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# What does these symbols mean in logic gates?

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1. AvB = A AND B?
¬(AvB) = NOT (A AND B)?
A^B = A OR B?
¬(AvB) v (A^B) = NOT(A AND B) AND (A OR B)

Is this right?
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2. Not quite: ∧ is logical conjunction (AND) whilst ∨ is logical disjunction (OR). You're right, though, that ¬ is logical negation (NOT), alternatively denoted as a bar above.
3. AND and OR are the wrong way round but besides that you're good to go.
4. (Original post by Flame Alchemist)
Not quite: ∧ is logical conjunction (AND) whilst ∨ is logical disjunction (OR). You're right, though, that ¬ is logical negation (NOT), alternatively denoted as a bar above.
I learned it as a line above, myself.

Then again, I've written more logic in C than I have on paper, so I'm probably more used to !, && and ||.
5. (Original post by Tootles)
I learned it as a line above, myself.

Then again, I've written more logic in C than I have on paper, so I'm probably more used to !, && and ||.
Me too, actually; I've always preferred that as a more compact grouping. Luckily assessments don't seem to care, considering the 'preferred' notation changes between fields
6. (Original post by Flame Alchemist)
Me too, actually; I've always preferred that as a more compact grouping. Luckily assessments don't seem to care, considering the 'preferred' notation changes between fields
Yep. I learned boolean algebra when studying electronics, so the notation I know natively is (IIRC) a cross for OR and a circle for AND. I prefer diagrams though; there's less arguing about thouse
7. Alright thanks guys!!

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