I am reading about SOLID principles and have just read that Dependency Inversion (DI) is an extension to the Open-Closed Principle (OCP). How is that exactly meant, if OCP is about making class extensible without touching the original code, basically.

I am reading about SOLID principles and have just read that Dependency Inversion (DI, to be distinguished here from Dependency injection, which is one way of achieving the inversion) is an extension to the Open-Closed Principle (OCP). How is that exactly meant, if OCP is about making class extensible without touching the original code, basically.

I am reading about SOLID principles and have just read that DI is an extension to OCP. How is that exactly meant, if OCP is about making class extensible without touching the original code, basically.

I am reading about SOLID principles and have just read that Dependency Inversion (DI) is an extension to the Open-Closed Principle (OCP). How is that exactly meant, if OCP is about making class extensible without touching the original code, basically.