609 reputation
327
bio website
location Unknow Galaxy
age
visits member for 1 year, 10 months
seen Dec 20 '13 at 18:33

A student in Philosophy but also curious in many fields.


I don't know,

But I want to know.


Apr
10
comment Given a relation $R$, is it reflexive? Symmetric? Transitive?
$R$ is not transitive. Let $a=6,b=15,c=35$, you can easily check them.
Apr
7
comment Difference between “Live” and “Define”
@suissidle The word let sometimes used as define but informally. What's more, it sometimes used as assign, e.g. let $x=0,y=1$.
Apr
7
reviewed Reviewed Show the steps from step 1 to step 2 (2D Potential - Physics + Maths)(Really Urgent)
Apr
7
accepted How to deal with infinite continued fractions in formal language?
Apr
6
comment What's the remainder of a natual number divided by lcm(m,n)?
Thank you, I have improved my question.
Apr
6
revised What's the remainder of a natual number divided by lcm(m,n)?
added 37 characters in body
Apr
6
comment How to deal with infinite continued fractions in formal language?
I see, generally infinite continued fraction $[x_0;x_1,\dots]$ is a (partial) function in ${\mathbb R}^{{\mathbb R}^{\omega}}$, which maps some infinite sequences $\langle x_0,x_1,\dots\rangle$ of reals to a real number.
Apr
5
accepted What's the remainder of a natual number divided by lcm(m,n)?
Apr
5
comment What's the remainder of a natual number divided by lcm(m,n)?
Yes, I understand. Thank you.
Apr
5
asked What's the remainder of a natual number divided by lcm(m,n)?
Apr
5
comment How to deal with infinite continued fractions in formal language?
@MarianoSuárez-Alvarez I found it is hard to express limits in first-order language either... We need to express supremum and infimum of sets(possibly infinite), so does it require higher-order language?
Apr
5
revised How to deal with infinite continued fractions in formal language?
added 40 characters in body; edited title
Apr
5
asked How to deal with infinite continued fractions in formal language?
Apr
4
revised Why don't we study algebraic objects with more than two operations?
correctify
Apr
4
comment Why don't we study algebraic objects with more than two operations?
@ChrisEagle Okay, I see.
Apr
4
comment Why don't we study algebraic objects with more than two operations?
@ChrisEagle Why fields can not be treated as universal algebras?
Apr
4
answered Why don't we study algebraic objects with more than two operations?
Apr
4
accepted Are there rules in the useage of prepositions in Math?
Mar
30
revised Are there rules in the useage of prepositions in Math?
fix
Mar
30
comment Are there rules in the useage of prepositions in Math?
@TaraB I think that the 'form word' I expressed is 'syntactic expletive', but in precisely in this post they are indeed prepositions.