Mathematicians and Light Bulbs
How many mathematicians does it take to screw in a light bulb?
- None. It's left to the reader as an exercise.
- In earlier work, Wiener has shown that one mathematician can
change a light bulb.
If K mathematicians can change a light bulb, and if one more
simply watches, then k+1 mathematicians will have changed the
Therefore, by inductions, for all n in the positive integers,
n mathematicians can change a light bulb.
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