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How to invert three signals with only two NOT gates (and *no* XOR gates): Part 1

5/14/2006 05:00 PM EDT
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94928
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re: How to invert three signals with only two NOT gates (and *no* XOR gates): Part 1
94928   6/23/2013 2:43:58 AM
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Here is an equally interesting 'opposite' problem: Show that it is NOT possible to invert two variables A and B using only ONE not gate and an unlimited number of AND and OR gates. The solution would, of course, be fundamentally different since what is required is NOT a circuit design, but a proof of non-existence of a circuit meeting some specification.

subhasp
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re: How to invert three signals with only two NOT gates (and *no* XOR gates): Part 1
subhasp   11/11/2008 8:49:00 PM
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NAND and Nor are universal gates. we can have NOT gate using it!!what do you say?

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