Identify and determine the validity of the converse, inverse, and contrapositive of a conditional statement and recognize the connection between a biconditional statement and a true conditional statement with a true converse

How Do You Write the Converse, Inverse, and Contrapositive of a Conditional Statement and Determine Their Truth Values?

A conditional statement is an if-then statement. For every conditional statement you can write three related statements, the converse, the inverse, and the contrapositive. The video shows how these are related.
How Do You Write a Biconditional Statement?

If you can write a true statement using "if and only if" , then you've got a biconditional. Learn more about biconditionals by watching the video.
What is a Biconditional Statement?

When a conditional statement and its converse are both true, you can write them as one statement called a biconditional statement. Learn more about this special kind of statement by following along with this tutorial.
How Do You Write an Indirect Proof?

This tutorial looks at using an indirect proof to show that an equilateral triangle cannot have a right angle.