1,717 reputation
929
bio website molinajosue.blogspot.com
location Houston, TX
age 25
visits member for 2 years, 7 months
seen Sep 10 at 22:02

Jul
22
accepted Fourier Series Definition Question
Jul
22
accepted The union of a sequence of infinite, countable sets is countable.
Jul
22
comment Every infinite subset of a countable set is countable.
I like this. :-) Thank you!
Jul
22
accepted Every infinite subset of a countable set is countable.
Jul
22
asked Every infinite subset of a countable set is countable.
Jul
20
accepted Theorem 2.13 in Walter Rudin's Principles of Mathematical Analysis
Jul
20
comment Theorem 2.13 in Walter Rudin's Principles of Mathematical Analysis
Thank you for the clarification! That makes sense. For a moment there, I thought that with equivalent he meant equal.
Jul
20
asked Theorem 2.13 in Walter Rudin's Principles of Mathematical Analysis
Jul
19
comment The union of a sequence of infinite, countable sets is countable.
@HagenvonEitzen, how did you conclude that $\mathbb N\to S$?
Jul
19
asked The union of a sequence of infinite, countable sets is countable.
Jul
18
revised How many members are in a club?
added 126 characters in body
Jul
18
answered How many members are in a club?
Jul
18
comment What is $a$ in $F(x)=\int_a^xf(t)\,dt$?
Thank you for providing me with the clarification I was looking for!
Jul
18
accepted What is $a$ in $F(x)=\int_a^xf(t)\,dt$?
Jul
17
comment black and white balls in the box
Here is the program, if interested: gist.github.com/molinaw1/6022501
Jul
17
comment black and white balls in the box
I wrote a program that simulates this problem, and after millions of runs, I always ended up with a black ball. +1
Jul
17
revised What is $a$ in $F(x)=\int_a^xf(t)\,dt$?
I just fixed a typo in the title.
Jul
17
comment What is $a$ in $F(x)=\int_a^xf(t)\,dt$?
I am sorry; I just fixed the typo.
Jul
17
asked What is $a$ in $F(x)=\int_a^xf(t)\,dt$?
Jul
16
comment $20$ hats problem
I am curious: how can the last prisoner, the one who sees no one, guess his color?