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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: numeri
Date: Sat, 29 Nov 2008 16:36:20 +0200
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Xref: news.gmane.org gmane.emacs.devel:106304
Archived-At: <http://permalink.gmane.org/gmane.emacs.devel/106304>

Observe:

    M-: (get-char-code-property ?4 'numeric-value) RET
      => \4

What does the backslash signify in this case?