That Which is Necessary is Not Always Sufficient

What's the difference?

Necessity & Sufficiency:

In logic and mathematics, necessity and sufficiency are terms used to describe a conditional or implicational relationship between two statements.

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Necessity — The condition must be met the achieve the outcome
Sufficient — The condition alone is enough to achieve the outcome

That which is necessary is not always sufficient.
That which is sufficient is not always necessary.

Knowing the difference will help you better understand the world around you.

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To be able to put ‘Dr.’ in front of my name, I can do so by earning a PhD.

This is sufficient to achieve the outcome, but it is not necessary.

I could instead earn an MD and achieve the same outcome.

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To be able to put ‘Dr.’ in front of my name, I must attend university.

This is necessary to achieve the outcome, but it is not sufficient.

Not every degree grants this title.

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Hope you enjoyed this one. Looking forward to another guest post next weekend!

Also, I’ve been testing Monday posts the past couple weeks and looking to collect some feedback on the posting schedule:

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I’m also looking into the idea of a twice-weekly posting schedule with one free post and one paid post per week to make upgrading more valuable.

Is this something you’d be interested in?
Let me know!