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The 87 pages that link to Real number, each with the reason it gives.
Uncountable setBroader topic: The real numbers are the standard example of an uncountable set.
Algebraically closed fieldCompared with: The real field is not algebraically closed, since polynomials such as x² + 1 have no real root.
Archimedean propertyRelated: The real numbers satisfy the property, providing its standard model.
Common logarithmRelated: Common logarithms of positive real inputs can take real values, including non-integers.
Darboux's theoremRelated: The theorem concerns values between real derivative values.
Monotone sequenceNarrower topic: The usual monotonicity definition compares sequence terms using the real-number order.
Sign functionNarrower topic: The sign function’s stated domain is the real numbers.
Completeness of the real numbersNarrower topic: Completeness is a defining structural property of this number system.
Number lineNarrower topic: Real numbers fill the line, including rational and irrational positions.
Bernoulli's inequalityNarrower topic: The generalized statement allows real exponents, not only integer ones.
Binary logarithmNarrower topic: Binary logarithms extend beyond integer exponents to positive real inputs.
Hyperreal numberNarrower topic: The hyperreal field extends the real numbers while preserving their ordinary arithmetic and order.
Local-global principleRelated: The real completion is an archimedean place that must be included in arithmetic tests.
One-sided limitNarrower topic: Ordinary one-sided limits approach points along the ordered real line.
Real-valued functionRelated: Every output of a real-valued function belongs to this number system.
Monotone convergence theoremNarrower topic: The theorem relies on the completeness of the real numbers.
ConstructivismRelated: Constructivist and classical accounts differ over which definitions and existence claims about reals are legitimate.
Number (mathematics)Broader topic: Real numbers include limits and measurements that fractions cannot express exactly.
Cube rootNarrower topic: Every real number has exactly one real cube root.
Extended real number lineBroader topic: Every ordinary member of the extended real number line is a real number.
Floor and ceiling functionsNarrower topic: Both functions accept every real number as input.
Nth rootNarrower topic: Restricting roots to real numbers explains why some even roots of negative numbers do not exist.
Pontryagin dualityRelated: It is self-dual, with real frequencies providing its characters.
Bolzano's theoremNarrower topic: The theorem concerns real-valued functions on real intervals.
Complex conjugate root theoremNarrower topic: Real coefficients remain unchanged under complex conjugation, which makes the theorem hold.
Imaginary numberRelated: Imaginary numbers use real numbers as their coefficients.
Solovay modelRelated: The theorem concerns every set of real numbers belonging to the model.
Square root of 2Narrower topic: The positive square root of 2 lies on the real number line.
Computable numberNarrower topic: Computable numbers form a precisely defined subset of the real numbers.
Mathematical constantNarrower topic: Many familiar constants are real numbers, though constants need not be limited to them.
Sign (mathematics)Narrower topic: The usual positive, negative, and zero classification applies to real numbers.
Cantor–Dedekind axiomBroader topic: These are the numerical values assigned to line points.
Cauchy's convergence testRelated: For real-valued series, completeness ensures Cauchy partial sums converge to a real sum.
Ostrowski's theoremRelated: The usual absolute value in the classification leads to the real completion.
Proof that π is irrationalNarrower topic: Irrationality classifies π within the real numbers, beyond the rational subset.
Standard part functionRelated: Every standard-part value lies in the real numbers.
Universe (mathematics and logic)Broader topic: Real analysis commonly fixes the real numbers as its domain.