Write a program in Prolog to find and print prime numbers between 50 to 200.

Write a program in LISP to calculate the area of the circle, whose radius is given by the user. Write proper comments to enhance readability of your code.

If the propositions are described as follows: (8 Marks)
P : He needs a doctor
S : He is Sick
Q : He needs a lawyer
U : He is injured
R : He has an accident
Then represent the following formulas in English :
(i) (P ˄ Q) → R
(ii) (P ˄ Q) ↔ (S ˄ U)

What is the difference between Knowledge and Intelligence? Enumerate the various knowledge representation schemes, giving a brief description for each scheme.

Define fuzzy inference system? What are the main steps in Fuzzy inference system? Make an inference system for food management system.

What are Expert Systems? Briefly discuss the various categories of software tools, used for the development of expert systems.

What is Means-Ends Analysis? How is Means-Ends Analysis used as a problem solving technique?

What is Prenex Normal Form (PNF). Write the steps to transform a Well-Formed Formula (WFF) into PNF. Transform Ɐx(Q(x) →(ⱻx) R(x, y)).