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Logic & Reasoning

Logic & Reasoning

A practical path from the anatomy of an argument to symbolic logic, probability, causal inference, disagreement, and decisions under uncertainty. The emphasis is not memorizing fallacy names; it is learning repeatable ways to test claims, expose assumptions, build counterexamples, and revise beliefs.

Made for Anyone who wants to reason more clearly in study, work, public life, or technical problem-solving. No prior philosophy or mathematics is required.

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Curriculum

Lessons build in sequence, but you can revisit any topic whenever you need it.

  1. 01

    Course 1

    Logic & Reasoning

    Begin with ordinary arguments, add just enough formal notation to make structure visible, then apply the tools to evidence, uncertainty, causal claims, disagreement, and a complete argument audit.

    12 lessons
    01 Argument Anatomy 3 lessons
    1. 01 Claims, Premises, Conclusions, and Warrants
    2. 02 Validity, Soundness, Strength, and Cogency
    3. 03 Argument Mapping and Hidden Assumptions
    02 Formal Tools 3 lessons
    1. 01 Propositional Logic as a Translation Tool
    2. 02 Truth Tables, Validity, and Countermodels
    3. 03 Quantifiers, Domains, and Counterexamples
    03 Evidence & Uncertainty 3 lessons
    1. 01 Induction, Abduction, and Causal Claims
    2. 02 Probability, Base Rates, and Bayesian Updating
    3. 03 Measurement, Sampling, and Statistical Claims
    04 Reasoning in the Wild 3 lessons
    1. 01 Fallacies, Cognitive Biases, and Steelmanning
    2. 02 Sources, Lateral Reading, and Triangulation
    3. 03 Capstone: Build a Decision-Ready Reasoning Brief