Propositional Logic·Rules·Lesson 4 of 6

Truth Tables, Equivalence, and Validity

Introduces truth tables as a decision procedure for propositional validity, establishes the central logical equivalences, and teaches students to use truth tables to diagnose why an argument is valid or invalid.

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In this lesson · 7 sections · 5 worked examples · 2 practice activities

Truth functionality and the decision procedure
Building a truth table step by step
Tautology, contradiction, and contingency
The central equivalences you should memorize
…and 3 more

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