wow 5/5. im shutting my computer right now and am going to enjoy this happiness before it goes away.

Valid conclusion: Only dogs play outside. Blanche plays outside. Therefore, Blanche is a dog.

Invalid conclusion: All dogs play outside. Blanche plays outside. Therefore, Blanche is a dog.

In the invalid conclusion, Blanche could be a part of another group since it does not explicitly state that you have to be a dog to play outside. She could be human, a cat, etc.

On question 5, why could I not say, there is a world where, if the record doesn't sell well, you still can be famous?

finally got this one right!! been hitting a huge wall.

@dlpaltiel770309 do you have another link? this one doesn't work anymore

I drew the conclusion that it would be invalid if Kuman arrived late because it is not implied that he is a "student." Would that be invalid?