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## Homework Statement

Using a truth table and a karnaugh map, build a minimized circuit (using only AND and OR gates) to have an output

__if and only if__any two inputs A,B,C,D are true (let true = 1, false = 0).

## Homework Equations

karnaugh maps.

## The Attempt at a Solution

My only question about this is: will there be an output with more than two inputs being true (1) or will there only be an output when exclusively two inputs are true? Normally "if and only if" means if P then Q, and if Q then P. But, I'm tripping myself up with the language. Obviously, the two situations would have very different circuits.