Nils A. Baas

On a beautiful overlook near the university, a middle-aged man is enjoying the view of the majestic Fjord. Judging from his clothing, he is a stonemason from the quarry just below him. But actually, he is a professor at the university who often...

For a long time time, I have had a profound interest in studying “higher order structures” of various kinds. What is a higher order object? I will not here attempt to give a definition, but rather illustrate by examples what I have in mind....