List installed kernels - Off topic tangent

[Aravisian]

@zoran

the dude could have quite easily stated at 1st reply, it was a mint prob, not a zorin prob...

He did (Highlighting added by me):

@Forpli

Can someone please tell me how to find out which kernels are installed on the system, e.g. using the terminal?
I have set up automatic maintenance on my Linux Mint XFCE computer so that always two kernels are retained. However, the Grub menu shows a lot of kernels to choose from in the "Advanced Options".

That is from the first post in the thread.