Natural Deduction·Capstone·Lesson 5 of 5

Capstone: Building and Defending a Complete Deductive Argument

An integrative lesson that asks students to move through the full cycle of deductive evaluation: read an argument in ordinary language, symbolize it, classify its validity, either prove it or refute it with a counterexample, and then explain the result in plain English.

← Diagnosing Invalid Proof Steps Natural Deduction: Validity and Formal ProofEnd of unit →

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In this lesson · 4 sections · 1 worked example · 2 practice activities

The full cycle of deductive evaluation
A working pattern for integrative cases
How integration failures look
What this lesson is testing

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