18 Questions
What is a sentence in the context of knowledge representation language?
An assertion about the world
Which term refers to statements about the world that can be either true or false in propositional logic?
Propositions
What do propositional symbols most often represent?
Propositions
Which logical symbol in propositional logic inverses the truth value of a proposition?
Not (¬)
When are propositions connected with 'And (∧)' true?
When both propositions are true
For 'Or (∨)' to be true in propositional logic, what condition must be met?
At least one argument must be true
What do constant symbols represent in first-order logic?
Objects
In the sentence 'Person(Minerva)', what does the predicate symbol 'Person' represent?
A property
Which of the following is an example of a predicate symbol?
BelongsTo
How is the idea that Minerva is not a house expressed in first-order logic?
~House(Minerva)
In 'BelongsTo(Minerva, Gryffindor)', what do the two arguments represent?
People and houses
How does the succinctness of first-order logic compare to propositional logic for representing people—house assignments?
First-order logic requires fewer symbols.
What can be concluded from the proposition 'It is not true that both Harry and Ron passed the test'?
Either Harry or Ron passed the test
How can the proposition 'It is not true that Harry or Ron passed the test' be rephrased?
Harry did not pass the test and Ron did not pass the test
In the context of inference as a search problem, what does the 'Initial state' represent?
The starting knowledge base
What does the 'Resolution' inference rule state?
If one of two atomic propositions in an Or proposition is false, the other has to be true
What is the 'Transition model' in the context of inference as a search problem?
The new knowledge base after inference
What is the purpose of the 'Goal test' in the context of inference as a search problem?
To check whether the statement we are trying to prove is in the knowledge base
Test your knowledge on knowledge representation and propositional logic. Learn about sentences, propositions, propositional symbols, and logical connectives used in AI.
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