From a7da57c0736bec58d1fc4ec99d211099c31bb45f Mon Sep 17 00:00:00 2001 From: Preston Pan Date: Wed, 24 Jan 2024 19:26:59 -0800 Subject: new content --- mindmap/infinity.org | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) (limited to 'mindmap/infinity.org') diff --git a/mindmap/infinity.org b/mindmap/infinity.org index b08e723..8d41105 100644 --- a/mindmap/infinity.org +++ b/mindmap/infinity.org @@ -3,7 +3,19 @@ :END: #+title: infinity #+author: Preston Pan -#+options: num:nil #+html_head: -#+options: tex:dvipng -* placeholder text +#+html_head: +#+html_head: +#+options: broken-links:t + +* Introduction +Infinity has been a concept that has caused many troubles in the realm of mathematics. Algebra with infinities +have not been easy to define in history, and there are limited cases of success in this endevour. Generally speaking, +we can add infinities to existing sets, and define ordering. For example, for real numbers, the set: +\begin{align*} +\mathbb{R}\cup \{-\infty, \infty \} +\end{align*} +extends the real numbers to include infinites. However, only order is well defined; algebra is generally not allowed. +\begin{align*} +\forall a \in \mathbb{R}, -\infty < a < \infty +\end{align*} -- cgit