Mathematical axioms

Least upper bound axiom

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Math 101 091517 Introduction to Analysis 07 Consequences of Completeness

Least upper bound axiom implies a "greatest lower bound 'axiom'": that any set bounded below has a greatest lower bound. Archimedean Property of R.

From playlist Course 6: Introduction to Analysis (Fall 2017)

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Math 101 091317 Introduction to Analysis 06 Introduction to the Least Upper Bound Axiom

Definition of the maximum (minimum) of a set. Existence of maximum and minimum for finite sets. Definitions: upper bound of a set; bounded above; lower bound; bounded below; bounded. Supremum (least upper bound); infimum (greatest lower bound). Statement of Least Upper Bound Axiom (com

From playlist Course 6: Introduction to Analysis (Fall 2017)

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Math 101 Introduction to Analysis 091815: Least Upper Bound Axiom

The least upper bound axiom. Maximum and minimum of a set of real numbers. Upper bound; lower bound; bounded set. Least upper bound; greatest lower bound.

From playlist Course 6: Introduction to Analysis

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Upper Bound

Upper and Lower Bound In this video, I define what it means for a set to be bounded above and bounded below. This will be useful in our definition of inf and sup. Check out my Real Numbers Playlist: https://www.youtube.com/playlist?list=PLJb1qAQIrmmCZggpJZvUXnUzaw7fHCtoh

From playlist Real Numbers

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Least Upper Bound Property

Least Upper Bound Property In this video, I state the least upper bound property and explain what makes the real numbers so much better than the rational numbers. It's called Real Analysis after all! Check out my Real Numbers Playlist: https://www.youtube.com/playlist?list=PLJb1qAQIrmmCZ

From playlist Real Numbers

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Monotone Sequence implies Least Upper Bound

Monotone Sequence Theorem implies Least Upper Bound Property In this video, I prove a very interesting analysis result, namely that the Monotone Sequence Theorem is EQUIVALENT to the Least Upper Bound Property. This makes the least upper bound property more intuitive, in my opinion. Chec

From playlist Sequences

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Axiomatics and the least upper bound property (I1) | Real numbers and limits Math Foundations 121

Here we continue explaining why the current use of `axiomatics' to try to formulate a theory of `real numbers' is fundamentally flawed. We also clarify the layered structure of the rational numbers: we have seen these several times already in prior discussion of the Stern- Brocot tree, her

From playlist Math Foundations

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Least upper bound proof

Proof of the Least Upper Bound Property In this video, I present a very elegant proof of the least upper bound property. This proof really illustrates why Dedekind cuts are so nice. Least Upper Bound Property: https://youtu.be/OQ0HBjq8OWE Dedekind Cuts: https://youtu.be/ZWRnZhYv0G0 Che

From playlist Real Numbers

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Math 131 090516 Lecture #02 LUB property, Ordered Fields

Least Upper Bound Property and Greatest Lower Bound Property; Fields; Properties of Fields; Ordered Fields and properties; description of the real numbers (ordered field with LUB property containing rational numbers as subfield); Archimedean property #fields #orderedfields #leastupperboun

From playlist Course 7: (Rudin's) Principles of Mathematical Analysis

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Real Analysis Chapter 1: The Axiom of Completeness

Welcome to the next part of my series on Real Analysis! Today we're covering the Axiom of Completeness, which is what opens the door for us to explore the wonderful world of the real number line, as it distinguishes the set of real numbers from that of the rational numbers. It allows us

From playlist Real Analysis

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Real Analysis Ep 3: The Axiom of Completeness

Episode 3 of my videos for my undergraduate Real Analysis course at Fairfield University. This is a recording of a live class. This episode is about the completeness axiom for the real numbers. Class webpage: http://cstaecker.fairfield.edu/~cstaecker/courses/2020f3371/ Chris Staecker we

From playlist Math 3371 (Real analysis) Fall 2020

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Real Analysis | The density of Q and other consequences of the Axiom of Completeness.

We present three results that follow from the completeness of the real numbers. 1. The Nested Interval Theorem 2. The Archimedean Principal 3. The density of the rational numbers in the real numbers. Please Subscribe: https://www.youtube.com/michaelpennmath?sub_confirmation=1 Personal W

From playlist Real Analysis

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The Intermediate Value Theorem, Continuity, and The Axiom of Completeness | Nathan Dalaklis

The Intermediate Value Theorem is something that I said I covered, but apparently I hadn't yet. So here I tackle a proof of the IVT with the help of Continuity and the Axiom of Completeness so that when it does come up again, I can reference it and actually have something to point at :D _

From playlist The New CHALKboard

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Nested Interval Property and Proof | Real Analysis

We introduce and prove the nested interval property, or nested interval theorem, or NIP, whatever you like to call it. This theorem says that, given a sequence of nested and closed intervals, that is, closed intervals J1, J2, J3, and so on such that each Jn contains Jn+1, this infinite seq

From playlist Real Analysis

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Calculating With Upper & Lower Bounds | Number | Maths | FuseSchool

Calculating With Upper & Lower Bounds | Number | Maths | FuseSchool In this video we are going to look at how to calculate with upper and lower bounds. To find the upper bound of an addition or of an area, you would want to multiply the upper bounds of both measurements, as this would g

From playlist MATHS: Numbers

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WHY DOES THE SQUARE ROOT EXIST IN THE REAL NUMBERS: How to prove that the mth root exists | Nathan D

This week we focus on how to prove that the mth root exists (I realize that most folks would say "nth root" here but I decided to change it up a little bit.) In doing so we will inadvertently give the answer to the question of "why does the square root exist in the real numbers?" for a pos

From playlist The New CHALKboard

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Least-upper-bound property