unification 0.1.15

An implementation of logical first-order unification for logic programming in dart.

Unification

A library providing implementations of first-order logical unification for dart and flutter.

Getting started

Add the dependency to your pubspec.yaml file:

dependencies:
  unification: #latest version

Add the import statement to your source files:

import 'package:unification/unification.dart';

Or, give it a try and run the example:

dart ./example/main.dart 

Modify the example to test more less simple tasks!

Example:

  import "package:unification/unification.dart";
  
 
  //
   Termtype<String, Id> term1 = Term(Id(1, 1), [
    Var(
      Id(1, 2),
    ),
    Var(
      Id(1, 2),
    ),
  ]);
  //
  Termtype<String, Id> term2 = Term(Id(2, 1), [
    Var(
      Id(2, 2),
    ),
    Term(Id(2, 3), [
      Var(
        Id(2, 2),
      ),
    ]),
  ]);

  UnificationR<String, Id> u = UnificationR<String, Id>();
  
  var mgu = u.unify(term1, term2, []);
  var unifiedTerm1 = u.subsitute(mgu, term1);
  var unifiedTerm2 = u.subsitute(mgu, term2);
  
  print('mgu      > ' + mgu.toString());
  print('term 1   > ' + unifiedTerm1.toString());
  print('term 2   > ' + unifiedTerm2.toString());

Read more about unification in logic on Wikipedia.