Does it make sense to say that a number is larger than every member of the empty set?
99480
Why is predicate "all" as in all(SET) true if the SET is empty?
150825
Is an empty set equal to another empty set?
73130
A simple question about open set
52682
Is the power set of the natural numbers countable?
11849
Size of a union of two sets
120495
Does this correctly interpret the "$\cong$" between groups as "$=$" between sets?
43024
Well-ordered sets, properties of an element that is not largest in the set
106325
Question about Cardinality
65768
What is the cardinality of the set of the empty set?
143003
$\bigcup \emptyset$ is defined but $\bigcap \emptyset$ is not. Why?
107215
Is $\emptyset \in \emptyset$ or $\emptyset \subseteq \emptyset$?
37910
If capital letters are supposed to be sets, why is $N$ used as a number?
30968
Is it possible that every set can be specified?
41899
Notation for: all subsets of size 2
126015
Elementary number theory in sets
46317
What is an Empty set?
22310
Why not to extend the set of natural numbers to make it closed under division by zero?