Determine if the argument is valid and justify.
1) Students must show up to the final or they will receive a grade deduction.
2) Charlie didn’t receive the grade deduction.
∴ Charlie showed up to the final.

Determine if the argument is valid and justify.

1) If a number is divisible by 6, it is divisible by 3.

2) The number is not divisible by 3.

∴ The number is not divisible by 6.

Identify the type of argument and come to a valid conclusion.

1) If I finish my homework, then I can go to the movies.

2) If I go to the movies, then I’ll get popcorn.

∴ 

Identify the type of argument and come to a valid conclusion.

1) If I forget to return the library book, I will get a late fine.

2) I forget to return the library book.

∴