The 3-tuple (90, 0, 55) as a set

An n-tuple (x₁,...,x_n) is an ordered list of n sets. It can be constructed in several ways. A popular definition is the original set x₁ for n=1 and the ordered pair ((x₁,...,x_n-1),x_n) otherwise.

Klick on the ordered pair ( 90, 0 ) or the natural number 55 to see how it may be defined as a set.

(90, 0, 55) = ( ( 90, 0 ), 55 )

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