globalquiz.org
    • English language »
    • German language »
    • Polish language »
    • Russian language »
    • Ukrainian language »
    • Dutch language »
    • French language »
    • Spanish language »
    • Italian language »
    • Portuguese language »
    • Your country   
  • Explore
    • Top facts »
    • Toughest riddles »
    • Knowledge maps »
  • Contribute
    • Ranking of authors »
    • Latest questions »
    • Translate question »
    • Add new question »
    • My questions »
  • My profile
    • Knowledge profile »
    • Recent answers »
    • Settings »
    • Sign out
  • Sign in
    • Login via Facebook
    • Login via Google
    • Login with email
questionedithistorytranslations

Current version

This is the accepted version.
added by Ninjai April 18, 2018, 7:31 p.m.
In maths, what is aleph-zero?
the cardinality of the set of all countable ordinal numbers
the cardinality of the set of all natural numbers
the base value of the natural logarithm
the cardinality of the set of real numbers
The aleph numbers are a sequence of numbers used to represent the cardinality of infinite sets that can be well-ordered. The cardinality of the natural numbers is aleph-zero, the next larger cardinality is aleph-one, then aleph-two and so on. The concept and notation are due to Georg Cantor, who defined the notion of cardinality and realized that infinite sets can have different cardinalities.
Ninjai
Share and bring new players to the game!
0
Very uninteresting
Too difficult
Poorly written
Incorrect or questionable
Correct this question
wikipedia → Aleph number
1
Very interesting!
 wikipedia → Aleph number
reach: rather globalmathematicsnumbersscience

Votes

      Acceptable  misanthrope
+1 Very interesting!  Piper Perabo
      Acceptable  olorion
© GlobalQuiz.org  |  Privacy Policy  |  Contact
We use cookies to ensure that we give you the best experience on our website.