“______________________________” is a fancy name for an if-then statement.

The part of a conditional statement following the “then” is referred to as the statement’s ______________________________.

The ______________________________ of the statement “If an object is a die, then it has six sides” is “If an object does not have six sides, then it is a not a die.”

The statement “If the corresponding angles formed are congruent, then the two lines cut by a transversal are parallel” is the ______________________________ of “If two lines cut by a transversal are parallel, then the corresponding angles formed are congruent.”

A bat would be a(n) ______________________________ for the statement “If an animal has wings, then it is a bird. That’s because a bat has wings, but it is not a bird.”

Any number that is two times an integer plus one is an odd number. Sixty-seven is two times the integer thirty-three plus one. Therefore sixty-seven is an odd number. This is an example of ______________________________.

The ________________________________________ below shows the relationship among the set of animals, the set of animals that are mammals, and the set of animals that lay eggs.

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We call a picture that shows the logical relationships among a number of sets a(n) ______________________________.

In the statement, “If an animal has a backbone, then the animal is a vertebrate,” the clause “animal has a backbone” is the statement’s ______________________________.

You create a conditional statement’s ____________________ when you negate its hypothesis and conclusion.