Akonia

All previous American presidents were men.

Therefore, probably the next American president will be a man.

• Cogent

• Uncogent

All American presidents were television debaters.

Therefore, probably the next American president will be a television debater.

• Cogent

• Uncogent

Every time I see heavy black clouds it rains.

I see those clouds now,Therefore it will rain.

• Strong and cogent

• Strong and uncogent

Every person I have met this morning had brown eyes. Everyone in the world has brown eyes. The next person I meet will have brown eyes.

• Strong

• Cogent

• Weak

• Uncogent

Most boys like to play sports. Britney Spears is a boy. Therefore, Britney probably likes to play sports.

• Strong but cogent

• Weak uncogent

• Strong

• Uncogent

All American presidents were television debaters.

Therefore, probably the next American president will be a television debater.

• Cogent

• Uncogent

Strong +all premises true

• Weak

• Uncogent

• Cogent

• Strong