The plan of the present paper is to discuss properties of systems more or less abstractly; that is to define system and to describe the properties that are common to many systems and which serve to characterize them all.


p. 18: Introduction - Definition of System, 1956


The plan of the present paper is to discuss properties of systems more or less abstractly; that is to define system and to describe the properties...

The plan of the present paper is to discuss properties of systems more or less abstractly; that is to define system and to describe the properties...

The plan of the present paper is to discuss properties of systems more or less abstractly; that is to define system and to describe the properties...

The plan of the present paper is to discuss properties of systems more or less abstractly; that is to define system and to describe the properties...