Sets and Notation Flashcards
What is intersection?
All elements that are in both sets
What is union?
All elements that are in either or sets
What is difference?
All elements that are in one set but not the other
What is this symbol name A ⊆ B ?
A is a subset of B
What does this symbol A ⊆ B mean ?
A has less or equal elements than B
What does this symbol A ⊄ B mean ?
Set A is not contained in set B
What is this symbol name A ⊂ B ?
A is a proper subset of B
What is this symbol name A ⊃ B ?
A can’t be a proper subset of B
What is this symbol name A ⊄ B ?
A is not a subset of B
What does this symbol A ⊂ B mean?
A has less elements than B
What does this symbol A ⊃ B mean?
A has more elements than B
What is N?
Natural numbers
What is Z?
Integers
What is Q?
Rational numbers
What symbol is this ∅ =?
Empty set
