Install emacs25-common-non-dfsg by entering the following commands in the terminal:
sudo apt update sudo apt install emacs25-common-non-dfsg
Description:
GNU Emacs common non-DFSG items, including the core documentation
This package includes the core Emacs documentation: the Emacs Info pages, the Emacs Lisp Reference Manual, and the Emacs Lisp Intro. . GNU Emacs is the extensible self-documenting text editor. This package contains the architecture independent infrastructure that is not compliant with the Debian Free Software Guidelines. In particular, this includes some of the GNU Emacs info pages, as they are covered under the GFDL, and specify invariant sections. See http://www.debian.org/vote/2006/vote_001 for more information.
Version: 25.2+1-1
Section: multiverse/editors