## &.(English)Zbl 0633.46065

This note summarizes three intertwining observations, concerned with non-commutative $$C^*$$-algebras, with constructive foundations for quantum mechanics, and with non-commutative logics, made at the Category Meeting at Oberwolfach in September, 1983.

### MSC:

 46L60 Applications of selfadjoint operator algebras to physics 46L05 General theory of $$C^*$$-algebras 81Q10 Selfadjoint operator theory in quantum theory, including spectral analysis