Mathematics

Joanna

15 July, 22:44

Which argument is valid?

If Donna feels good about herself, then she has time to exercise.

If Donna feels good about herself, then she is productive.

If Donna has time to exercise, then she is productive.

Ben runs 3 mi a day.

Kyle runs more miles per day than Ben does.

Therefore, Kyle runs at least 4 mi a day.

If Maria goes to a concert, then Jenny goes with her.

If Jenny goes to a concert, then Andrew goes with her.

Therefore, if Maria goes to a concert, then Andrew goes with her.

Some dogs have curly hair.

A collie is a dog.

Therefore, a collie has curly hair.