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grahamshawcross.com | ||
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jeremykun.wordpress.com
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| | | | | Last time we investigated the (very unintuitive) concept of a topological space as a set of "points" endowed with a description of which subsets are open. Now in order to actually arrive at a discussion of interesting and useful topological spaces, we need to be able to take simple topological spaces and build them up... | |
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www.jeremykun.com
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| | | | | Last time we investigated the (very unintuitive) concept of a topological space as a set of "points" endowed with a description of which subsets are open. Now in order to actually arrive at a discussion of interesting and useful topological spaces, we need to be able to take simple topological spaces and build them up into more complex ones. This will take the form of subspaces and quotients, and through these we will make rigorous the notion of "gluing" and "building" spaces. | |
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mathmunch.org
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| | | | | Welcome to this week's Math Munch! We've got geometry galore, starting with a series of historical math diagrams and a color update to Euclid's Elements. Then it's onto modern day paper artist Helen Friel, and finally a nifty new app that makes music from polygons. Let's get into it. Euclid's "Elements" was written around 300BC.... | |
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focalbreeze.wordpress.com
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| | | Taking a minute Happily curled up alone... Here inmy sweetplace. © Susan Reed Haiku and Photography by Susan Reed in Response to this week's Photography Challenge: Opposities. | ||
