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Chapter 1. Arithmetics
Chapter 1. Arithmetics

Chapter 1, Part I: Propositional Logic
Chapter 1, Part I: Propositional Logic

Real Numbers
Real Numbers

Primes and Factoring Dr. Molli Jones, PA3
Primes and Factoring Dr. Molli Jones, PA3

... Finally, we have the question, why do we care?? (Or maybe you asked hours ago.) Anyway, all of these techniques are use in RSA encryption. This is the system that many internet sites use to keep your credit card information safe. The following is adapted from: http://www.muppetlabs.com/~breadbox/tx ...
Grade 7
Grade 7

... including scale drawings, similar figures using graphics, and constant speed involving only one unit of time 2. Identify a proportion used to solve a problem given figures with the same orientation in space 3. Solve one-step percent problems involving discounts, taxes, and tips, using whole-number p ...
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Lesson 9-3 Rational Exponents
Lesson 9-3 Rational Exponents

ON THE EXPANSION OF SOME EXPONENTIAL PERIODS IN AN
ON THE EXPANSION OF SOME EXPONENTIAL PERIODS IN AN

... then adding a rational leads to a new example for which our result can be applied. We can also take the natural action of SL2 (Z) on any of these numbers. That is, starting from one of the above number ξ, the number (aξ +b)/(cξ +d), where |ad − bc| = 1, also satisfies the bound (1) of Theorem 1. Ano ...
Comparing Contrapositive and Contradiction Proofs
Comparing Contrapositive and Contradiction Proofs

... Only works for a finite number of cases. The standard approach to try. Contrapositive Assume Q', deduce P' Use if Q' as a (Indirect) Proof hypothesis seems to give more information to work with. Contradiction Assume P Λ Q', deduce Try this approach when a contradiction Q says something is not true. ...
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The Foundations: Logic and Proofs - UTH e

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Set-Builder Notation

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On the regular elements in Zn

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Lecture 4 - Michael De

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Directed Numbers

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Function Series, Catalan Numbers, and Random Walks on Trees

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Math 302: U1L4 Teacher Notes Multiplying and Dividing Rational

THE INTEGERS
THE INTEGERS

... in the year 628. This book is believed to mark the first appearance of the rules for negative numbers in the way we know today. He gives the following rules for positive and negative numbers in terms of fortunes (positive numbers) and debts (negative numbers). A debt subtracted from zero is a fortun ...
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Real Numbers and Their Graphs

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Advanced Algebra II Semester #1 Review Questions Handout

ON FINITE SUMS OF RECIPROCALS OF DISTINCT
ON FINITE SUMS OF RECIPROCALS OF DISTINCT

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Secondary Presentation PowerPoint

Advanced Algebra II Semester #1 Review Questions Handout
Advanced Algebra II Semester #1 Review Questions Handout

The sum of divisors of n, modulo n
The sum of divisors of n, modulo n

Unit 2 - Integers Pretest
Unit 2 - Integers Pretest

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Foundations of mathematics

Foundations of mathematics is the study of the logical and philosophical basis of mathematics, or, in a broader sense, the mathematical investigation of what underlies the philosophical theories concerning the nature of mathematics. In this latter sense, the distinction between foundations of mathematics and philosophy of mathematics turns out to be quite vague. Foundations of mathematics can be conceived as the study of the basic mathematical concepts (number, geometrical figure, set, function, etc.) and how they form hierarchies of more complex structures and concepts, especially the fundamentally important structures that form the language of mathematics (formulas, theories and their models giving a meaning to formulas, definitions, proofs, algorithms, etc.) also called metamathematical concepts, with an eye to the philosophical aspects and the unity of mathematics. The search for foundations of mathematics is a central question of the philosophy of mathematics; the abstract nature of mathematical objects presents special philosophical challenges.The foundations of mathematics as a whole does not aim to contain the foundations of every mathematical topic.Generally, the foundations of a field of study refers to a more-or-less systematic analysis of its most basic or fundamental concepts, its conceptual unity and its natural ordering or hierarchy of concepts, which may help to connect it with the rest of human knowledge. The development, emergence and clarification of the foundations can come late in the history of a field, and may not be viewed by everyone as its most interesting part.Mathematics always played a special role in scientific thought, serving since ancient times as a model of truth and rigor for rational inquiry, and giving tools or even a foundation for other sciences (especially physics). Mathematics' many developments towards higher abstractions in the 19th century brought new challenges and paradoxes, urging for a deeper and more systematic examination of the nature and criteria of mathematical truth, as well as a unification of the diverse branches of mathematics into a coherent whole.The systematic search for the foundations of mathematics started at the end of the 19th century and formed a new mathematical discipline called mathematical logic, with strong links to theoretical computer science.It went through a series of crises with paradoxical results, until the discoveries stabilized during the 20th century as a large and coherent body of mathematical knowledge with several aspects or components (set theory, model theory, proof theory, etc.), whose detailed properties and possible variants are still an active research field.Its high level of technical sophistication inspired many philosophers to conjecture that it can serve as a model or pattern for the foundations of other sciences.
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