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Assignment 6
Assignment 6

Lecture 10: A Digression on Absoluteness
Lecture 10: A Digression on Absoluteness

1 Introduction 2 What is Discrete Mathematics?
1 Introduction 2 What is Discrete Mathematics?

... This course covers the mathematical topics most directly related to computer science. Topics include: logic, basic set theory, proof techniques, number theory, mathematical induction, recursion, recurrence relations, counting, probability and graph theory. Emphasis will be placed on providing a cont ...
Jacobi`s Two-Square Theorem and Related Identities
Jacobi`s Two-Square Theorem and Related Identities

... Indeed, I gave such a proof in [4]. The proof there consists of two parts. First, it is shown that ...
And this is just one theorem prover!
And this is just one theorem prover!

A Brief Note on Proofs in Pure Mathematics
A Brief Note on Proofs in Pure Mathematics

Slides
Slides

Direct Proofs (continued)
Direct Proofs (continued)

Different notions of conuity and intensional models for λ
Different notions of conuity and intensional models for λ

ASSIGNMENT 3
ASSIGNMENT 3

... example, in modern Euclidean geometry the terms ‘point and ‘line’ are typically left undefined. 2. Axioms (or Postulates): An axiom (or postulate) is a logical statement about terms that is accepted without proof. For example, the statement “A straight line can be drawn from any point to any point” ...
1.16. The Vector Space Cn of n-Tuples of Complex Numbers
1.16. The Vector Space Cn of n-Tuples of Complex Numbers

And this is just one theorem prover!
And this is just one theorem prover!

... • Pythagoras theorem: Given a right triangle with sides A B and C, where C is the hypotenuse, then C2 = A2 + B2 • Fundamental theorem of arithmetic: Any whole number bigger than 1 can be represented in exactly one way as a product of primes ...
February 23
February 23

Discrete Computational Structures (CS 225) Definition of Formal Proof
Discrete Computational Structures (CS 225) Definition of Formal Proof

... When we write a proof, we will number each line, and justify it by citing its source. When justifying the application of equivalency rules and argument forms, we will give the name of the logical principle we are using, along with the line number(s) to which the rule or form is applied. For example, ...
Class 8: Lines and Angles (Lecture Notes) – Part 1
Class 8: Lines and Angles (Lecture Notes) – Part 1

Class 8: Chapter 27 – Lines and Angles (Lecture
Class 8: Chapter 27 – Lines and Angles (Lecture

THE FEFERMAN-VAUGHT THEOREM We give a self
THE FEFERMAN-VAUGHT THEOREM We give a self

Chapter 1 - UTRGV Faculty Web
Chapter 1 - UTRGV Faculty Web

Abstract
Abstract

Independent random variables
Independent random variables

... a sequence of independent random variables with finite mean  and def K = E X14 < 1. Then, for almost every ! (or with probability 1) X1 + X2 + n ...
PDF
PDF

Logic (Mathematics 1BA1) Reminder: Sets of numbers Proof by
Logic (Mathematics 1BA1) Reminder: Sets of numbers Proof by

Compactness Theorem for First-Order Logic
Compactness Theorem for First-Order Logic

... Let G be any set of formulas of first-order logic. Then G is satisfiable if every finite subset of G is satisfiable. ...
4.2 The Mean Value Theorem (11/9)
4.2 The Mean Value Theorem (11/9)

< 1 ... 164 165 166 167 168 169 >

Theorem



In mathematics, a theorem is a statement that has been proven on the basis of previously established statements, such as other theorems—and generally accepted statements, such as axioms. The proof of a mathematical theorem is a logical argument for the theorem statement given in accord with the rules of a deductive system. The proof of a theorem is often interpreted as justification of the truth of the theorem statement. In light of the requirement that theorems be proved, the concept of a theorem is fundamentally deductive, in contrast to the notion of a scientific theory, which is empirical.Many mathematical theorems are conditional statements. In this case, the proof deduces the conclusion from conditions called hypotheses or premises. In light of the interpretation of proof as justification of truth, the conclusion is often viewed as a necessary consequence of the hypotheses, namely, that the conclusion is true in case the hypotheses are true, without any further assumptions. However, the conditional could be interpreted differently in certain deductive systems, depending on the meanings assigned to the derivation rules and the conditional symbol.Although they can be written in a completely symbolic form, for example, within the propositional calculus, theorems are often expressed in a natural language such as English. The same is true of proofs, which are often expressed as logically organized and clearly worded informal arguments, intended to convince readers of the truth of the statement of the theorem beyond any doubt, and from which a formal symbolic proof can in principle be constructed. Such arguments are typically easier to check than purely symbolic ones—indeed, many mathematicians would express a preference for a proof that not only demonstrates the validity of a theorem, but also explains in some way why it is obviously true. In some cases, a picture alone may be sufficient to prove a theorem. Because theorems lie at the core of mathematics, they are also central to its aesthetics. Theorems are often described as being ""trivial"", or ""difficult"", or ""deep"", or even ""beautiful"". These subjective judgments vary not only from person to person, but also with time: for example, as a proof is simplified or better understood, a theorem that was once difficult may become trivial. On the other hand, a deep theorem may be simply stated, but its proof may involve surprising and subtle connections between disparate areas of mathematics. Fermat's Last Theorem is a particularly well-known example of such a theorem.
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