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Foundational

Logical Reasoning

Deduction from the ground up — truth and lies, if-then statements, and how sets overlap.

3 Lessons16 questions
Course progress0%

  1. Truth and Lies

    Knights always tell the truth, knaves always lie. Learn to corner a contradiction.

    6 questions6 min

    Truth and Lies

    Start

  2. If-Then Thinking

    Conditional statements, the contrapositive, and the trap of reversing an arrow.

    5 questions7 min

  3. Sets and Overlaps

    Count without double counting, and read what an overlap really forces.

    5 questions7 min