The operating logic may be diagrammed to different levels of completeness of information. Whatever the level of completeness, the diagram communicates functional information explicitly to the degree ...

Symbols are included to depict mathematical functions, graphs, process equipment, instruments ... may make use of standard symbols now used for piping and instrument diagrams, logic diagrams, loop ...

Other major works of Venn’s include probability theory and symbolic logic. Venn had initially used diagrams developed by the Swiss mathematician Leonard Euler to show some relationships between ...