Deductive Reasoning

Syllogism:

If Fish live in the sea

And if a shark is a fish

therefore sharks live in the sea

Modus Ponens:

If I am wearing a sweater I am Warm

I am Warm

Therefore I am wearing a sweater

Modus Tollens

If I am not wearing a sweater I am not hot

I am not hot

Therefore I am not wearing a sweater

 I do not really know if I arranged all the if, thens, and therefores right and pretty much the whole arrangement