Use the Peano Axioms to prove each of the following. (a) 12 • (b) 1 3 and 2 = 3 ●
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Step 1: Formulae for Axioms
The Peano Axioms are usually formulated as follows:
- 0 is a natural number.
- For every natural number n, n = n. (Reflexivity)
- For all natural numbers m and n, if m = n, then n = m. (Symmetry)
- For all natural numbers l, m, and n, if l = m and m = n, then l = n. (Transitivity)
- For all natural numbers m and n, if m = n, then m + 1 = n + 1.
- For all natural numbers m and n, if m + 1 = n + 1, then m = n.
- For all natural numbers m, m + 1 is a natural number.
- For every natural number n, n + 1 ≠ 0.
- For all natural numbers m and n, if m + 1 = n + 1, then m = n implies that m = n.
- (Induction Axiom) If S is a set of natural numbers such that 0 is in S, and for every natural number n, if n is in S, then n + 1 is in S, then S contains all natural numbers.
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