Reddit reviews Q.E.D.: Beauty in Mathematical Proof (Wooden Books)
We found 4 Reddit comments about Q.E.D.: Beauty in Mathematical Proof (Wooden Books). Here are the top ones, ranked by their Reddit score.
http://www.amazon.com/Q-E-D-Beauty-Mathematical-Proof-Wooden/dp/0802714315/ref=cm_cr_pr_product_top
It's a nice little book, very small, notebook sized and only 60 or so pages, but it's quite enjoyable. :)
Q.E.D.: Beauty in Mathematical Proofs by Burkard Polster.
That's a great book. There's a good section about triangle numbers relating to squares as well.
Another good one with lots of visual proofs is QED, which features diagrams showing geometric formulas (such as the volume of a pyramid).
>EDIT: Wink? ;)
Yup. (I was trying to be facetiously "cute"... so many Q.E.D. proofs end up as geometric drawings! )
But on the serious side, yes. Keynes liked to "play around" with math-like "quasi-proofs" (and to expropriate and abuse physics concepts) and succeeded in baffling many with what was basically a lot of literary "fancy footwork" -- but his assumptions are so many (and so questionable) and he piles on so many things as "givens" (when they in fact are nothing of the sort -- falsely dismissing the inevitable failure of his equations with "in the long run we're all dead" and similar faux-witty rhetoric) -- that nothing of his really qualifies as a Q.E.D. He simply ignores that anything really NEEDS to be demonstrated.