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Index
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Utsagnslogikk og Bevis
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Mengdelære
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Tallmengder
level: Tallmengder
Questions and Answers List
level questions: Tallmengder
Question
Answer
ℕ
N = naturlige tall {0, 1, 2, 3, 4, 5, ...}
ℤ
Z = heiltall {..., -3, -2, -1, 0, 1, 2, 3, ... }
ℚ
Q = rasjonelle tall/brøktall
ℝ
R = reelle tall Finst på ei kontinuerleg talllinje eks: e, π, √ (nesten alt) {4.25, √25, e, -33, π, √2}