I got the notion of an inclusion model from Dale Cushingberry, high school principal from Topeka, Kansas. He used this term in a radio interview with Tavis Smiley on 21 May 2004.
Pubwan is inclusive as a matter of principle. (See "What is pubwan," http://geocities.com/n8chz/whatis.htm) Nevertheless, it might be nice if pubwan had a method to its madness. To that end, I advocate formulating a pubwan inclusion model.
For now, I will stick with notational rubrics that I have already introduced elsewhere in the PubwanLiterature, namely...
Some terminology introduced by others (in non-pubwan contexts, of course)...