Which statement about the EMPTY SET ∅ is INCORRECT?

Question

Accepted Answer

B. ∅ is equal to {0}

{0} contains one element (the number zero) — it is NOT empty.
∅ contains no element at all.
∅ ⊂ S for every set S; n(∅) = 0; standard notation is ∅ or { }.

Answer

∅ has zero elements, so n(∅) = 0

Answer

∅ is a subset of every set

Answer

∅ is denoted by ∅ or { }

Which statement about the EMPTY SET ∅ is INCORRECT?

Keep practising Unit 1A3: Function Composition and Inverses