disperse | BrE dɪˈspəːs, AmE dəˈspərs | A transitive verb 1 (scatter) zerstreuen 2 (dispel) auflösen ‹Dunst, Öl› vertreiben ‹Wolken, Gase› 3 (Military) auseinander ziehen 4 (Physics) dispergieren (technical) verteilen zerlegen ‹Lichtstrahl› ⇒ Beam B intransitive verb 1 sich zerstreuen 2 (Physics) sich verteilen
To complete an operational description of round- and Square-Brackets, we will need an axiom that specifies how the two boundaries interact in configurations more complex than the double nesting of Inversion. Here is the James axiom of Arrangement. The axiom specifies an invariant structure across frames.
collect ⇄ disperse
DOT FROM two-level-diagram