Understanding the Empty set and set theory via proof
134770
For sets $A,B$, $A \cap (B \setminus A) \subseteq \varnothing$
109070
Question about the proof of the distributive property for sets
30660
Empty set does not belong to empty set
118824
What is the complement of empty set?
34099
Proving that the empty set is unique
1307
Infimum and supremum of the empty set
45878
Elementary Set Theory: Ordinals, Well Orderings and Isomorphisms
150825
Is an empty set equal to another empty set?
32441
How to prove or disprove statements about sets
52451
Ordered Triples and Set Theory
95042
Textbooks on set theory
26008
Why there is a unique empty set?
22804
Interpretation of limsup-liminf of sets
12539
Set Theory: Equivalency of Axiom of Choice and Choice Function
18828
Base and empty set of a topology
65316
Explaining Infinite Sets and The Fault in Our Stars
153975
Proving mathematical induction with arbitrary base using (weak) induction