What is the total number of different sets of natural numbers?
52682
Is the power set of the natural numbers countable?
92772
How many different sets of $6$ different numbers can we construct from $11, 13, 18, 19, 19, 20, 23, 25$?
83037
Applying Zorn's Lemma to natural numbers
145712
The amount of VS The number of, etc
73850
Cardinality of set of functions
153370
Number of different partitions of N
45392
Every natural number can be written as the sum of distinct Fibonacci numbers?
44354
Total number of solutions of an equation
136848
Find the number of nonzero elements
72402
Summation of natural number set with power of $m$
48051
Proof related to natural numbers
35362
Number of equivalence relations on a set
11359
Determine the Set of a Sum of Numbers
41052
The set of real numbers and power set of the natural numbers
126015
Elementary number theory in sets
138569
Is the “sum of all natural numbers” unique?
76405
Let n be an even integer. How many different ways can I choose subsets of the set {1,2...,n}