[madrona]

XOR, “The Tricky One”: advanced Boolean logic for nontechnical founders (scribd)

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[Tloewald]

As an aside, I think it's logical OR that's tricky for non technical/math types since XOR more closely matches common usage.

[lmm]

What? No it doesn't. When people say "No bare ankles or shoulders", that doesn't mean it's ok if you bare both of them.

[philwelch]

"No food or drink" is a good one, so many possible misinterpretations between or vs. XOR, and how you scope the "not".

[bvdbijl]

I think he means when it is used like "coffee or tea?"

[lmm]

The answer to that when one wants both coffee and tea is "yes" rather than "no".