---
title: "Discussion on \"Learn the true polymorphism\" | Hashnode"
description: "Discussion on \"Learn the true polymorphism\". Polymorphism is the ability of an object to take on many forms. It is an everyday word in Object-Oriented Programming (OOP). We have classes that inherit from other classes. We can treat an instance of a child class as an instance of the parent class..."
url: "https://hashnode.com/posts/learn-the-true-polymorphism/5f8bcf5cd7dc0b17a97a341f"
---

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# [Learn the true polymorphism](https://blog.jayjaydev.com/learn-the-true-polymorphism?utm_source=hashnode&utm_medium=feed)

Polymorphism is the ability of an object to take on many forms. It is an everyday word in Object-Oriented Programming (OOP). We have classes that inherit from other classes. We can treat an instance of a child class as an instance of the parent class...

Oct 18, 2020 · 6 min read · blog.jayjaydev.com  
Updated Nov 9, 2020  
Read the article

-   [#oop](https://hashnode.com/tag/oop)
-   [#lisp](https://hashnode.com/tag/lisp)
-   [#2articles1week](https://hashnode.com/tag/2articles1week)

## Written by

[Jose Jorge Rodriguez](https://hashnode.com/@josejorgers)

@josejorgers · Havana, Cuba

  
[View profile](https://hashnode.com/@josejorgers)

Computer scientist, teacher, researcher and developer

Computer Scientist. Researching on Artificial Intelligence and working as a Software Engineer. Cuban based in Spain.

## Responses 1

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[Cristian Molina](https://hashnode.com/@megatux)

[Dec 16, 2020](https://hashnode.com/posts/learn-the-true-polymorphism/5f8bcf5cd7dc0b17a97a341f/comment/5fd9ec3220d7fe27bf266071)

Hey, nice article! Came from reddit where saw some bashing. I'll read the rest of the series. I remember seeing OO on CLOS some time ago and thinking it was hacky. Now I see the true power better. Thanks a lot

[Jose Jorge Rodriguez](https://hashnode.com/@josejorgers)

[Dec 16, 2020](https://hashnode.com/posts/learn-the-true-polymorphism/5f8bcf5cd7dc0b17a97a341f/comment/5fd9ec3220d7fe27bf266071#reply-5fda1785df6ee928d12ba7c7)

Thanks! Helping others is what makes me write these articles. I'm glad you had enjoyed the series so far. Stay tuned!