an example that proves that a conjecture or statement is false
counterexample
statement believed to be true
conjecture
statement that can be written in the form “if p, then q” where p is the hypothesis of the statement and q is the conclusion
conditional statement
3 statements that are related to a conditional statement
converse, inverse, contra positive
if a conditional statement and its converse are both true, they can be combined into
biconditional statement
statement that descibes a mathematical object