The phrase "core premise" refers to the central idea or principle that something is based on. It is the main concept or belief that forms the foundation of a particular argument, theory, or story. Full definition
They all run on the same core premise: physical ownership of gold via digital blockchain cryptocurrency tokens. (cryptoninjas.net)
So we started with first principles — it's wise to start with a simple framework — identifying core premises from which we could build a classroom community. (edutopia.org)
Of the eight available game modes, one is a tutorial, two are deathmatch modes, two are based on avoiding on - screen obstacles, and three share the same core premise of Hot Potato, where you want to avoid being the last person shot before a timer reaches zero. (nintendoenthusiast.com)