D = ABC + ABC + ABC + ABC + ABC + ABC + ABC
E = ABC + ABC + ABC + ABC + ABC + ABC + ABC
F = ABC + ABC + ABC + ABC + ABC + ABC + ABC
input output A B C D E F 0 0 0 1 1 1 0 0 1 0 1 1 0 1 0 1 1 1 0 1 1 1 0 1 1 0 0 1 1 1 1 0 1 1 1 0 1 1 0 1 1 1 1 1 1 1 1 1 What would the circuit diagram for this be?
(We could do it mechanically with 7 AND gates and 1 OR gate for each output (24 gates), but can we do better? For example, notice that E is always 1 when A is 1 (as well as 3 other times) and that F is always 1 when A is 0 (as well as 3 other times.)