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From: Archimedes Plutonium on 9 Jan 2010 00:47 First I am going to quote Wikipedia on what the Peano Axioms are, so as to give a basis for the discussion. And the Peano Axioms are so riddled with contradiction and inconsistency that I need to replace them with a new system. The major flaws of the Peano Axioms are the assumption of finite and infinite with never a well-defined finite, nor infinite. This causes the Peano Axioms to be inconsistent. There are minor flaws in the Peano Axioms such as never a "metric ruler" established for the creation of the Successor Function as endless adding of 1. So we need to create as given axiom, not just the existence of 0 but the existence of a metric ruler of 0 and 1 so that we use the metric distance of "1 unit" for the Successor Function. Otherwise, the Peano Axioms could just as well be the set {0, 1/2, 1, 1.5, ...}. This is a minor error. Another error is the need for inclusion of a Mathematical Induction. Math Induction comes out of the Successor Axiom and no need to have a redundant axiom. So in the next few days I shall offer the AP-Natural-Numbers-Axioms. --- quoting Wikipedia on the Peano Axioms --- The first four axioms describe the equality relation. 1. For every natural number x, x = x. That is, equality is reflexive. 2. For all natural numbers x and y, if x = y, then y = x. That is, equality is symmetric. 3. For all natural numbers x, y and z, if x = y and y = z, then x = z. That is, equality is transitive. 4. For all a and b, if a is a natural number and a = b, then b is also a natural number. That is, the natural numbers are closed under equality. The remaining axioms define the properties of the natural numbers. The constant 0 is assumed to be a natural number, and the naturals are assumed to be closed under a "successor" function S. 5. 0 is a natural number. 6. For every natural number n, S(n) is a natural number. Peano's original formulation of the axioms used 1 instead of 0 as the "first" natural number. This choice is arbitrary, as axiom 5 does not endow the constant 0 with any additional properties. However, because 0 is the additive identity in arithmetic, most modern formulations of the Peano axioms start from 0. Axioms 5 and 6 define a unary representation of the natural numbers: the number 1 is S(0), 2 is S(S (0)) (= S(1)), and, in general, any natural number n is Sn(0). The next two axioms define the properties of this representation. 7. For every natural number n, S(n) â 0. That is, there is no natural number whose successor is 0. 8. For all natural numbers m and n, if S(m) = S(n), then m = n. That is, S is an injection. These two axioms together imply that the set of natural numbers is infinite, because it contains at least the infinite subset { 0, S(0), S (S(0)), ⦠}, each element of which differs from the rest. The final axiom, sometimes called the axiom of induction, is a method of reasoning about all natural numbers. 9. If K is a set such that: ⪠0 is in K, and ⪠for every natural number n, if n is in K, then S(n) is in K, then K contains every natural number. The induction axiom is sometimes stated in the following form: If Ï is a unary predicate such that: ⪠Ï(0) is true, and ⪠for every natural number n, if Ï(n) is true, then Ï(S(n)) is true, then Ï(n) is true for every natural number n. --- end quoting Wikipedia on what the Peano Axioms are --- And funny how the concept of finite and infinite are never mentioned in any of the axioms of Peano. Archimedes Plutonium www.iw.net/~a_plutonium whole entire Universe is just one big atom where dots of the electron-dot-cloud are galaxies |