Q1: What does the symbol ⊆ represent?

Proper subset Subset Superset Complement

Q2: Which of the following denotes a proper subset?

⊆ ⊃ ⊂ ∩

Q3: What does the symbol ∈ mean in set theory?

Intersection Belongs to Union Complement

Q4: What symbol represents "intersection" between sets?

∪ ∩ ⊆ ∖

Q5: Which symbol represents the "union" of sets?

∪ ∩ ∈ ⊂