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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:295975 Archived-At: On Thu, 22 Sept 2022 at 18:11, Lars Ingebrigtsen wrote: > Yeah, I don't think anybody would find the Wikipedia definition of > "l-value" (which is how they spell it) to be helpful when understanding > Lisp. And I'm not sure I do either -- in C, for instance, an l-value is > something that can be assigned to, but in Lisp, a generalised variable > is way more abstract, and can do most anything. Yeah, generalized variables are more like =E2=80=9Cproperties=E2=80=9D in J= ava-like languages (syntactically an object data member, but behaviorally a pair of setter and getter functions) or =E2=80=9Clenses=E2=80=9D in Haskell= (read-only or read-write adapters over a value presenting a different interface).