Sets and Predicate Flashcards
1
Q
What does ∃ mean ?
A
∃ Means that there is an entity that exists within a set.
2
Q
What does ∀ mean?
A
∀ means that all entity within a set
3
Q
Can sets be infinite
A
Sets can be infinite
4
Q
Can there be duplicates in sets
A
There cannot be duplicates
5
Q
What does ⊆ mean
A
⊆ mean a subset
6
Q
What does N mean
A
A set of all natural number {0,1,2,3…}
7
Q
What does Z mean
A
A set of all number {…,-3,-2,-1,0,1,2,3,…}
8
Q
What does ∈ mean
A
∈ means a member of a set
9
Q
How are Set defined
A
Set are defined using a curly bracket
