List questions from examples-counterexamples

11.7k

Views

Give an example of a function $h$ that is discontinuous at every point of $[0,1]$, but with $|h|$ continuous on $[0,1]$

Published on 12 Apr 2026 - 7:19

319

Views

Number theory proof by counter example

Published on 13 Apr 2026 - 3:54

1.9k

Views

Tensor products over field do not commute with inverse limits?

Published on 12 Apr 2026 - 17:32

392

Views

Examples of $F$-algebra which has no proper two-sided ideals but has one-sided ideal(s)

Published on 12 Apr 2026 - 17:38

381

Views

There exists a continuous function that satisfies this property

Published on 20 Apr 2013 - 15:09

74.4k

Views

Example of Partial Order that's not a Total Order and why?

Published on 12 Apr 2026 - 10:35

143

Views

Lim sequence $\neq$ lim subsequence

Published on 21 Apr 2013 - 10:39

529

Views

Use of infinity as an "idealistic approximation"

Published on 13 Apr 2026 - 5:12

1.3k

Views

Derivative of complex-valued function and partial derivatives.

Published on 10 Apr 2026 - 0:00

313

Views

Analysis without algebra

Published on 10 Apr 2026 - 13:28

71

Views

Show that floor function does't satisfy FTC.

Published on 11 Apr 2026 - 12:55

1.9k

Views

Does separability imply the Lindelöf property?

Published on 11 Apr 2026 - 23:59

1.9k

Views

Counterexamples for Borel-Cantelli

Published on 12 Apr 2026 - 1:24

8.7k

Views

Is the sum of two singular matrices also singular?

Published on 11 Apr 2026 - 2:50

573

Views

Infinite series involving $\sqrt{n}$

Published on 12 Apr 2026 - 16:49

List Question

Give an example of a function $h$ that is discontinuous at every point of $[0,1]$, but with $|h|$ continuous on $[0,1]$

Number theory proof by counter example

Tensor products over field do not commute with inverse limits?

Examples of $F$-algebra which has no proper two-sided ideals but has one-sided ideal(s)

There exists a continuous function that satisfies this property

Example of Partial Order that's not a Total Order and why?

Lim sequence $\neq$ lim subsequence

Use of infinity as an "idealistic approximation"

Derivative of complex-valued function and partial derivatives.

Analysis without algebra

Show that floor function does't satisfy FTC.

Does separability imply the Lindelöf property?

Counterexamples for Borel-Cantelli

Is the sum of two singular matrices also singular?

Infinite series involving $\sqrt{n}$

Trending Questions

Popular # Hahtags

Popular Questions