Are the following a tautology, contingency or a contradiction in symbolic logic?--->?

Question

Double Negation; Duplication; Commutation; Association; Contraposition; DeMorgan's; BiConditional Exchange; Conditional Exchange; Distribution; Exportation

Answer 1

I just love people who attempt to oppress people with their seeming command of big words they could not define on a slow day flipping burgers.

(Your first word should have been "IS").

PS...Fries will never be the same without tallow/lard.

Answer 2

Conditional ----->

Biconditional <----->

Answer 3

I would think they would all be tautologies. They are basic rules of logic, and basic rules of logic have to be tautologies.

Heliocentrist, these aren't "big words." This is the philosophy section and these are basic ideas in logic. Instead of picking nits about the grammar (and actually "are" is correct, since there is more than one of "the following"), you should make an effort to understand the basic ideas of the category you are in, so you won't feel "oppressed."