Exam 5: Categorical Logic: Statements

Name the form of the following categorical statement (A, E, I, or O); identify the subject term and predicate term; and state the quantity and quality: No coconut crabs are hippopotami.

Two statements are contradictories if

A universal statement is one that is universally accepted as

Put this statement into standard form: Most horses at the Wilderness Park Stables are easy to ride.

On the Traditional Square of Opposition, if "All unicorns are white horses" is

Put this statement into standard form: At least one person appreciates my talent!

"Something's a mammal only if it's a warm-blooded animal" is a stylistic variant of "All mammals are warm-blooded animals."

Two standard-form categorical statements are contradictories if they cannot have the same truth value.

A particular statement is a statement about a specific individual or thing such as Tom or Tom's car.

The complement of a class X is the class containing all things that are not members of X.

If "No Martians are Venusians" is true, what can be inferred about "All Venusians are Martians"?

The subject term of "All students who skip classes and party on weekends are students who receive low grades" is

The quality of an A statement is

Name the logical relation that holds between the two categorical statements that follow. In the case of subalternation, indicate which statement is the superaltern and which is the subaltern. If the pair does not exemplify any of the logical relations we have discussed, simply write "None." All people who seek truth are philosophers. / No people who seek truth are nonphilosophers.

The converse of a standard-form categorical statement is formed by

If "No elephants are non-pachyderms" is true, then what can we infer about "Some non-pachyderms are non-elephants"?

A necessary truth is one that cannot be false under any possible circumstances.

Name the form of the following categorical statement (A, E, I, or O); identify the subject term and predicate term; and state the quantity and quality: All lab-created rubies are clear red gems.

If "All non-reptiles are non-turtles" is true, what can be inferred about "Some reptiles are not non-turtles"?

Put this statement into standard form: Corporate lawyers are not ethical people.