The Lighthouse Coach

Discrete Mathematics: The Computer Scientist's Toolkit — the free Preview

This page is the real first concept of Discrete Mathematics: The Computer Scientist's Toolkit (Signature Course No. 457) — not a trailer and not a video. You work through Concept 1, “Propositional Logic,” in a Socratic conversation with an AI coach: she asks before she teaches, builds on your own answers, and holds you to a mastery bar before the concept counts as done.

What this course teaches. Learn the mathematics underneath computing as working tools: translate statements into precise logic and back again, describe collections and connections with sets, relations, and functions, prove claims by direct argument, contrapositive, contradiction, and induction, count arrangements without listing them, and model networks as graphs — every claim checkable, every count derived and defended.

How the Preview works. Meet Sutton, our Head Coach, then request your free Preview key — it arrives by email in a moment. Pick your coach (Sutton, Alex, Caroline, Jack, Catherine, or Marcus), hear each one ask this concept’s first question, and begin. One concept, one five-minute conversation, coached exactly as enrolled learners meet it. When you’re ready for all 18 concepts, the full course is $195.

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