Necessary & Sufficient Conditions
Critical Thinking Training Course
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4m 4s
The word, IF, in the English language is ambiguous. 'Marcus will go to the party if Stephanie goes'. Surely that means that whether Marcus goes to the party depends on if Stephanie is going, and if she doesn't go, Marcus won't? However, Marcus will also go to the party IF Marianne goes. That's why it's important to make clear whether we're talking about necessary or sufficient conditions.
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