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Any maths people here? Im trying to figure out if there is a way to write a formula -

submitted by i_scream_trucks to AskUpgoat 3 monthsJan 30, 2025 06:17:13 ago (+1/-0)     (AskUpgoat)

a+b = not c
b+c = not a
c+a = not b

dont know if im making any sense. trying to analogise some shit.


9 comments block

Not much sense - I think you are trying to ask how to write (combine?) three logical notions. While programming notation may be better there, I'm thinking best just keep to English; I think you're trying to say:

1. If A and B are both true, C must be false

2. If B and C are both true, A must be false

3. If C and A are both true, B must be false

Note how those statements are only the one-way version. If that is all, they are equivalent to "not (A and B and C)", i.e. A, B and C are never all true together. If you don't like the brackets, it expands to become "not A or not B or not C".

That limits them to 2 being true at most, but also admits possibly 1 or none being true. If you meant those statements to be two-way, in effect generating three more logical claims, it limits them further such that exactly 2 must be true at all times.

I can't imagine a more concise logical statement for that than listing the three possibilities, i.e. "(A and B and not C) or (B and C and not A) or (C and A and not B)".