \sidx[seealso]{truth}[definition of]%
           {\hlstart{}{}{idx:theo truth}semantic theory of truth\hlend}