Aleph 0
One math problem a week, delivered to your inbox.
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 71 | Founded | 2 years ago | Last Issue | 6 months ago |
| Active | |||||
Read this Newsletter
aleph0.substack.comLatest Issues
The different sizes of infinity
I will start with a somewhat provocative statement:
The set of ALL positive integers has the same size as the set of EVEN positive integers.
sounds wrong but it’s true!
At first, this sentence seems obviously wrong - I mean, one set is a...
What is ... a topological space?
When I was in undergrad, I was endlessly enamored with topology. I loved how it took intuitive ideas like “wiggle room” and “nearness”, and turned them into precise math.
At the heart of the subject is one notion:
the open set.
So in thi...
vector spaces, explained
In math, it’s very common to see two objects that look superficially different on the outside, but are actually the same on the inside.
We’ll look at two such examples in this post:
-
the 2-D plane
-
the set of real-valued continuous...
What is measure theory?
in search of a thesis topic …
In the early 1900s, a French graduate student named Henri Lebesgue was looking for a thesis topic.
Henri Lebesgue
He asked a very simple sounding question:
How do you measure the size of a set of points?...
how calculus predicts the weather
When I was in high school, my math teacher asked the class a question which I still think about quite often.
Can you show that, at any time, there are two different points on the Equator that have the same temperature?
temperature map of...
Key Facts
Audience Metrics
Subscribers, engagement, traffic and sponsorship for Aleph 0.
| Subscribers | Engagement | 79 | Monthly Web Visits | ||
|---|---|---|---|---|---|
| Accepts Sponsors | Estimated Cost per Ad | ||||
Explore More
Authors
The writers behind this newsletter.
Frequently Asked Questions
How can I access the email archive for Aleph 0?
You can find recent issues that have been published by Aleph 0 on Reletter by scrolling up to where it says Latest Issues. Tap on the link for any of the most recent emails or hit More Issues to see older ones.
How many subscribers does Aleph 0 have?
To see how many people subscribe to Aleph 0, simply upgrade your Reletter account. We provide readership numbers and lots of other stats for this newsletter so you can decide if it's worth reaching out to.
How can I advertise in Aleph 0?
Newsletter advertising can be extremely effective when it's done right. Before you pitch Aleph 0 as a potential sponsor or partner, make sure that you've done your research and checked its newsletter stats with Reletter.
Then, personalize one of our winning pitching templates and send it to the right person using the contact info provided.
How much does it cost to sponsor a publication like Aleph 0?
Newsletter ad rates (or CPM) vary depending on many factors, including industry, number of subscribers, open rate, ad placement and more.
To find out how much an ad will cost, contact Aleph 0 using the contact information provided and ask for a copy of their media kit.
How can I find newsletters related to Aleph 0?
Scroll up to where it says Related Newsletters to see other publications like Aleph 0. You can also search our email newsletter directory to discover other newsletters that cover the topics you're interested in.
How do I contact Aleph 0?
Reletter provides this newsletter's website URL above, where you will often find their contact information. We also provide links to associated social media accounts and pitching templates so you can reach out fast.