Fundamental Digital Electronics/Combinational Gates

Following the Invert and the Morgan Laws logical gates can be combined to form new gates

Buffer

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    -----> 
Y = is NOT NOT A or Y = A
A B
0 0
1 1

NOT Gate

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    ----->  
Y = is NOT A
A B
0 1
1 0

NAND Gate

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    ----->  
Y = is NOT A
A B
0 1
1 0

NOR Gate

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    ----->  
Y = is NOT A
A B
0 1
1 0

XNOR Gate

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    ----->  
Y = is NOT A
A B
0 1
1 0