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A Karnaugh map (KM or K-map) is a diagram that can be used to simplify a Boolean algebra expression. Maurice Karnaugh introduced it in 1953[1][2] as a refinement of Edward W. Veitch's 1952 Veitch chart,[3][4] which itself was a rediscovery of Allan Marquand's 1881 logical diagram[5][6] (aka. Marquand diagram[4]). It is also useful for understanding logic circuits.[4] Karnaugh maps are also known as Marquand–Veitch diagrams,[4] Svoboda charts[7] -(albeit only rarely)- and Karnaugh–Veitch maps (KV maps).
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