@ragingloli I see where you are coming from, and while I agree that it was human invention that decided and worked out how to use math, science, and engineering, most of those three things were already in nature and simply had to be “labeled”. Addition has always been true whether you use human-invented symbols or not; the processes are simply eternal, ingrained facts and truths about the universe. You can add without knowing what you’re doing, that numbers exist, etc. Math is simply harnessing nature and truth. This is also the case for science. Both math and science are ways of interpreting and learning about existence.
Engineering is different, as it essentially interprets math and science for practical applications. So you could say that engineering is the process of using math and science to invent new things, and this classifies engineering not as an invention but as a process for invention.
Math and Science (the rules and truths of existence) -> Engineering (the process of interpreting and using those rules and truths) -> Invention.