[Wikipedia-l] Broken mathematical representation at [[Knuth's up-arrow notation]]

[Gerrit]

Hi,

Some of the mathematical representation on [[Knuth's up-arrow notation]]
is broken. There is too much whitespace. See:

http://en.wikipedia.org/math/a62fcfaa06f5fa6052ab4b8bf292f7fd.png

I don't know what causes this, but it doesn't look nice.

kind regards,
Gerrit.

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