Data Objects

Question 1

What are logic Data Objects?

Answer 1

Data objects or terms are either:
numbers
atoms
variables
compound terms
lists.

Question 2

What is a number in logic programming?

Answer 2

A number may be either an integer or a floating point quantity.

Question 3

What is a atom in logic programming?

Answer 3

An atom is a constant that does not have a numerical value. It begins with a lowercase letter, or is quoted.

Question 4

What is a variable in logic programming?

Answer 4

A variable stands for a term that is to be determined. It begins with an uppercase letter or ‘_’

Question 5

What is a compound term in logic programming?

Answer 5

A compound term consists of a functor followed by a sequence argument terms in brackets.

Question 6

What is a list in logic programming?

Answer 6

A list is a structured data type made up of a sequence of terms enclosed in square brackets and separated by commas.

Question 7

What typing is prolog?

Answer 7

Prolog is an untyped language, it has tests such as atom/1 and number/1.

Question 8

What are the dangers of an untyped language?

Answer 8

Programs are not checked at compile time

Programs can go wrong at run time.