Free 0 learners Rev. 2026-10-07 0

A free introduction to reasoning well. Seven short levels cover what an argument is, the difference between valid and sound, the core deductive forms (modus ponens and modus tollens) and the mistakes that imitate them, syllogisms, evidence and induction, common fallacies, and how to put it all to work in a real discussion.

It pairs naturally with Universal Humanism: the same tools are used to build, test and debate the framework. No background needed.

Levels

  1. 🔒 1. What an Argument Is 5-question quiz
  2. 🔒 2. Valid, Sound and True 5-question quiz
  3. 🔒 3. Modus Ponens, Modus Tollens and Their Imposters 6-question quiz
  4. 🔒 4. Syllogisms and Other Deductive Patterns 5-question quiz
  5. 🔒 5. Evidence and Induction 5-question quiz
  6. 🔒 6. Common Fallacies 6-question quiz
  7. 🔒 7. Reasoning Well Together 5-question quiz

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