Reputation
11,559
Top tag
Next privilege 15,000 Rep.
Protect questions
Badges
2 23 49
Newest
 Yearling
Impact
~228k people reached

May
2
comment Is $f:\mathbb{Q^*} \rightarrow \mathbb{Q}$ by $f(\frac{a}{b}) = \frac{\max{(a,b)}}{\min{(a,b)}}$ a function?
What are the possible values of $a$ and $b$? In particular, can $b$ be negative?
May
2
comment Is there fundamental goal of mathematics?
Does this qualify?
May
2
revised Is there fundamental goal of mathematics?
Corrected spelling of Gödel
May
2
comment Intersection of two sets which are equivalence on set A is always equivalence?
@Sharma: A relation is a set. See my answer.
May
2
revised Intersection of two sets which are equivalence on set A is always equivalence?
added 120 characters in body
May
2
answered Intersection of two sets which are equivalence on set A is always equivalence?
May
2
revised Give an example to show that convergence of $|x_n|$ does not imply the convergence of $x_n$
added 369 characters in body
May
2
answered Give an example to show that convergence of $|x_n|$ does not imply the convergence of $x_n$
May
2
answered What does it mean for two matrices to be orthogonal?
May
2
answered why are equivalence relations called so?
May
2
answered $\text{Alt}\,(\phi_1 \otimes \phi_2 \otimes \phi_3)$
May
2
revised Why is a “reverse surjection” incorrect?
expanded a bit about the differences when using functions and general relations
May
2
answered Why is a “reverse surjection” incorrect?
May
2
reviewed Approve examples of a special problem in linear transformation
May
2
answered examples of a special problem in linear transformation
May
2
comment examples of a special problem in linear transformation
How do you define "distinct"? Does $T=2S$ already count as distinct?
May
2
comment Determinant of a otherwise constant matrix with a constant diagonal
Subtract the second row from the first.
May
2
comment How to prove that $\frac{\ln 12}{\ln 18}$ is irrational witout using the change of base rule?
Anyway, even if you could prove the claim, that would not solve your given task because you'd not use the change of base rule.
May
2
answered Prove that left and right inverses are equal
May
2
answered Can mathematical inductions work for other sets?