SOLID design principles

To understand what these principles are, I have kept them inline comments in the code. I will keep updating the code portions that will act as examples to quickly understand each of them.
The format of the code is as follows:
SOLID principles one line definitions
Pick each letter from SOLID, i.e., each principle and create separate namespace followed by partition line as a series of "=".

namespace SOLIDDesignPrinciples
{
    // S: Single responsibility principle (SRP)
    // A class/method should concentrate on one task - doing one thing only

    // O: Open/Close principle (OCP)
    // A component should be open for extension but close for change
    // Change a class behavior using inheritance/polymorphism

    // L: Liskov Substitution principle (LSP)
    // S is derived from B then object of B can be replaced with objects of S

    // I: Interface Segregation principle (ISP)
    // No client should be forced to use/depend on methods it doesn't use. Keep interfaces small and cohesive

    // D: Dependency Inversion principle (DIP)
    // A. High level modules should not depend upon low level modules. Both should depend upon abstractions.
    // B. Abstractions should not depend upon details. Details should depend upon abstractions.
    // Use lots of interfaces and abstractions
    class MainClass
    {
        public static void Main (string[] args)
        {
            Console.WriteLine ("Hello World!");
        }
    }
}

====================================================================
namespace SOLIDDesignPrinciples
{
    namespace SingleResponsibilityPrinciple
    {
        /// <summary>
        /// Single responsibility - this class will act as a single responsibility class.
        /// As an example, let it be an employee class. There can be many implementations to it,
        /// where in the class, in addition to keeping employee's basic info, we will calculate bonus, taxes etc.
        /// Note that this class becomes complex if we calculate information related to the basic information.
        /// Rather, we can have separate classes for each job.
        /// We will have two classes in order to follow SRP.
        /// </summary>
        public class EmployeeInformation
        {
            public int Salary { get; set; }

            public int Age { get; set; }

            public string Name { get; set; }

            public EmployeeInformation ()
            {
            }
        }
   
        public class Calculations
        {
            private EmployeeInformation empInfo;

            public EmployeeInformation EmployeeInformation
            { get; private set; }

            public Calculations (EmployeeInformation empInfo)
            {
                this.empInfo = empInfo;
            }

            public int Tax { get; private set; }

            public void CalculateTax ()
            {
                // Implementation here
            }

            public int Bonus { get; private set; }

            public void CalculateBonus (int percentage)
            {
                // Implementation here
            }
        }
    }
}
====================================================================