Unification algorithm, Computer Engineering

Assignment Help:

Unification Algorithm:

Here if notice for instance that to unify two sentences as we must find a substitution that makes the two sentences the same. Furthermore remember there that we write V/T to signify in which we have substituted term T for variable V as read the "/" sign as "is substituted by". So now here our purpose of this algorithm will be to produce a substitution as a set of pairs V/T for a given pair of sentences. Here notice for instance example like the output for the pair of sentences as: 

 knows(john,X) 

knows(john, mary) 

will be: {X/mary}. Whether for the two sentences above involving jack and the function should fail as there was no way to unify the sentences. 

  • Thus if notice for describe instance the algorithm we use to simplify some functions it calls internally as.

  There the function isa_variable(x) checks where x is a variable. 

  • And another function isa_compound(x) checks whether x is a compound expression:

Here if we considered for instance that either a predicate or type a function or a connective usually contains subparts. Hence the subparts of a predicate or function are the arguments. Now there subparts of a connective are the things it connects. In fact we write  args(x)  for the subparts of compound expression x. So always remember that args(x) outputs a list: as the list of subparts.


Related Discussions:- Unification algorithm

Is it possible to create graph form spreadsheets, Is it possible to create ...

Is it possible to create graph form spreadsheets For example IF G5 > 100 THEN "Y" ELSE "N" -  It's also possible to create graphs and charts from spreadsheets (such as using

Harvard mark-I and the bug, The next important effort in the direction of d...

The next important effort in the direction of devising an electromechanical computer was made at Harvard University mutually sponsored by IBM and Department of UN Navy, Howard Aike

Risks by customer perspective in electronic payment system, What are the ri...

What are the risks by customer's perspective in Electronic Payment Systems? Risks within Electronic Payment Systems: Through the customer's perspective are as follows:

Role of internet in progressing sciences, Ask question #Minimum 100 wordswh...

Ask question #Minimum 100 wordswhat is the .role of internet in progressing sciences accepted#

Minimum and maximum algorithm, For this assignment, you will need to create...

For this assignment, you will need to create an ARM assembly language code routine that implements an algorithm to search through an array and find BOTH the minimum and maximum val

Static and dynamic hazard, what inputcombinations may those hazard take pla...

what inputcombinations may those hazard take place and how can they be eliminated? F1= AB'' + A''C + BC''D'' F2= AB + A''C''D + AB''D

Padovan string , A Padovan string P(n) for a natural number n is defined as...

A Padovan string P(n) for a natural number n is defined as: P(0) = ‘X’ P(1) = ‘Y’ P(2) = ‘Z’ P(n) = P(n-2) + P(n-3), n>2 where + denotes string concatenation. For a string of t

Researching strategy - artificial intelligence, Researching strategy - arti...

Researching strategy - artificial intelligence: If our search and researching strategy and swot of it is surety to find all types of hints such the solutions eventually, then

What is boundary scan, What is Boundary Scan?  Boundary scan is a board...

What is Boundary Scan?  Boundary scan is a board level design method that provides test access to the input and output pads of ICs on PCBs. Boundary scan changes the IO circuit

Digital electronics, what is Asynchronous Finite State Machines?

what is Asynchronous Finite State Machines?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd