Discrete mathematics courses tend to cover a wide variety of topics such as logic and truth tables, proof techniques, counting and probability, set theory, algorithms, and graph theory. The lessons below review several of these important ideas.

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## Propositional logic

- Truth tables for “not”, “and”, “or” (negation, conjunction, disjunction)
- Truth tables for “implies” and “if and only if” (the conditional and the biconditional)
- Analyzing compound propositions with truth tables
- Negating the conditional