Creating a procedure/method is a form of abstraction. Allowing it to accept parameters is a form of generalization (by allowing it to be used for a number of similar inputs).
Simply creating an integer data type is a very simple form of generalization. Allowing operations to work against generically against any integer.
I'm not sure that your description of generalization coincides with the idea of modeling abstraction from TFA. Modeling abstraction is "about identifying what should leak and leveraging it". Generalization is about making something cover more cases. The technique to achieve these things can overlap of course, but the intention/goal is different.
Abstraction hides unnecessary detail. Generalization finds/surfaces commonality among items.
> oop - What's the difference between abstraction and generalization? - Stack Overflow - https://stackoverflow.com/questions/19291776/whats-the-diffe...
Creating a procedure/method is a form of abstraction. Allowing it to accept parameters is a form of generalization (by allowing it to be used for a number of similar inputs).
Simply creating an integer data type is a very simple form of generalization. Allowing operations to work against generically against any integer.