can you guys f***ing tell me what about you're talking??



Someone (I forgot who) made some post about there being no absolute truths or somesusch. I object to this as I think it a cover for all sorts of bad behaviours like “alternative facts” so challenged on the basis that 2+2 always = 4.
Of course I don’t know any higher order mathematics so was quickly proved wrong. Now I am trying to understand why I was wrong.
thanks! you mean approach of Mathematical proof?
https://en.wikipedia.org/wiki/Mathematical_proof
EDIT:
Discrete mathematics, second or third semester of computer science 

thanks!