Which of the following pairs illustrates symmetric entailment?

A. It occurs in an equative sentence.

B. It can be used to refer to different potential referents.

C. It never refers to different things or different persons.

D. It is not a referring expression.

A. Bill didn’t see a person entails Bill saw a boy.

B. Bill didn’t see a boy entails Bill didn’t see a person.

C. Bill didn’t see a boy entails Bill saw a person.

D. Bill didn’t see a person entails Bill didn’t see a boy.

A. Flying plane can be dangerous.

B. You’re so kind to me.

C. You’re that kind.

D. Visiting relatives can be boring.

A. Entailment

B. Paraphrase

C. Synonymy

D. Hyponymy

A. Same - different

B. Give - take

C. Conceal - reveal

D. Beautiful - ugly

A. Bachelors are innocent men.

B. Bachelors are not human beings.

C. Bachelors are never married.

D. Bachelors are male.

A. Analyticity is a sense property of predicates.

B. Contradiction is a sense relation between predicates.

C. Syntheticity is a sense property of a sentence.

D. Contradiction is a sense relation between sentences.