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From “Proofs Without Words” by Roger Nelsen.
That Familiar Tango.
The Ebb And Flow.
page 216 - Economian shed roofs have long been appreciated for their ability to keep rain off heads. While older roofers know how to plan before construction and use the leakages-injection approach to find equilibrium for the centre beam, younger roofers have come to rely on stacking layers of plywood and tar, one atop the next, to fix holes as they appear.
In The City.
page 216 - This is an illustration of a famous Economian parable: it does not matter whether you build your fortress on a foundation of supply-curve or shifts-in-the-demand-curve.
Happy Fall! Let’s start the season right with a Advanced Knowledge Problem from the WCoM Blog.
Advanced Knowledge Problem of the Week - 09/23/15 Want a hint? Have it solved? See here: http://bit.ly/1FdzQC1 Problem of the Week archive: http://bit.ly/1FdzP0J
I love a good math quote by John von Neumann!
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