Sufficient & Necessary Questions - - Question 14

If you climb mountains, you will not live to a ripe old age. But you will be bored unless you climb mountains. Theref...

mitchellgray May 7, 2024

Unless as sufficient, not necessary.

In the lecture video for this section, the speaker says that the word "unless" introduces the necessary condition, but in the question, the clause following "unless" is sufficient. Why?

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Emil-Kunkin May 16, 2024

I like to just replace the word uncles with the phrase "if not" rather than thinking about any complex formula. So here we would have you will be bored if you do not climb mountains.

In other words, if you do not climb you will be bored,

Or

If you are bored then you do not climb mountains.