Logic programs, Computer Engineering

Assignment Help:

Logic Programs:

A subset of first order logic is "Logic programs". However logic program having a set of Horn clauses that are implication conjectures when there is a conjunction of literals that imply a single literal. Thus a logic program consists of implications that look like this example as:

\/X, Y, Z ( b1(X,Y) ^ b2(X)^ ... ^ bn(X,Y,Z) → h(X,Y))

So remember also that there in Prolog we have turn the implication around by which the implication sign points from left to right and then the head of the clause comes first. However we also assume universal quantification over all our literals but that can be removed.

Thus we can write Horn clauses as:

h(x,y) ← b1(X,Y) ^ b2(X) ^ ... ^ bn(X,Y,Z)

So there everybody understands what we are saying. And in fact we will adopt the convention of writing a conjunction of literals with a capital letter or a single literal with a lower case letter also. Although if we were interested in the first literal in the body of the above Horn clause or not interested in the others so then we could write as:

h(X,Y) ← b1, B

However we see that the conjunction of literals b2(X)^ ... ^ bn(X,Y,Z) has been replaced by B so we have utilised a comma instead of a sign.


Related Discussions:- Logic programs

Define the internal users of system, Q. Define the Internal Users of system...

Q. Define the Internal Users of system? Internal Users are employees of business for that an information system is built. Illustration are clerical and service staff, technic

Give the truth table of S-R and D-flipflops, Give the truth table of S-R an...

Give the truth table of S-R and D-flipflops. Ans: The Truth Table for S-R Flip-Flop is illustrated in Fig.(a) and truth table of D Flip-Flop is illustrated in Fig.(b)

Give an account of issue pertaining in c language, Give an account of the i...

Give an account of the issue pertaining to compilation of if statement in C language Control structures as if cause significant gap in between the PL domain and the execution d

Determine in detail about mp3 - mpeg-3, Determine in detail about MP3 (MPEG...

Determine in detail about MP3 (MPEG-3) MPEG-3 uses an audio compression technology; it compresses CD-quality sound by a factor of about 10 while retaining most of the quality f

State about the three-dimensional digitizers, State about the Three-dimensi...

State about the Three-dimensional digitizers Three-dimensional digitizers use sonic or electromagnetic transmissions to record positions. One electromagnet transmission method

2 way staircase switch-truth table logic equation & circuit, A staircase li...

A staircase light is controlled by two switches one at the top of the stairs and another at the bottom of stairs a. Make a truth table for this system. b. Write the lo

EME, How can i made Carnot engine

How can i made Carnot engine

Explain the term internet, Explain the term Internet. Internet: ...

Explain the term Internet. Internet: The Internet, an umbrella term covering countless network and services that comprise a super-network, is a global network of compute

What is assembler, What is Assembler An assembler is a program which ta...

What is Assembler An assembler is a program which takes as input a symbolic language program and produces output as its binary machine language equivalent. The input is known a

Explain list directive in assembly language, Q. Explain list directive in a...

Q. Explain list directive in assembly language? A list directive causes assembler to generate an annotated listing on printer, video screen, disk drive or any combination of th

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