According to Dempster-Shafer theory for uncertainty management.
Where Bel(A) denotes Belief of event A.
1
Bel(A) + Bel(¬A) ≤ 1
2
Bel(A) + Bel(¬A) ≥ 1
3
Bel(A) + Bel(¬A) = 1
4
Bel(A) + Bel(¬A) = 0
According to Dempster-Shafer theory for uncertainty management.
Where Bel(A) denotes Belief of event A.