Identify AND–OR–INVERT (AOI) implementation in logic design: outputs of two or more AND gates are combined by an OR gate, and the OR output is then inverted to produce X = (sum of products)'. Decide whether this described structure qualifies as an AOI network.

Introduction / Context:
AND–OR–INVERT (AOI) logic is a standard gate-level realization used in digital electronics and integrated circuit libraries. It constructs a function as a sum of products using an AND stage feeding an OR stage, followed by a final inversion. Recognizing the structural pattern helps in technology mapping, reading schematics, and simplifying expressions efficiently.

Given Data / Assumptions:

• The described network forms product terms using AND gates.
• Those product terms are combined by a single OR gate.
• The OR output is passed through one inverter to generate the final output X.
• No unusual encoding or extra feedback is involved.

Concept / Approach:
By definition, AOI implements X = (AB + CD + …)' where the inner portion is the OR of multiple ANDed terms and the final apostrophe denotes inversion. This is directly the complement of a sum-of-products, often convenient because many logic families and standard cells provide highly optimized AOI and OAI gates to reduce area and delay.

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