The correct answer is: A. First-order definite clause are similar to propositional forward chaining
First-order definite clauses are similar to propositional forward chaining in that they both use a rule-based approach to reasoning. However, first-order definite clauses are more expressive than propositional forward chaining, as they can represent relationships between objects.
Propositional forward chaining is a type of reasoning that uses a set of rules to infer new facts from known facts. The rules are typically in the form of “if-then” statements, such as “if it is raining, then the ground is wet.” The system starts with a set of known facts, and then applies the rules to infer new facts. For example, if the system knows that it is raining, it can infer that the ground is wet.
First-order definite clauses are a more expressive form of logic than propositional logic. First-order logic can represent relationships between objects, while propositional logic can only represent facts about individual objects. For example, the first-order definite clause “every man is mortal” can be used to represent the fact that all men are mortal. The propositional equivalent of this clause would be “if x is a man, then x is mortal.”
In conclusion, first-order definite clauses are similar to propositional forward chaining in that they both use a rule-based approach to reasoning. However, first-order definite clauses are more expressive than propositional forward chaining, as they can represent relationships between objects.
Here is a brief explanation of each option:
- Option A: First-order definite clause are similar to propositional forward chaining. This is correct, as both use a rule-based approach to reasoning.
- Option B: First-order definite clause are mismatch to propositional forward chaining. This is incorrect, as both are similar in that they both use a rule-based approach to reasoning.
- Option C: All of the mentioned. This is incorrect, as only option A is correct.
- Option D: None of the mentioned. This is incorrect, as option A is correct.