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2 cards from this section. Quick, good the night before a test.
Write down the structure of Modus Tollens using letters.
Remember the key components are a condition and the negation of the result.
Identify the conclusion from the argument: 'If it’s sunny (P), then we can go outside (Q). It’s not possible to go outside (¬Q). What can we infer about it being sunny (P)?
Consider what not being able to go outside implies about the weather.
If P implies Q, and not Q is true, what can we conclude about P?
Think about what the negation of Q signifies regarding P.
True or False: Modus Tollens allows for deriving conclusions from positive conditions.
Focus on the structure of Modus Tollens.
Create a complex argument using Modus Tollens and illustrate its validation step-by-step.
Draft the argument focusing on where the logic connects.
Analyze and correct the fallacy: 'If the sun is shining (P), the car is warm (Q). The car is not warm (¬Q), therefore the sun is not shining (¬P).' Is this a valid conclusion?
Consider external conditions that could impact the premises.
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