Mix Vocab
Statement Terms
Conjectures and Counterexamples
Statements
100

Reasoning that uses examples, when you observe a pattern

Inductive reasoning?
100

two or more statements joined by and or or

compound statement

100

2, 22, 222, ______

2222

100

write in if-then form, "A five sided polygon is a pentagon."

If a polygon has five sides, then it is a pentagon.
200

a concluding statement

conjecture?

200
words used to join two or more statements

and and or?

200

8:30 am, 9:10 am, 9:50 am, ______

10:30 am

200

the three related conditional statements

inverse, converse and contrapositive

300

opposite of, false example

counterexample

300

a statement that has the opposite meaning, as well as an opposite truth value

negation

300

the product of two odd numbers

odd answer

300

Write converse and determine truth value, Bats are animals that can fly


If the animal can fly, then it is a bat. F - birds can fly

400

the truth values of a statement

either true or false

400

phrase immediately following if

hypothesis

400

1, 1/2, 1/4, 1/16 _____

1/32?

400

Write inverse and determine truth value, Bats are animals that can fly.

If the animal is not a bat, then it can not fly.  F - birds can fly

500

statement that can be written in if - then- form

conditional statement

500

formed by switching and negating both the hypothesis and conclusion

contrapositive

500

If n is prime number, then n + 1 is not prime.

True or False (give counterexample)

False, if n = 2, 2 + 1 = 3 (3 is prime)

500

Write contrapositive and determine truth value - Bats are animals that can fly.

If the animal cannot fly, then it is not a bat.  T given conditional is right, animal can't be a bat