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Mathematics
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Delta Psi's user avatar
Delta Psi's user avatar
Delta Psi
  • Member for 3 years, 4 months
  • Last seen more than a month ago
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2
Why the language of set theory involves only $\in$?
May 6, 2021
2
Proving $(\operatorname{cof} A)^t A = \det A \,I$. [duplicate]
May 28, 2022
1
Finding the intersection of the graphs of two functions algebraically.
Mar 13, 2021
1
How does this definiton say that $x$ is a prime number?
May 13, 2021
1
Understanding the induction principle in mathematical logic.
May 15, 2021
1
What should be my induction hypothesis for proving the unique readability of terms in first order logic?
May 31, 2021
1
Prove that $A$ is not similar to any diagonal matrix, but is similar to a lower triangular matrix.
Jun 19, 2022
1
Understanding Weierstrass’ decomposition formula.
Jun 24, 2022
1
Prove the limit: $\lim [\sqrt{4n^2 +n} - 2n] = \frac{1}{4}$
Jul 1, 2022
1
Prove that a continuous one-to-one function is either increasing or decreasing strictly.
Nov 3, 2022
Top network posts
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6
On geostrophic wind. How can the Coriolis force cancel out the pressure gradient force when they are mutually perpendicular?
5
My university is not issuing a transcript in the form required by a foreign university. What are the options before me?
5
Does China have a separation of power between legislative and executive branch? What is the equivalent of a Minister in China?