Multivalued logic or many-valued logic differs from classical logic by the fundamental fact that it allows for partial truth. In classical logic, truth takes on values in the set {0, 1}—in other words, only the value 1 or 0, meaning “Yes, it's true,” or “No, it's not,” respectively. [Source: Encyclopedia of Geographic Information Science; Multivalued Logic]
geocomputation
analytical methods
multivalued logic
methods