RE: search Emacs Lisp Intro

[Drew Adams]

> Self-explanatory title: is there a function to search the 
> Emacs Lisp Intro within Emacs?

C-h i
Choose that manual.
C-s, as for any other Info manual.

If repeating C-s does not search across sections of the manual, then you have an
older Emacs version, so use `s', not `C-s'.

But it is usually better to find topics using `i' (index access) than by
searching.

Try also reading the manual about Info itself.  It explains all of this and much
more.