concurrent substate
konkurrentne alamolek
olemus
alamolek, milles objekt võib mingis liitolekus asuda ühel ajal teiste sama taseme alamolekutega
= a substate in which an object can reside
simultaneously with other sub states at that same level within the given composite state
ülevaateid
https://nilamkhairnarblog.files.wordpress.com/2018/11/assig5.pdf