The solution for left-BP797 is image related to this concept.
Aaron David Fairbanks
Bongard Problem with solution relating to concept: golden ratio vs. Bongard Problem unrelated to this concept.
See BP859 for the version with crossings disallowed.
Bongard Problems with "world" finitely many line segments in 2D space allowed to cross vs. other Bongard Problems.
Bongard Problems with "world" finitely many crossing line segments in 2D space vs. other Bongard Problems.
Bongard Problems with "world" finitely many line segments in 2D space vs. other Bongard Problems.
Leo Crabbe