«EDIT: I should have said the source of this and related concept information is: (pages 621-624)» Unfortunately, I haven't been able to open it so far. I got a file a little over a megabyte long downloading Symbolics_Common_Lisp_Programming_Constructs.pdf and then I get a complaint it is invalid as a PDF file. I'll be able to try on a different machine much later. @kentpitman@climatejustice.social @pascal_costanza@functional.cafe @screwlisp@gamerplus.org @ramin_hal9001@fe.disroot.org @SDF@mastodon.sdf.org