Why doesn't Cantor's diagonalization work on integers?
5420
Why doesn't Cantor's diagonal argument also apply to natural numbers?
133086
When Cantor's Intersection theorem won't work with closed sets
114650
In Cantor's Diagonalization Argument, why are you allowed to assume you have a bijection from naturals to rationals but not from naturals to reals?
85769
Do you need the Axiom of Choice to accept Cantor's Diagonal Proof?
86988
Cardinality of the Irrationals
70157
Is every matrix $A$ such that $A^k=I$ diagonalizable?
80751
diagonalisability of matrix few properties
132366
Diagonalizability of $A \in M_{n}(\Bbb{R})$ (Upper traingular matrix) with all diagonal entries 1 and $A \neq I$?
127025
Diagonalization of a projection
272
Cantor Sets/nonempty/cardinality
111944
Do Cantor's Theorem and the Schroder-Bernstein Theorem Contradict?
125195
If matrix A is invertible, is it diagonalizable as well?
10828
If $A^2 = I$, then $A$ is diagonalizable, and is $I$ if $1$ is its only eigenvalue
89047
If a matrix is triangular, is there a quicker way to tell if it is can be diagonalized?
141227
How to show the integers have same cardinality as the natural numbers?
35015
Why must the determinant of a matrix with with integer entries be an integer?
36182
Why doesn't the last digit method work for divisibility by 4?