<ul><li>The Liskov Substitution Principle (LSP) is a foundational concept in object-oriented design.</li><li>LSP states that objects of a superclass should be replaceable with objects of a subclass without affecting the correctness of the program.</li><li>To adhere to LSP, subclasses must adhere to the behavior defined by their base classes and should not override or weaken any functionality of the base class.</li><li>Following LSP leads to improved reusability, ease of testing, and enhanced maintenance of code.</li></ul>

SOLID: The Liskov Substitution Principle (LSP) in C#

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