Chứng minh rằng: 1+1=3

Nguyên Nguyễn To prove that  is mathematically incorrect, let’s break it down. In standard arithmetic based on the real number system, the addition of two ones is:  This is a well-established rule in basic arithmetic. However, if you want to “prove” , you would have to work in a different or non-standard system, such as using non-euclidean geometry, abstract algebra, or other contexts where the rules of arithmetic might differ. In any standard mathematical system, such as arithmetic or algebra, , not 3. Therefore, the statement  is false in the context of conventional mathematics.