# How to Argue - Philosophical Reasoning: Crash Course Philosophy #2

## By Crash Course

Before we dive into the big questions of philosophy, you need to know how to argue properly. We'll start with an overview of deductive reasoning and rational arguments.

# Circular Reasoning

This lesson is about a logical fallacy called circular reasoning. A circle argument refers to itself as evidence of truth

# Critical Reasoning - Denying an Assumption Using Additional Evidence

## By KnewtonGMAT

This video analyzes assumptions that lead to the conclusions in an argument. It shows how adding information can challenge assumptions.

# Using Reasoning and Evidence to Support Claims

## By Shawn Rusich

Learn how to effectively identify what a claim is and how authors use reasoning and evidence to support arguments.

# Critical Reasoning - Affirming Assumptions Using Additional Evidence

## By KnewtonGMAT

This video identifies two assumptions in a text and then demonstrates which evidence affirms those assumptions.

# Reasoning with Equations and Inequalities

Sal solves the equation 4x^2+40x-300=0 by completing the square.265