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May
21
reviewed Close statistics - estimator and biased unbiased
May
21
reviewed Close solve the inhomogeneous system
May
21
answered The free monoid functor is fully faithful?
May
20
revised Intuition behind independence & conditional probability
added 1 character in body
May
19
comment Question about limit and dividing by zero
that's the spirit!
May
19
comment Question about limit and dividing by zero
no @Rzeta, not at all.
May
19
answered Question about limit and dividing by zero
May
19
comment Can a nonempty set ever equal its Cartesian product with another set?
OP seems to be asking about actual equality, not bijective correspondences.
May
19
answered Can a nonempty set ever equal its Cartesian product with another set?
May
19
answered Base of the $\mathbb{R}$ vector space that contains all real functions: $f(x) \not= 0$ for finitely many x $\in\mathbb{R}$
May
19
answered Possible textbook redundancy concerning invertible mappings
May
18
comment Brouwer's fixed-point theorem and the intermediate value theorem?
Because if $f(x)>t$, then $f(x+h)>t$ for sufficiently small $|h|$, by continuity of $f$.
May
18
answered Brouwer's fixed-point theorem and the intermediate value theorem?
May
17
answered How to explain that $A \implies B$ is true when $A$ is false
May
17
revised What are the possible sets of critical values of a complex polynomial of degree $n$?
added 2 characters in body
May
17
comment Little confused about the constraint of Injective Functions and Surjective.
Michael's answer is all the explanation required.
May
17
comment Little confused about the constraint of Injective Functions and Surjective.
no, this is not all correct. In fact, it is mostly incorrect.
May
17
comment What does it mean for a set to exist?
If the anonymous downvoter cares to elaborate, I'm all ears.
May
14
awarded  general-topology
May
14
answered Dual space of a finite dimensional