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Læs selv om uendelighed

by Erik Bjerre

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Lidt om uendelighed, Hilberts hotel med uendeligt mange gæster, større end uendelig?, endnu flere gæster, uendeligt mange nye gæster fra uendeligt mange busser? Uendeligt mange brøker, men tælleligt mange. Fraktaler og Sierpenski's si.

Standardtricks med først at flytte alle gæster fra værelse n til 2*n, så vi har uendeligt mange tomme værelse, så mapper vi de uendeligt mange gæster fra bus n, til primtal(n)^i, så er der også til uendeligt mange busser! Og endda er der pladser til overs, fx værelse 15.

Rigtig sød lille bog, hvor der er skåret på et meget tilpas tidspunkt inden hovedet begynder at gøre ondt! Man kunne godt lige have skrevet David Hilbert og Wacław Sierpiński et sted, men pyt. ( )
  bnielsen | Jan 29, 2017 |
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Author nameRoleType of authorWork?Status
Erik Bjerreprimary authorall editionscalculated
Pind, PernilleAuthormain authorsome editionsconfirmed
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