Do you know a simplest maths formula can turn into a giant formula? Ok let’s see.
We know 1+(-1)=0 , 2+(-2)=0 , so on.
So from this equation we can tell , if a paricle and a antiparticle combine, they will annihilate themselves leaving result nothing (i.e. zero).
Now again, we can write 0=1+(-1), 0=2+(-2), 0=x+(-x)… so on. So we can say nothing is sum of two equal and opposite in nature’s particle or energy or charge.
So we can write also,
0=1+(-1)+2+(-2)+3+(-3)+…+x+(-x) where 0<x<infinite.
So we can say zero is a combination of multiple particle and antiparticle.
This is the hypothesis of physics, on which i am currently focusing.