What is a short simple proof for [math]1+1=2[/math]?
Why does [math]1+1=2[/math]?
Why does 1+1=2 and not 3? Why is 1+1=2 and not 3? Why does [math]1^0 = 1[/math]? If 2+2=4 and 2*2=4 while 1*1=1, then why is 1+1= 2? What is [math]1+1+1+1+1+1+1+1+1+1+1+1*0+1[/math]? What is [math]f(x)[/math] in the math problem [math]f(x)=x+f(1+\frac{1}{x})?[/math] What is 1+1+2=? Why does 1/3 of 1/3 equal 1? How do I solve [math]x-x+1=0[/math]? Why is 1+1 = 2, but not 11? Why does 1*-1=-1,  and -1*-1=1? How do I solve [math]x+x^{1/2}=0[/math]? What is the result of [math]2^ {2^ {2^ {2^0}}}[/math]? Why does 2+3=5 not 6? How would you explain to a layman that [math](-2) \times (-2) = 4[/math]? Is [math]\frac{0}{0}[/math] equal to [math]\frac{0}{0}[/math]? Why is 1+1 equal to 2 but not 11? Why is [math]|x|[/math] is not differentiable at [math]x=0[/math]? Why is 2+2=4 and 2x2=4, 2^2=4 yet 3+3=6, but 3x3=9, 3^3=27? I mean why is 2 the only number with an equal sum and multiplication value? What is [math]x^2+\frac{1}{x^2}[/math], given [math]x+\frac{1}{x}= 1[/math]? How do I solve [math]2x-x=7[/math]? What is [math]y^2+2y+4-y[/math]? What is [math]x[/math] if [math]x^8=1[/math]? Why does -x/x = 1? What is 1/2+1/2? Why is [math]\Theta(n)+\Theta(1)=\Theta(n)[/math]? How can you prove that [math]-1\times(-1) = +1[/math]? What is 1/2+1/3+1/4? What is the difference between [code]=[/code] and [code]==[/code] in C++? What is a value for [math]y[/math] in [math]y^{y+2}=y[/math]?