Theory ABSTRACT-ALGEBRA

Defines the basic vocabulary for describing algebraic operators, domains, and structures such as fields, rings, and groups.

Theories included by Abstract-Algebra:

    Frame-Ontology
       Kif-Relations
          Kif-Sets
          Kif-Lists
             Kif-Numbers

Theories that include Abstract-Algebra:

    Physical-Quantities
       Unary-Scalar-Functions
          Cml
             Thermodynamics
             Dme
                Thermodynamics
       Standard-Units
          Simple-Bikes
          Cml ...
          Vt-Design
             Simple-Bikes
             Vt-Domain
                Vt-Example
          Unary-Scalar-Functions ...
       Scalar-Quantities
          Vt-Design ...
          Vector-Quantities

No classes defined.

25 relations defined:

No functions defined.

No instances defined.

The following constants were used from included theories:

All constants that were mentioned were defined.


Relation BINARY-OPERATOR-ON

A function is a binary operator on a domain if it is closed on the domain, that is, it is defined for all pairs of objects that are instances of the domain and its value on all such pairs is an instance of the domain.
Arity: 2
Domain: Binary-function
Axioms:
(<=> (Binary-Operator-On ?Function ?Domain) 
     (And (Binary-Function ?Function) 
          (Forall (?X ?Y) 
                  (=> (And (Instance-Of ?X ?Domain) 
                           (Instance-Of ?Y ?Domain) )
                      (Instance-Of (Value ?Function ?X ?Y) ?Domain) ))))


Relation ASSOCIATIVE

Arity: 2
Axioms:
(<=> (Associative ?Op ?Domain) 
     (Forall (?X ?Y ?Z) 
             (=> (Instance-Of ?X ?Domain) 
                 (Instance-Of ?Y ?Domain) 
                 (Instance-Of ?Z ?Domain) 
                 (= (Value ?Op ?X (Value ?Op ?Y ?Z)) 
                    (Value ?Op (Value ?Op ?X ?Y) ?Z) ))))


Relation COMMUTATIVE

Arity: 2
Axioms:
(<=> (Commutative ?Op ?Domain) 
     (Forall (?X ?Y) 
             (=> (Instance-Of ?X ?Domain) 
                 (Instance-Of ?Y ?Domain) 
                 (= (Value ?Op ?X ?Y) (Value ?Op ?Y ?X)) )))


Relation INVERTIBLE

Arity: 3
Axioms:
(<=> (Invertible ?Op ?Id ?Domain) 
     (Forall (?X) 
             (=> (Instance-Of ?X ?Domain) 
                 (Exists (?Y) 
                         (And (Instance-Of ?Y ?Domain) 
                              (= (Value ?Op ?X ?Y) ?Id) 
                              (= (Value ?Op ?Y ?X) ?Id) )))))


Relation DISTRIBUTES

Arity: 3
Axioms:
(<=> (Distributes ?Op ?G ?Domain) 
     (And (Binary-Operator-On ?Op ?Domain) 
          (Binary-Operator-On ?G ?Domain) 
          (Forall (?X ?Y ?Z) 
                  (=> (Instance-Of ?X ?Domain) 
                      (Instance-Of ?Y ?Domain) 
                      (Instance-Of ?Z ?Domain) 
                      (= (Value ?Op (Value ?G ?X ?Y) ?Z) 
                         (Value ?G
                                (Value ?Op ?X ?Z) 
                                (Value ?Op ?Y ?Z) ))))))


Relation IDENTITY-ELEMENT-FOR

An object ?id is the identity element for binary operator ?o over domain ?d iff for every instance ?x of ?d, applying ?o to ?x and ?id results in ?x.
Arity: 3
Axioms:
(<=> (Identity-Element-For ?Id ?Op ?Domain) 
     (And (Instance-Of ?Id ?Domain) 
          (Binary-Operator-On ?Op ?Domain) 
          (Forall (?X) 
                  (=> (Instance-Of ?X ?Domain) 
                      (= (Value ?Op ?Id ?X) ?X) ))))


Relation REFLEXIVE

Arity: 2
Domain: Binary-relation
Axioms:
(<=> (Reflexive ?Rel ?Domain) 
     (And (Binary-Relation ?Rel) 
          (Forall (?X) 
                  (=> (Instance-Of ?X ?Domain) (Holds ?Rel ?X ?X)) )))


Relation IRREFLEXIVE

Arity: 2
Domain: Binary-relation
Axioms:
(<=> (Irreflexive ?Rel ?Domain) 
     (And (Binary-Relation ?Rel) 
          (Forall (?X) 
                  (=> (Instance-Of ?X ?Domain) 
                      (Not (Holds ?Rel ?X ?X)) ))))


Relation SYMMETRIC

Arity: 2
Domain: Binary-relation
Axioms:
(<=> (Symmetric ?Rel ?Domain) 
     (And (Binary-Relation ?Rel) 
          (Forall (?X ?Y) 
                  (=> (And (Instance-Of ?X ?Domain) 
                           (Instance-Of ?Y ?Domain) 
                           (Holds ?Rel ?X ?Y) )
                      (Holds ?Rel ?Y ?X) ))))


Relation ASYMMETRIC

Arity: 2
Domain: Binary-relation
Axioms:
(<=> (Asymmetric ?Rel ?Domain) 
     (And (Binary-Relation ?Rel) 
          (Forall (?X ?Y) 
                  (=> (And (Instance-Of ?X ?Domain) 
                           (Instance-Of ?Y ?Domain) 
                           (Holds ?Rel ?X ?Y) )
                      (Not (Holds ?Rel ?Y ?X)) ))))


Relation ANTISYMMETRIC

Arity: 2
Domain: Binary-relation
Axioms:
(<=> (Antisymmetric ?Rel ?Domain) 
     (And (Binary-Relation ?Rel) 
          (Forall (?X ?Y) 
                  (=> (And (Instance-Of ?X ?Domain) 
                           (Instance-Of ?Y ?Domain) 
                           (Holds ?Rel ?X ?Y) 
                           (Holds ?Rel ?Y ?X) )
                      (= ?X ?Y) ))))


Relation TRICHOTOMIZES

Arity: 2
Domain: Binary-relation
Axioms:
(<=> (Trichotomizes ?Rel ?Domain) 
     (And (Binary-Relation ?Rel) 
          (Forall (?X ?Y) 
                  (=> (And (Instance-Of ?X ?Domain) 
                           (Instance-Of ?Y ?Domain) )
                      (Or (Holds ?Rel ?X ?Y) 
                          (= ?X ?Y) 
                          (Holds ?Rel ?Y ?X) )))))


Relation TRANSITIVE

Arity: 2
Domain: Binary-relation
Axioms:
(<=> (Transitive ?Rel ?Domain) 
     (And (Binary-Relation ?Rel) 
          (Forall (?X ?Y ?Z) 
                  (=> (And (Instance-Of ?X ?Domain) 
                           (Instance-Of ?Y ?Domain) 
                           (Instance-Of ?Z ?Domain) 
                           (Holds ?Rel ?X ?Y) 
                           (Holds ?Rel ?Y ?Z) )
                      (Holds ?Rel ?X ?Z) ))))


Relation SEMIGROUP

Arity: 3
Axioms:
(<=> (Semigroup ?Domain ?Op ?Id) 
     (And (Binary-Operator-On ?Op ?Domain) 
          (Associative ?Op ?Domain) 
          (Identity-Element-For ?Id ?Op ?Domain) ))


Relation ABELIAN-SEMIGROUP

Arity: 3
Subrelation-Of: Semigroup
Axioms:
(<=> (Abelian-Semigroup ?Domain ?Op ?Id) 
     (And (Semigroup ?Domain ?Op ?Id) (Commutative ?Op ?Domain)) )


Relation GROUP

Arity: 3
Axioms:
(<=> (Group ?Domain ?Op ?Id) 
     (And (Binary-Operator-On ?Op ?Domain) 
          (Associative ?Op ?Domain) 
          (Identity-Element-For ?Id ?Op ?Domain) 
          (Invertible ?Op ?Id ?Domain) ))


Relation ABELIAN-GROUP

Arity: 3
Subrelation-Of: Group
Axioms:
(<=> (Abelian-Group ?Domain ?Op ?Id) 
     (And (Group ?Domain ?Op ?Id) (Commutative ?Op ?Domain)) )


Relation RING

Arity: 5
Axioms:
(<=> (Ring ?Domain ?Plus-Op ?Zero-Id ?Mult-Op ?One-Id) 
     (And (Abelian-Group ?Domain ?Plus-Op ?Zero-Id) 
          (Semigroup ?Domain ?Mult-Op ?One-Id) 
          (Distributes ?Mult-Op ?Plus-Op ?Domain) ))


Relation COMMUTATIVE-RING

Arity: 5
Axioms:
(<=> (Commutative-Ring ?Domain ?Plus-Op ?Zero-Id ?Mult-Op ?One-Id) 
     (And (Abelian-Group ?Domain ?Plus-Op ?Zero-Id) 
          (Abelian-Semigroup ?Domain ?Mult-Op ?One-Id) 
          (Distributes ?Mult-Op ?Plus-Op ?Domain) ))


Relation INTEGRAL-DOMAIN

Arity: 5
Subrelation-Of: Commutative-ring
Axioms:
(<=> (Integral-Domain ?Domain ?Plus-Op ?Zero-Id ?Mult-Op ?One-Id) 
     (And (Commutative-Ring ?Domain
                            ?Plus-Op
                            ?Zero-Id
                            ?Mult-Op
                            ?One-Id)
          (Binary-Operator-On ?Mult-Op
                              (Kappa (?X) 
                                     (And (Instance-Of ?X ?Domain) 
                                          (/= ?X ?Zero-Id) )))))


Relation DIVISION-RING

Arity: 5
Subrelation-Of: Ring
Axioms:
(<=> (Division-Ring ?Domain ?Plus-Op ?Zero-Id ?Mult-Op ?One-Id) 
     (And (Ring ?Domain ?Plus-Op ?Zero-Id ?Mult-Op ?One-Id) 
          (Group (Kappa (?X) 
                        (And (Instance-Of ?X ?Domain) 
                             (/= ?X ?Zero-Id) ))
                 ?Mult-Op
                 ?One-Id)))


Relation FIELD

Arity: 5
Subrelation-Of: Division-ring
Axioms:
(<=> (Field ?Domain ?Plus-Op ?Zero-Id ?Mult-Op ?One-Id) 
     (And (Division-Ring ?Domain ?Plus-Op ?Zero-Id ?Mult-Op ?One-Id) 
          (Commutative ?Plus-Op ?Domain) ))


Relation PARTIAL-ORDER

Arity: 2
Axioms:
(<=> (Partial-Order ?Domain ?Rel) 
     (And (Irreflexive ?Rel ?Domain) 
          (Asymmetric ?Rel ?Domain) 
          (Transitive ?Rel ?Domain) ))


Relation LINEAR-ORDER

Arity: 2
Axioms:
(<=> (Linear-Order ?Domain ?Rel) 
     (And (Irreflexive ?Rel ?Domain) 
          (Asymmetric ?Rel ?Domain) 
          (Transitive ?Rel ?Domain) 
          (Trichotomizes ?Rel ?Domain) ))


Relation LINEAR-SPACE

Abstract linear or vector space of arbitrary dimension. Defines operations on vectors over a scalar field.
Arity: 7
Axioms:
(Nth-Domain Linear-Space 2 Class) 

(Nth-Domain Linear-Space 1 Class) 

(<=> (Linear-Space ?Scalar-Domain
                   ?Vector-Domain
                   ?S-Zero
                   ?S-One
                   ?V-Zero
                   ?Mult
                   ?Add)
     (And (Class ?Scalar-Domain) 
          (Class ?Vector-Domain) 
          (Field ?Scalar-Domain ?Add ?S-Zero ?Mult ?S-One) 
          (Abelian-Group ?Vector-Domain ?Add ?V-Zero) 
          (Forall (?S ?V) 
                  (=> (And (Instance-Of ?S ?Scalar-Domain) 
                           (Instance-Of ?V ?Vector-Domain) )
                      (Instance-Of (Value ?Mult ?S ?V) 
                                   ?Vector-Domain)))
          (Forall (?S ?V1 ?V2) 
                  (=> (And (Instance-Of ?S ?Scalar-Domain) 
                           (Instance-Of ?V1 ?Vector-Domain) 
                           (Instance-Of ?V2 ?Vector-Domain) )
                      (= (Value ?Mult ?S (Value ?Add ?V1 ?V2)) 
                         (Value ?Add
                                (Value ?Mult ?S ?V1) 
                                (Value ?Mult ?S ?V2) ))))
          (Forall (?S1 ?S2 ?V) 
                  (=> (And (Instance-Of ?S1 ?Scalar-Domain) 
                           (Instance-Of ?S2 ?Scalar-Domain) 
                           (Instance-Of ?V ?Vector-Domain) )
                      (= (Value ?Mult (Value ?Add ?S1 ?S2) ?V) 
                         (Value ?Add
                                (Value ?Mult ?S1 ?V) 
                                (Value ?Mult ?S2 ?V) ))))
          (Forall (?S1 ?S2 ?V) 
                  (=> (And (Instance-Of ?S1 ?Scalar-Domain) 
                           (Instance-Of ?S2 ?Scalar-Domain) 
                           (Instance-Of ?V ?Vector-Domain) )
                      (= (Value ?Mult (Value ?Mult ?S1 ?S2) ?V) 
                         (Value ?Mult ?S1 (Value ?Mult ?S2 ?V)) )))
          (Forall (?V) 
                  (=> (Instance-Of ?V ?Vector-Domain) 
                      (And (= (Value ?Mult ?S-One ?V) ?V) 
                           (= (Value ?Mult ?S-Zero ?V) ?V-Zero) )))))


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