pm#category_definition
  supertype:  #definition  a concise explanation of the meaning of a word or phrase or symbol
  part of:  pm#ontology  a set of categories, and definitions or axioms about these categories

1 statement is about a direct instance of pm#category_definition: pm#graph1_on_ontology
No  statement uses a specialization of pm#category_definition; click here to add a statement.