Could someone please explain this to me?

subject to one or more conditions or requirements being met; made or granted on certain terms.

engage in conversation.

reversed in position, order, direction, or tendency. Mathematics. (of a proportion) containing terms of which an increase in one results in a decrease in another. A term is said to be in inverse proportion to another term if it increases (or decreases) as the other decreases (or increases).

In logic and mathematics, contraposition refers to the inference of going from a conditional statement into its logically equivalent contrapositive, and an associated proof method known as proof by contraposition. The contrapositive of a statement has its antecedent and consequent inverted and flipped.

A biconditional statement is a combination of a conditional statement and its converse written in the if and only if form. Two line segments are congruent if and only if they are of equal length. ... A biconditional is true if and only if both the conditionals are true.

an example that opposes or contradicts an idea or theory.

c.

this is in order of each type of statement

hope this helped

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