Here we will show, that 2 is equal to 3, since this equation is not only essential to fundamental physics, but also to fundamental mathematics.

We will start with to simple equations:

(1)

3 a - 2 a = a

and

(2)

a = b + c

Now, by inserting (2) into (1), we get:

(3)

3 a - 2 a = 3 ( b + c ) - 2 ( b + c )

After multiplication, eq. (3) yields:

(4)

3 a - 2 a = 3 b + 3 c - 2 b - 2 c

Now let us clarify the structure of eq. (4) by shifting all terms including the number 3 on the left side, and all terms including the number 2 on the right side:

(5)

3 a - 3 b - 3c = 2 a - 2 b - 2 c

Eq. (5) may be written even more clearly by the use of brackets:

(6)

3 ( a - b - c ) = 2 ( a - b - c )

Now it is very easy to see, that indeed

3 = 2

Any questions ?