Coho Courses

Coho Course #5, Russell's Paradox

Our most exciting stop so far on our mathematical journey! We've already gotten far enough to see – completely rigorously – the infamous Russell's Paradox that had the math world shook...

Coho Course #5, Russell's Paradox

Our most exciting stop so far on our mathematical journey! We've already gotten far enough to see – completely rigorously – the infamous Russell's Paradox that had the math world shook...

Coho Course #4, Sets Part 4

One of the most interesting realizations in set theory is that sets themselves are things, and can therefore be elements of sets – i.e., we can talk about sets of...

Coho Course #4, Sets Part 4

One of the most interesting realizations in set theory is that sets themselves are things, and can therefore be elements of sets – i.e., we can talk about sets of...

Coho Course #3, Sets Part 3

It's time to introduce a very important character in mathematics — the empty set.  Despite its emptiness, this set has many important roles to play.

Coho Course #3, Sets Part 3

It's time to introduce a very important character in mathematics — the empty set.  Despite its emptiness, this set has many important roles to play.

Coho Course #2, Sets Part 2

Having defined sets in the first Coho Course, it's now time to explore the substructure of sets.  Along the way we prove our first non-trivial theorem about sets.

Coho Course #2, Sets Part 2

Having defined sets in the first Coho Course, it's now time to explore the substructure of sets.  Along the way we prove our first non-trivial theorem about sets.

Coho Course #1: Set Theory, Part 1

Start your journey into modern mathematics with this gentle introduction to sets. The road ahead is long, but fun!

Coho Course #1: Set Theory, Part 1

Start your journey into modern mathematics with this gentle introduction to sets. The road ahead is long, but fun!