Item 12 (005L) — The Clowder Project

Preferences

Font:

PDF Style:

Here's a breakdown of the differences between each PDF style:

Style	Class	Font	Theorem Environments
Style 1	`book`	Alegreya Sans	`tcbthm`
Style 2	`book`	Alegreya Sans	`amsthm`
Style 3	`book`	Arno*	`amsthm`
Style 4	`book`	Computer Modern	`amsthm`

*To be replaced with Linus Romer's Elemaints when it is released.

The Triangle Inequality for Symmetric Differences. We have
\[ U\mathbin {\triangle }W\subset U\mathbin {\triangle }V\cup V\mathbin {\triangle }W \]

for each $X\in \text{Obj}\webleft (\mathsf{Sets}\webright )$ and each $U,V,W\in \mathcal{P}\webleft (X\webright )$.

Noticed something off, or have any comments? Feel free to reach out!

You can also use the contact form below: