Six interactive lessons on what arguments are, how reasoning works, and how to evaluate any claim with clarity and confidence.
Each lesson builds on the last. Work through them in order for the best experience.
Distinguish arguments from mere opinions. Identify claims (conclusions) and the reasons (premises) that support them.
Understand how deductive arguments guarantee their conclusions, and what makes them valid or sound.
Explore how inductive arguments work with probability, and why evidence always matters.
The full toolkit: soundness for deductive, strength and cogency for inductive. How sure can we really be?
Evidence is not certainty. Opinion is not argument. Correlation is not causation. Spot the traps before they fool you.
Every argument rests on hidden assumptions, definitions, and values. Learn to surface them charitably.