By the Age of 5

question 39

Multiple Choice

By the age of 5.5,Kanzi's comprehension of spoken English was equivalent to that of a _____-year-old human.

• A) 1
• B) 2
• C) 5
• D) 12

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Definitions:

Universal Generalization

A logical rule that states if something is true for all members of a class, it is true in general.

Quantifier Negation

A logical operation that reverses the scope of a quantifier in a statement, changing its overall truth value.

Existential Generalization

A logical operation that infers the existence of at least one individual meeting a specified condition from a statement concerning that individual.

Existential Instantiation

A rule of inference used in logic to deduce that there exists at least one instance of a particular property.