Class TRUTH-VALUE-CONSTANT

• Defined in theory: Parametric-constraints
• Source code: parametric-constraints.lisp

Slots on this class:

Documentation:

A truth-value constant is a symbol that denotes a logical value of true or false. It is not a predicate!

Instance-Of: Class

All-Instances: {'False, 'True}

Other Related Axioms:

(<=> (Restricted-Constraint-Sentence ?Sentence
                                     ?Class-Of-Logical-Operators
                                     ?Class-Of-Relation-Constants
                                     ?Class-Of-Term-Operators
                                     ?Class-Of-Object-Constants)
     (And (Sentence ?Sentence)
          (Not (Quantsent ?Sentence))
          (Subclass-Of ?Class-Of-Logical-Operators Logical-Operator)
          (Subclass-Of ?Class-Of-Relation-Constants
                       Relation-Constant)
          (Subclass-Of ?Class-Of-Term-Operators Function-Constant)
          (Subclass-Of ?Class-Of-Object-Constants Atomic-Term)
          (Or (Exists 
                  (?R @Tlist)
                  (And (= ?Sentence (Listof ?R @Tlist))
                       (Instance-Of ?R ?Class-Of-Relation-Constants)
                       (=> (Item ?T (Listof @Tlist))
                           (Restricted-Constraint-Term 
                               ?T
                               ?Class-Of-Term-Operators
                               ?Class-Of-Object-Constants))))
              (Truth-Value-Constant ?Sentence)
              (Exists 
                  (?Op @Sentences)
                  (And (= ?Sentence (Listof ?Op @Sentences))
                       (Instance-Of ?Op ?Class-Of-Logical-Operators)
                       (=> (Item ?S (Listof @Sentences))
                           (Restricted-Constraint-Sentence 
                               ?S
                               ?Class-Of-Logical-Operators
                               ?Class-Of-Relation-Constants
                               ?Class-Of-Term-Operators
                               ?Class-Of-Object-Constants)))))))