Question: Write a Prolog rule for the predicate - elimdup(L1,L2), which eliminates duplicate elements from a list. L1 is a given list of elements, and L2

Write a Prolog rule for the predicate

- elimdup(L1,L2), which eliminates duplicate elements from a list. L1 is a given list of elements, and L2 is used to store the result.

Examples

?- elimdup([1, 3, 5, 3],R).

yes, R = [1, 3, 5]

?- elimdup([1, 3, 5], R).

yes, R = [1, 3, 5]

?- elimdup([a, b, a, c, b], R).

yes, R = [a, b, c]

?- elimdup([a, b, a, c, b, a], R).

yes, R = [a, b, c]

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Q:

PROLOG without any pre-defined predicates! Write a Prolog rule for the predicate elimdup(L1,L2), which eliminates duplicate elements from a list. L1 is a given list of elements, and L2 is used to...

Q:

PROLOG without any pre-defined predicates! Write a Prolog rule for the predicate elimdup(L1,L2), which eliminates duplicate elements from a list. L1 is a given list of elements, and L2 is used to...

Q:

Let r and s be solutions to the quadratic equation x 2 b x + c = 0. For n N, define d0 = 0 d1 = r s dn = b dn1 c dn2 (n 2) Prove that dn = r n s n for all n N. [4 marks] (b) Recall that a commutative...

Q:

Question 3 [13] (a) Write a procedure filter (L,PredName, L1,L2) that accepts a list L and returns two lists L1 and L2, where L1 contains all elements in L for which PredName(x) fails, and L2...

Q:

I have an assignment in PROLOG that I am stuck with. Question 1 Consider the following database. mother(lisa, abe). father(tony, abe). mother(lisa, sarah). father(tony, sarah). mother(hannah, john)....

Q:

Objective: To program using the logic programming paradigm. Assignment: Download and install SWI-Prolog from http://www.swi-prolog.org/ Research Prolog features and programming style, then answer the...

Q:

Objective: To program using the logic programming paradigm. Assignment: Download and install SWI-Prolog from http://www.swi-prolog.org/ Research Prolog features and programming style, then answer the...

Q:

Programming Language Concepts Objective: To program using the logic programming paradigm. Assignment: Download and install SWI-Prolog from http://www.swi-prolog.org/ Research Prolog features and...

Q:

In a distributed electronic conference application each participant has a replica of a shared whiteboard. Only one user at a time may write to the whiteboard, after which the user's update is...

Q:

Briefly describe ASCII and Unicode and draw attention to any relationship between them. [3 marks] (b) Briefly explain what a Reader is in the context of reading characters from data. [3 marks] A...

Q:

A diatomic gas molecule consists of two atoms of mass m separated by a fixed distance d rotating about an axis as indicated in Fig. 39-32. Assuming that its angular momentum is quantized as in the...

Q:

In the last decade, society in general and the judicial system in particular have altered their opinions on the seriousness of drunken driving. In most jurisdictions, driving an automobile with a...

Q:

What is the purpose of economic sanctions? What problems do they pose for the nation initiating the sanctions? When are sanctions most successful in achieving their goals?

Q:

Seved Help 14 Wisconsin Snowmobile Corp. is considering a switch to level production Cost efficiencies would occur under level production, and aftertax costs would decline by $31,500, but inventory...

Q:

8. There is interest in measuring change (in knowledge, behavior, skill, etc.) from pretraining levels or in comparing two or more different programs.

Q:

6. The cost of the training creates a need to show that it works.

Q:

3. To evaluate the proportion of money spent on training development, administration, and evaluation as well as to compare monies spent on training for different groups of employees (exempt versus...