unification

unification is a concrete implementation of logical first-order unification and library to apply a first-order unification procedure unify given by the library on two terms of Termtype given by the library.

A solution of a unification problem is a substitution, that is, a mapping assigning a symbolic value to each variable of the problem's expressions. The unification algorithm reports unsolvability for a given problem or computes a complete, and minimal singleton substitution set containing the so-called most general unifier, that is, a set covering all its solutions, and containing no redundant members.

Example:

import "package:tailcalls/tailcalls.dart";
import "package:unification/unification.dart";

var test = unify(
      new List()
        ..add(
          new Tupl(
            new Term("b0", [new Term("b1", []),new Term("b2", [])]),
            new Term("b0", [new Term("b1", []),new Term("b2", [])]),
          ),
        ),
    ).result();
var mgu = test;
print(mgu.toString());

Read more about unification in logic on Wikipedia.

Libraries

unification
unification2
unification3
utils