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GS Chandy
Posts:
7,942
From:
Hyderabad, Mumbai/Bangalore, India
Registered:
9/29/05


Re: The Chinese man who gave 'proof' zero is a number in Istanbul...
Posted:
Dec 14, 2012 7:45 PM


Responding to Jonathan Crabtree's question (his post is pasted, for reference, below my signature):
Sorry, but I don't 'get' the 'set theory demo' you have mentioned. Some further explanation appears to be needed.
GSC Jonathan Crabtree posted Dec 15, 2012 3:47 AM: > [Please have a look at the attached photo.] > > Could this unusual picture become a demonstration of > basic set theory? > > What if this 'hole' was filled slice by slice from > left to right, like slices of jelly? > > The empty pool. { } > > The first numbered lane is zero {0} > > The second numbered lane is one {0, 1} > > Daaaave^ said this about such an occasion. > > "One of the first things i noticed. The outside lanes > looked choppy from the stands, and the ladder looks > like it is up in your business. > > I would sure rather be seeded 31st and in lane 4 of > heat nminus3 than seeded 30th and in lane 9 of heat > n. > > (you guys like how I dropped some algebra in there?! > Aww yeah. #math)" > > ^ Source: > http://swimswam.com/2012/06/nooutsidelaneropesinpr > elimsoftheolympictrials/ > > So is the set empty when there is no water or no > swimmers? > > Does the 'set' contain empty or missing things when > only lanes 18 are used in the finals? > > Why aren't the lanes just named 1 to 10? > > How many ropes are required for races? (Like the > fence post lesson.) > > Width of lanes etc etc > > =========== > > Is anybody interested in 'refining' the above and > suggesting some cool lesson plan ideas around the > attachment? > > It never occurred to me there was a lane zero in > swimming as this was the first time I ever saw the > heats. Up until now I only ever saw lanes 1  8 on > television. > > NOTE: None of the commentators mentioned any algebra > or set theory!



