Which of the following arguments (i.e., logical calculations) reach logically valid conclusions, and which do not? Which argument utilizes the logical rule of modus ponens?

A. h SENT BOOK

B. h SENT b

C. h SEND b k

D. h SEND BOOK m

A. d READ b j READ m

B. d j READ b m

C. d READ b & j READ m

D. None of the above

A. "My boss is busy at the moment" is the contradiction of "My boss is available at the moment."

B. "My boss is busy at the moment" is the contradictory of "My boss is available at the moment."

C. "My boss is busy at the moment" is the contradictory of "My boss is not available at the moment."

D. None of the above

A. cs LIVE c

B. c LIVE c

C. CS live C

D. None of the above

A. Meanings

B. Language system

C. Senses

D. Utterances

A. The propositional connective & corresponds roughly to if . . . then

B. The propositional connective -> corresponds roughly to if . . . then

C. The propositional connective -> corresponds roughly to and

D. The propositional connective & corresponds roughly to and

A. Afternoon

B. Carpenter

C. Vision

D. Window