| Het getal 0 is het neutraal element van de optelling van reële getallen. Dit wil zeggen | A.   ∀ a ∈  : a + 0 = a | 
|---|---|
| B.   ∃  a ∈  : a + 0 = a | |
| C.   ∀ a ∈  : a + 0 = 0 + a | |
| D.   ∀ a ∈  : a + 0 = 0 + a = a | |
| E.   ∀ a ∈  : 0 + a = a + 0 = 0 | 
[ 3-7471 - op net sinds 14.10.13-(E)-29.10.2023 ]
| Zero is the identity/neutral element under addition for the real numbers. This means that | A.  ∀ a ∈  : a + 0 = a | 
|---|---|
| B.  ∃  a ∈  : a + 0 = a | |
| C.  ∀ a ∈  : a + 0 = 0 + a | |
| D.  ∀ a ∈  : a + 0 = 0 + a = a | |
| E.  ∀ a ∈  : 0 + a = a + 0 = 0 | 
