Introduction to Proof by Contradiction: sqrt(2) is irrational
This video introduces the mathematical proof method of proof by contradiction and provides an example of a proof. mathispower4u.com
From playlist Symbolic Logic and Proofs (Discrete Math)
Writing Proofs | Proof by Contradiction Example 2
We prove a statement using the method of proof by contradiction.
From playlist Abstract Algebra
Proof by Contradiction: There are no integers x and y such that x^2 = 4y + 2
This video provides an example of proof by contradiction. mathispower4u.com
From playlist Symbolic Logic and Proofs (Discrete Math)
Proof by Contradiction: There are infinitely many primes
This video provides an example of proof by contradiction. mathispower4u.com
From playlist Symbolic Logic and Proofs (Discrete Math)
Proofs by contradiction -- Proofs
This lecture is on Introduction to Higher Mathematics (Proofs). For more see http://calculus123.com.
From playlist Proofs
Proof by Contradiction | Explanation + 5 Examples
In this video, I explain the basic idea of the proof by contradiction method. Then I show 5 examples of using proof by contradiction to prove some propositions. Thanks for watching! Comment below with questions, and make sure to keep flexin' those brain muscles! Facebook: https://www.f
From playlist Proofs
13. Ch. 4, Sections 4.8 & 4.9. Introduction to Logic, Philosophy 10, UC San Diego - BSLIF
Video lecture corresponding to _Basic Sentential Logic and Informal Fallacies_, Chapter 4, Sections 4.8 & 4.9. This is for the class Introduction to Logic, Philosophy 10, UC San Diego.
From playlist UC San Diego: PHIL 10 - Introduction to Logic | CosmoLearning.org Philosophy
Topology Without Tears - Video 4c - Writing Proofs in Mathematics
This is part (c) of the fourth video in a series of videos which supplement my online book "Topology Without Tears" which is available free of charge at www.topologywithouttears.net Video 4 focusses on the extremely important topic of writing proofs. This video is about Proof by Contradict
From playlist Topology Without Tears
Natural Deductive Logic: DERIVABLE RULES (MT, HS, DS, DeM)
In this video on #Logic we do the proofs for modus tollens (MT), hypothetical syllogism (HS), disjunctive syllogism (DS) and one of the DeMorgan's Laws (DeM) so that we can use them as shortcuts in further proofs. 0:00 [Modus Tollens (MT)] 1:23 [Hypothetical Syllogism (HS)] 3:25 [Disjunct
From playlist Logic in Philosophy and Mathematics
proof by contradiction and more -- Proof Writing 11
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From playlist Proof Writing
How not to Use Proof by Contradiction
Sometimes a proof is actually simpler than we might think... Animated using Manim. Intro: 00:00 Largest counting number: 00:30 Infinite primes: 02:32 Cantor's diagonal argument: 07:25 Conclusions: 11:09
From playlist Summer of Math Exposition 2 videos
Four Exercises in Natural Deductive Proofs: DERIVABLE RULES (DeM, Contra, Impl)
In this video on #Logic we do the proofs the DeMorgan's Laws (DeM), Contrapositive Law (Contra), and Implication (Impl) so that we can use them as shortcuts in further proofs. 0:00 [Intro] 0:37 [DeMorgan's #3 (DeM)] 4:10 [DeMorgan's #4 (DeM) - TOUGH] 11:32 [Contraposition (Contra)] 13:11
From playlist Logic in Philosophy and Mathematics
Proof by Counter Example: Prove a Converse is False
This video provides an example of a proof by counter example. mathispower4u.com
From playlist Symbolic Logic and Proofs (Discrete Math)
Proof: The Square Root of 2 is Irrational
This is one of the first proofs I did in my intro to proofs class. It's very beginner friendly, and it's a great example of how powerful the proof by contradiction technique is. Enjoy :) Facebook: https://www.facebook.com/braingainzofficial Instagram: https://www.instagram.com/braingai
From playlist Proofs
Natural Deductive Proofs: THEOREMS - Logic
In this video on #Logic, we learn what theorems are in natural deductive proofs and prove four of them. 0:00 [What are theorems?] 0:59 [Proof #1: If P then P] 2:38 [Proof #2: P and not P] 4:33 [Proof #3: if P then not not P] 6:38 [Proof #4: P or not P] 9:27 [Theorem Introduction] If you
From playlist Logic in Philosophy and Mathematics
Proof by Contradiction | Method & First Example
Proof by Contradiction is one of the most important proof methods. It is an indirect proof technique that works like this: You want to show a statement P is true. First assume the P is actually false. Then manipulate until you get a contradiction like 0=1. This means your assumption that P
From playlist Discrete Math (Full Course: Sets, Logic, Proofs, Probability, Graph Theory, etc)
Basic Methods: We define theorems and describe how to formally construct a proof. We note further rules of inference and show how the logical equivalence of reductio ad absurdum allows proof by contradiction.
From playlist Math Major Basics