<index-see-also>An <index-see-also> element within an <indexterm> redirects
the reader to another index entry that the reader should reference in addition to the current
one.
The <index-see> and <index-see-also> elements allow
a form of redirection to another index entry within the generated index. The
<index-see> element refers to an index entry that the reader should use
instead of the current one, whereas the <index-see-also> element refers
to an index entry that the reader should use in addition to the current one.
Processors should ignore <index-see> and
<index-see-also> elements if their parent <indexterm>
element contains any <indexterm> children.
In addition to its "see also" redirection, an <index-see-also> functions
as a pointwise index term, thereby typically generating a page reference as well as the "see also"
indication.
It is not an error for there to be multiple <index-see-also> elements for
a single index entry.
See appendix for information about this element in OASIS document type shells.
+ topic/index-base indexing-d/index-see-also
The following example illustrates the use of an <index-see-also>
redirection element within an <indexterm>:
<indexterm>Carp
<index-see-also>Goldfish</index-see-also>
</indexterm>The following example illustrates the use of an <index-see-also>
redirection element to a more complex (multilevel) <indexterm>:
<indexterm>Feeding
<index-see-also>Goldfish <indexterm>feeding</indexterm></index-see-also>
</indexterm>This is part of the indexing markup that might generate index entries such as:
<ph> within
<index-see-also>:<indexterm>μ = E<sub>0</sub>/V<sup>2</sup>
<index-see-also>E=mc<sup>2</sup></index-see-also>
</indexterm>The following attributes are available on this element: Universal attribute group and @keyref.