1 G The Counterexample Method

1.G. The counterexample method

This is a demonstration of the

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How to prove that an argument is invalid.

This is a short lecture video explaining one of the most common and most powerful philosophical tools: the

The

Need to prove something is NOT always true? Use a

The first in a series of logic lectures. This lecture introduces states of affairs, propositions-claims,

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Proving a

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Counterexamples

What's a

This video demonstrates an example of a

2-1: Counterexamples and Conjectures

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Proving a statement false by a

Missing: 19 is also a prime number!

In this video, I cover a relatively simple