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The five axioms, or postulates proposed by Peano are for the set of natural numbers: not real numbers. They are:

- Zero is a natural number.
- Every natural number has a successor in the natural numbers.
- Zero is not the successor of any natural number.
- If the successor of two natural numbers is the same, then the two original numbers are the same.
- If a set contains zero and the successor of every number is in the set, then the set contains the natural numbers.

Q: What are the five axioms in real numbers?

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No, they are not the same. Axioms cannot be proved, most properties can.

Assuming the first five numbers is meant to refer, not to the first five real numbers but to the first five positive integers, the answer is 1*2*3*4*5 = 120

They are called axioms, not surprisingly!

Axioms cannot be proved.

There are five of them, also known as Peano's axioms:0 is a number.If n is a number then n's successor is a number.0 is not the successor of a number.If two numbers have successors that are equal then the numbers themselves are equal.If S is a set that contains 0 and also the successor of every number that is in S then every number is in S.

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No, they are not the same. Axioms cannot be proved, most properties can.

An Axiom is a mathematical statement that is assumed to be true. There are five basic axioms of algebra. The axioms are the reflexive axiom, symmetric axiom, transitive axiom, additive axiom and multiplicative axiom.

I don't know why there should be 4 laws (=axioms) specifically. In mathematics you can choose whatever system of axioms and laws and work your way with those. Even "logic" (propositional calculus) can be redefined in meaningful ways. the most commonly used system is Zermolo-Fraenkel+choice: http://en.wikipedia.org/wiki/Zermelo%E2%80%93Fraenkel_set_theory#Axioms It has 9 axioms though, not 4. One might want to take into consideration the rules of "logic" as basic laws: http://en.wikipedia.org/wiki/Propositional_calculus Another common set of axioms that can be created inside the ZFC system is peano arithmetic: http://en.wikipedia.org/wiki/Peano_arithmetic I hope I understood your question. The short answer is "there is no such thing". I think the questioner may have meant the 5 fundmental laws in mathematics, also known as the axioms of arithmetic, these are as follows: A1 - for any such real numbers a and b, a+b=b+a, the commutative law A2 - for any such real numbers a,b and c, a+(b+c) = (a+b)+c, the associative law A3 - for any real number a there exists an identity, 0, such that, a+0 = a, the identity law A4 - for any real number a there exists a number -a such that a+(-a)=0, the inverse law A5 - for any real numbers a and b, there exists a real number c, such that a+b=c, the closure property. These 5 axioms, when combined with the axioms of multiplication and a bit of logic/analytical thinking, can build up every number field, and from there extend into differentiation, complex functions, statistics, finance, mechanics and virtually every area of mathematics.

Assuming the first five numbers is meant to refer, not to the first five real numbers but to the first five positive integers, the answer is 1*2*3*4*5 = 120

The integers. Also: the rational numbers, the real numbers and (depending on your definition) the complex numbers.

Peano axioms was created in 1889.

Axioms - album - was created in 1999.

They are called axioms, not surprisingly!

They are the non-negative integers or whole numbers: {0, 1, 2, 3, ... }Some people exclude 0 but Peano's axioms include it.

Axioms cannot be proved.

It´s geometry without metric (ruler, protractor, scales etc). Just with pure geometrical contents.Ex.: questions about planes or lines intersecting points, lines intersecting planes etc are incidence synthetic geometrical questions.Parts of the Elements of Euclid are synthetic. Hilbert's axioms of Euclidean Geometry are synthetic because you don't need to measure segments or angles, and congruence is a primitive relation.Birkhoff´s axioms are not synthetic because distance, scale and real numbers belongs to the axioms. You have metric Geometry.

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