Item

An 'Item' individual stands for a real world self-connected object which can be represented as a whole made of connected parts (e.g. a car made of components). In the EMMO, connectivity is the topological foundation of causality. All physical systems, i.e. systems whose behaviour is explained by physics laws, are represented only by 'Item'-s. Members of a 'Collection' lack of causality connection, i.e. they do not constitute a physical system as a whole.

http://emmo.info/emmo/top/mereotopology#EMMO_eb3a768e_d53e_4be9_a23b_0714833c36de

An 'Item' individual stands for a real world self-connected object which can be represented as a whole made of connected parts (e.g. a car made of components). In the EMMO, connectivity is the topological foundation of causality. All physical systems, i.e. systems whose behaviour is explained by physics laws, are represented only by 'Item'-s. Members of a 'Collection' lack of causality connection, i.e. they do not constitute a physical system as a whole.

A real world object is self-connected if any two parts that make up the whole are connected to each other (here the concept of connection is primitive). Alternatively, using the primitive path-connectivity concept we can define a self-connected real world object as an object for which each couple of points is path-connected.

From Latin item, "likewise, just so, moreover".

EMMO_eb3a768e_d53e_4be9_a23b_0714833c36de

Item

http://www.w3.org/2002/07/owl#Thing