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All 5 lessons in Logic II

  1. 1. What Counts as a Statement?

    Distinguish propositions from non-propositions, assign truth values, and tell simple from compound statements and their connectives.

  2. 2. The Three Core Operations

    Form and evaluate the negation, conjunction, and disjunction of propositions, and combine operations step by step.

  3. 3. Building and Reading Truth Tables

    Set up truth-table frameworks, construct tables for the core operations and complex expressions, and identify tautologies and contradictions.

  4. 4. The Conditional and Its Family

    Build the truth table for the conditional, form the converse, inverse and contrapositive, and verify logical equivalence with the contrapositive.

  5. 5. Indirect Proof and Argument Chains

    Use proof by contradiction, apply the argument chain rule, recognise Modus Ponens and Modus Tollens, and integrate the whole unit in WAEC-style problems.

Unit code SSA12