Schumann, Andrew https://orcid.org/0000-0002-9944-8627
Article History
Received: 21 June 2025
Accepted: 22 January 2026
First Online: 17 February 2026
Declarations
:
: The author declares no conflict of interest and expresses deep gratitude to Prof. Dov M. Gabbay for numerous discussions of the mathematical ideas of the article, which allowed them to be formulated in a clear way.