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-====================
-Topology
-====================
-
-.. warning:: Incomplete; in progress
-
-.. note:: Most of the definitions and notation in the section are based on [munkres]_ 
-
-A *topological space* is a set for which a valid topology has been defined: the topology 
-determines which subsets of the topological space are open and closed. In this way the
-concept of open and closed subsets on the real number line (such as :m:`$(0,1)$` and
-:m:`$[1,2]$`) are generalized to arbitrary sets.
-
-Formally, a *topology* on a set :m:`$A$` is a collection :m:`$\mathcal{T}$` of 
-subsets of :m:`$A$` fufiling the criteria:
-
- 1. The empty set and the entire set :m:`$A$` are both in :m:`$\mathcal{T}$`.
-
- 2. The union of an arbitrary number of elements of :m:`$\mathcal{T}$` is 
-    also in :m:`$\mathcal{T}$`.
-
- 3. The intersection of a finite number of elements of :m:`$\mathcal{T}$` is
-    also in :m:`$\mathcal{T}$`.
-
-If a subset :m:`$B$` of :m:`$A$` is a member of :m:`$\mathcal{T}$` then
-:m:`$B$` is an open set under the topology :m:`$\mathcal{T}$`.
-
-*Coarseness* and *Fineness* are ways of comparing two topologies on the same space.
-:m:`$\mathcal{T'}$` is finer than :m:`$\mathcal{T}$` if :m:`$\mathcal{T}$`
-is a subset of :m:`$\mathcal{T'}$` (and :m:`$\mathcal{T}$` is coarser); 
-it is *strictly finer* if it is a proper subset (and :m:`$\mathcal{T}$` is 
-*strictly coarser*). Two sets are *comprable* if either :m:`$\mathcal{T\in T'}$`
-or :m:`$\mathcal{T'\in T}$`.
-*Smaller* and *larger* are somtimes used instead of finer and coarser.
-
-Topologies can be generated from a *basis*. 
-
-TODO: Hausdorf
-
-Frequently Used Topologies
-============================
-
-*Standard Topology*
-    The standard topology on the real line is generated by the collection of all intervals 
-    :m:`$$(a,b)=\{x|a<x<b\}$$`
-
-    This is the usual definition for open sets on the real line.
-
-*Discrete Topology*
-    The topology on a set :m:`$A$` consisting of all points of :m:`$A$`;
-    in other words the power set of :m:`$A$`.
-
-*Trivial/Indiscrete Topology*
-    The topology on a set :m:`$A$` consisting of only the empty set and :m:`$A$`
-    itself. Not super interesting but it's always there (when :m:`$A$` isn't empty).
-    
-*Finite Complement Topology* (:m:`$\mathcal{T}_f$`)
-    The topology on a set :m:`$A$` consisting of the empty set any subset 
-    :m:`$U$` such that :m:`$A-U$` has a finite number of elements.
-
-*Lower Limit Topology* (:m:`$\mathbb{R}_{\mathcal{l}}$`)
-    The lower limit topology on the real line is generated by the collection of all half open
-    intervals
-    :m:`$$[a,b)=\{x|a\leq x<b\}$$`
-    :m:`$\mathbb{R}_{\mathcal{l}}$` is strictly finer than the standard topology and
-    is not comprable to :m:`$\mathbb{R}_K$`.
-
-*K-Topology* (:m:`$\mathbb{R}_K$`)
-    Let :m:`$K$` denote the set of all numbers :m:`$1/n$` where :m:`$n$` is
-    a positive integer. 
-    The K-topology on the real line is generated by the collection of all standard open intervals 
-    minus :m:`$K$`. 
-    :m:`$\mathbb{R}_K$` is strictly finer than the standard topology and is not
-    comprable to :m:`$\mathbb{R}_{\mathcal{l}}$`.
-
-*Order Topology*
-    TODO
-
-
-
-.. [munkres] `Topology (2nd edition)`:title:, by James R. Munkres.