IEvalTarget interface should be implemented by the element or node to be checked through the Vocabulary.
IOperator interface defines the methods to be implemented by the operator between propositions.
IOperator1 interface defines the methods to be implemented by the operator which has an argument.
IProposition interface the methods to be implemented by the representation of a proposition.
AbstractTerms is the default term definition.
This class delegates the evaluation to the delegation target.
WidgetsVocabulary defines propositions related to widgets such as button and radio button.