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I'm having a very hard time simplifying this:

A!B!C+ABC+!A!BC+!AB!C

The objective here is to simplify the equation until it can be expressed in "AND"'s "OR"'s and "NOT"'s. I have to create an integrated circuit for the simplified expression using only those 3 gates in Logisim.

This is as far as I've gone:

A(!B!C+BC)+!A!BC+!AB!C

A+!A!BC+!AB!C

A+!BC+B!C

I'm not sure if this is right

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    It might help if you said what $!A$ means. At least I don't know, and at first thought it might mean "not", but the paragraph afterward suggests it isn't "not". Is it mayby xor or something binary which isn't typically used in math, but only in circuit design?2012-11-10

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