Question

True or False
For all x in R : X+X is greater or equal to x

Answer 1

i wld say this is false

Answer 2

What's an example of x for which it is false?

Answer 3

I think it's true.

Answer 4

x=-1

Answer 5

It is sufficient to find one counterexample in order to know it is false in general.

yes, x = -1 is a good counterexample.

Answer 6

oh yea, i forgot about -integers.

Answer 7

Thanks James its good to see u around again