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Jon Awbrey 15:00, 10 February 2006 (UTC) reply

Stubby sections to work on when I get a chance: Jon Awbrey 04:50, 15 March 2006 (UTC) reply

Composition

Projection

Reducibility and irreducibility

The article previously consisted of a contrived example due to Jon Awbrey, so I have rewritten it. I think ternary relation is the more common term. Are there any objections to renaming the article? -- Hans Adler ( talk) 23:04, 14 May 2009 (UTC) reply