Symbol

In Ontohub, an ontology consists of symbols and sentences. The possible kinds of symbols depend on the logic:
 * OWL: classes, individuals, object properties, data properties
 * Propositional logic: propositional letters
 * Common Logic: names, sequence markers
 * CASL: sorts, predicate symbols, operation symbols

Ontohub page
On an ontology page, you get an overview of the symbols in an ontology.