USING AND UNDERSTANDING MATHEMATICS W/
7th Edition
ISBN: 9780135239919
Author: BENNETT AND BR
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 1.A, Problem 18E
To determine
To identify:
The premise(s) and conclusion of the given argument.
Given:
The argument with circular fallacy,
It is illegal to drive faster than the speed limit and breaking the law makes you a criminal, so drivers who exceed the speed limit are criminals.
To determine
To describe:
How the stated fallacy occurs in the argument?
Given:
The argument with circular fallacy,
It is illegal to drive faster than the speed limit and breaking the law makes you a criminal, so drivers who exceed the speed limit are criminals.
To determine
To make:
Another argument that exhibits the same fallacy.
Given:
The argument with circular fallacy,
It is illegal to drive faster than the speed limit and breaking the law makes you a criminal, so drivers who exceed the speed limit are criminals.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Chapter 1 Solutions
USING AND UNDERSTANDING MATHEMATICS W/
Ch. 1.A - Prob. 1QQCh. 1.A - A fallacy is a. a statement that is untrue. b. a...Ch. 1.A - Which of the following could not qualify as a...Ch. 1.A - An argument in which the conclusion essentially...Ch. 1.A - The fallacy of appeal to ignorance occurs when a....Ch. 1.A - Consider the argument ‘‘I don’t support the...Ch. 1.A - Consider again the argument ‘‘I don’t support the...Ch. 1.A - Prob. 8QQCh. 1.A - Suppose that the fact that an event A occurs...Ch. 1.A - When we speak of a straw man in an argument, we...
Ch. 1.A - What is logic? Briefly explain how logic can be...Ch. 1.A - How do we define an argument? What is the basic...Ch. 1.A - What is a fallacy? Choose three examples of...Ch. 1.A - Prob. 4ECh. 1.A - Prob. 5ECh. 1.A - I persuaded my father that I was right with a...Ch. 1.A - I didn’t believe the premises on which he based...Ch. 1.A - Prob. 8ECh. 1.A - I disagree with your conclusion, so your argument...Ch. 1.A - Even though your argument contains a fallacy, your...Ch. 1.A - Analyzing Fallacies. Consider the following...Ch. 1.A - 11-20: Analyzing Fallacies. Consider the following...Ch. 1.A - Analyzing Fallacies. Consider the following...Ch. 1.A - 11-20: Analyzing Fallacies. Consider the following...Ch. 1.A - Analyzing Fallacies. Consider the following...Ch. 1.A - Prob. 16ECh. 1.A - Analyzing Fallacies. Consider the following...Ch. 1.A - Prob. 18ECh. 1.A - Analyzing Fallacies. Consider the following...Ch. 1.A - Prob. 20ECh. 1.A - Media Claims. Each of the following claims can...Ch. 1.A - Prob. 22ECh. 1.A - Prob. 23ECh. 1.A - Prob. 24ECh. 1.A - Recognizing Fallacies. In the following arguments,...Ch. 1.A - 25-40: Recognizing Fallacies. In the following...Ch. 1.A - Recognizing Fallacies. In the following arguments,...Ch. 1.A - Recognizing Fallacies. In the following arguments,...Ch. 1.A - Prob. 29ECh. 1.A - Prob. 30ECh. 1.A - 25-40: Recognizing Fallacies. In the following...Ch. 1.A - Prob. 32ECh. 1.A - Prob. 33ECh. 1.A - Recognizing Fallacies. In the following arguments,...Ch. 1.A - Recognizing Fallacies. In the following arguments,...Ch. 1.A - Prob. 36ECh. 1.A - Prob. 37ECh. 1.A - 25-40: Recognizing Fallacies. In the following...Ch. 1.A - 25-40: Recognizing Fallacies. In the following...Ch. 1.A - 25-40: Recognizing Fallacies. In the following...Ch. 1.A - Prob. 41ECh. 1.A - Prob. 42ECh. 1.A - Additional Fallacies. Consider the blowing...Ch. 1.A - Additional Fallacies. Consider the blowing...Ch. 1.A - Evaluating Media Information. Choose a current...Ch. 1.A - Snopes. Visit the Snopes.com website and choose...Ch. 1.A - Prob. 47ECh. 1.A - Prob. 48ECh. 1.A - Fallacies in Politics. Discuss the tactics used by...Ch. 1.A - Prob. 50ECh. 1.A - 51. Comment Fallacies. The “reader comments” that...Ch. 1.A - 52. Fake News Sites. Visit a fake news site that...Ch. 1.B - The statement Mathematics is fun is a. an...Ch. 1.B - Suppose you know the truth value of a proposition...Ch. 1.B - Which of the following has the form of a...Ch. 1.B - Suppose you want to make a truth table for the...Ch. 1.B - Suppose the statement p or q is true. Then you can...Ch. 1.B - Suppose the statement p is false and the statement...Ch. 1.B - The statement If it’s a dog, then it is a mammal...Ch. 1.B - The statement If the engine is running, then the...Ch. 1.B - Two statements are logically equivalent if a. they...Ch. 1.B - Prob. 10QQCh. 1.B - What is a proposition? Give a few examples, and...Ch. 1.B - What do we mean by the negation of a proposition?...Ch. 1.B - Define conjunction, disjunction, and conditional,...Ch. 1.B - 4. What is the difference between an inclusive or...Ch. 1.B - 5. Make a truth table for each of the following: p...Ch. 1.B - Prob. 6ECh. 1.B - 7. My logical proposition is a question that you...Ch. 1.B - The mayor opposes repealing the ban on handguns,...Ch. 1.B - Prob. 9ECh. 1.B - Prob. 10ECh. 1.B - Prob. 11ECh. 1.B - Prob. 12ECh. 1.B - Prob. 13ECh. 1.B - Prob. 14ECh. 1.B - 13-18: A proposition? Determine whether the...Ch. 1.B - Prob. 16ECh. 1.B - Prob. 17ECh. 1.B - Prob. 18ECh. 1.B - Negation. Write the negation of the given...Ch. 1.B - Prob. 20ECh. 1.B - Prob. 21ECh. 1.B - Prob. 22ECh. 1.B - Prob. 23ECh. 1.B - Multiple Negations. Explain the meaning of the...Ch. 1.B - Prob. 25ECh. 1.B - Multiple Negations. Explain the meaning of the...Ch. 1.B - Prob. 27ECh. 1.B - Multiple Negations. Explain the meaning of the...Ch. 1.B - Truth Tables. Make a truth table for the given...Ch. 1.B - Prob. 30ECh. 1.B - Prob. 31ECh. 1.B - And Statements. The following propositions have...Ch. 1.B - Prob. 33ECh. 1.B - And Statements. The following statements have the...Ch. 1.B - Prob. 35ECh. 1.B - 31-36: And Statements. The following statements...Ch. 1.B - Truth Tables. Make a truth table for the given...Ch. 1.B - 37-38: Truth Tables. Make a truth table for the...Ch. 1.B - Prob. 39ECh. 1.B - 39-44: Interpreting or. State whether or is used...Ch. 1.B - Prob. 41ECh. 1.B - Interpreting or. State whether or is used in the...Ch. 1.B - 39-44: Interpreting or. State whether or is used...Ch. 1.B - Interpreting or. State whether or is used in the...Ch. 1.B - Truth Table. Make a truth table for the given...Ch. 1.B - Truth Table. Make a truth table for the given...Ch. 1.B - Truth Table. Make a truth table for the given...Ch. 1.B - Truth Table. Make a truth table for the given...Ch. 1.B - Truth Table. Make a truth table for the given...Ch. 1.B - Prob. 50ECh. 1.B - Prob. 51ECh. 1.B - Prob. 52ECh. 1.B - Prob. 53ECh. 1.B - Prob. 54ECh. 1.B - Prob. 55ECh. 1.B - 51-56: Or Statements. The following statements...Ch. 1.B - 57-58: Truth Tables. Make a truth table for the...Ch. 1.B - 57-58: Truth Tables. Make a truth table for the...Ch. 1.B - Prob. 59ECh. 1.B - Prob. 60ECh. 1.B - Prob. 61ECh. 1.B - Prob. 62ECh. 1.B - If... then Statements. Identify the hypothesis and...Ch. 1.B - Prob. 64ECh. 1.B - Prob. 65ECh. 1.B - If... then Statements. Identify the hypothesis and...Ch. 1.B - Rephrasing Conditional Statements. Express the...Ch. 1.B - 67-72: Rephrasing Conditional Statements. Express...Ch. 1.B - 67-72: Rephrasing Conditional Statements. Express...Ch. 1.B - 67-72: Rephrasing Conditional Statements. Express...Ch. 1.B - Prob. 71ECh. 1.B - Prob. 72ECh. 1.B - Converse, Inverse, and Contrapositive. Write the...Ch. 1.B - Converse, Inverse, and Contrapositive. Write the...Ch. 1.B - Converse, Inverse, and Contrapositive. Write the...Ch. 1.B - Prob. 76ECh. 1.B - Converse, Inverse, and Contrapositive. Write the...Ch. 1.B - Converse, Inverse, and Contrapositive. Write the...Ch. 1.B - Prob. 79ECh. 1.B - Prob. 80ECh. 1.B - 79-82: Famous Quotes. Rephrase the following...Ch. 1.B - 79-82: Famous Quotes. Rephrase the following...Ch. 1.B - 83-87: Writing Conditional Propositions. Create...Ch. 1.B - Prob. 84ECh. 1.B - Writing Conditional Propositions. Create your own...Ch. 1.B - 83-87: Writing Conditional Propositions. Create...Ch. 1.B - 83-87: Writing Conditional Propositions. Create...Ch. 1.B - Prob. 88ECh. 1.B - Necessary and Sufficient. Write the following...Ch. 1.B - Necessary and Sufficient. Write the following...Ch. 1.B - Prob. 91ECh. 1.B - 89-92: Necessary and Sufficient. Write the...Ch. 1.B - Logical Equivalence. Consider the following pairs...Ch. 1.B - Logical Equivalence. Consider the following pairs...Ch. 1.B - Logical Equivalence. Consider the following pairs...Ch. 1.B - Prob. 96ECh. 1.B - Logical Equivalence. Consider the following pairs...Ch. 1.B - Prob. 98ECh. 1.B - Prob. 99ECh. 1.B - Prob. 100ECh. 1.B - Prob. 101ECh. 1.B - Prob. 102ECh. 1.C - Consider the set {Alabama, Alaska, Arizona,…,...Ch. 1.C - Which of the following is not a member of the set...Ch. 1.C - Based on the Venn diagram below, we conclude that...Ch. 1.C - Suppose that A represents the set of all boys and...Ch. 1.C - Suppose that A represents the set of all apples...Ch. 1.C - Suppose that A represents the set of all high...Ch. 1.C - In the Venn diagram below, the X tells us that a....Ch. 1.C - Prob. 8QQCh. 1.C - Consider again the Venn diagram from Exercise 8....Ch. 1.C - Look at the data in Table 1.1 (p.34). The total...Ch. 1.C - Prob. 1ECh. 1.C - What is a Venn diagram? How do we show that one...Ch. 1.C - List the four standard categorical propositions....Ch. 1.C - Briefly discuss how you can put a categorical...Ch. 1.C - Explain how to draw a Venn diagram for three...Ch. 1.C - 6. Explain how to read a table such as Table 1.1...Ch. 1.C - The people who live in Chicago form a subset of...Ch. 1.C - All jabbers are wocks, so there must be no wocks...Ch. 1.C - I counted an irrational number of students in my...Ch. 1.C - I surveyed my class to find out whether students...Ch. 1.C - My professor asked me to draw a Venn diagram for a...Ch. 1.C - I used a Venn diagram with three circles to show...Ch. 1.C - Classifying Numbers. Choose the first set in the...Ch. 1.C - Prob. 14ECh. 1.C - Classifying Numbers. Choose the first set in the...Ch. 1.C - Prob. 16ECh. 1.C - 13-28: Classifying Numbers. Choose the first set...Ch. 1.C - 13-28: Classifying Numbers. Choose the first set...Ch. 1.C - 13-28: Classifying Numbers. Choose the first set...Ch. 1.C - Prob. 20ECh. 1.C - Prob. 21ECh. 1.C - Prob. 22ECh. 1.C - Prob. 23ECh. 1.C - Prob. 24ECh. 1.C - Prob. 25ECh. 1.C - Prob. 26ECh. 1.C - Prob. 27ECh. 1.C - Prob. 28ECh. 1.C - Prob. 29ECh. 1.C - Prob. 30ECh. 1.C - Prob. 31ECh. 1.C - Prob. 32ECh. 1.C - Prob. 33ECh. 1.C - Prob. 34ECh. 1.C - Prob. 35ECh. 1.C - Prob. 36ECh. 1.C - Prob. 37ECh. 1.C - Prob. 38ECh. 1.C - Prob. 39ECh. 1.C - Venn Diagrams for Two Sets. Draw Venn diagrams...Ch. 1.C - 37-44: Venn Diagrams for Two Sets. Draw Venn...Ch. 1.C - 37-44: Venn Diagrams for Two Sets. Draw Venn...Ch. 1.C - 37-44: Venn Diagrams for Two Sets. Draw Venn...Ch. 1.C - 37-44: Venn Diagrams for Two Sets. Draw Venn...Ch. 1.C - Categorical Propositions. For the given...Ch. 1.C - Categorical Propositions. For the given...Ch. 1.C - Categorical Propositions. For the given...Ch. 1.C - 45-52: Categorical Propositions. For the given...Ch. 1.C - Categorical Propositions. For the given...Ch. 1.C - Categorical Propositions. For the given...Ch. 1.C - Categorical Propositions. For the given...Ch. 1.C - Categorical Propositions. For the given...Ch. 1.C - Prob. 53ECh. 1.C - Prob. 54ECh. 1.C - Prob. 55ECh. 1.C - Prob. 56ECh. 1.C - Prob. 57ECh. 1.C - Prob. 58ECh. 1.C - Prob. 59ECh. 1.C - Prob. 60ECh. 1.C - Two-Circle Venn Diagram with Numbers. Use the Venn...Ch. 1.C - Two-Circle Venn Diagram with Numbers. Use the Venn...Ch. 1.C - Three-Circle Venn Diagram with Numbers. Use the...Ch. 1.C - Three-Circle Venn Diagram with Numbers. Use the...Ch. 1.C - Hospital Drug Use. The following numbers of...Ch. 1.C - Technology Survey. A survey of 150 college...Ch. 1.C - Venn Diagram Analysis. 67. A movie critic reviewed...Ch. 1.C - Venn Diagram Analysis. 68. All runners who...Ch. 1.C - Venn Diagram Analysis. 69. One hundred people who...Ch. 1.C - Venn Diagram Analysis. 70. In a trial of a new...Ch. 1.C - Prob. 71ECh. 1.C - Prob. 72ECh. 1.C - Prob. 73ECh. 1.C - Prob. 74ECh. 1.C - 86. Categorical Propositions. Find at least three...Ch. 1.C - Prob. 76ECh. 1.C - Prob. 77ECh. 1.C - Prob. 78ECh. 1.C - Prob. 79ECh. 1.C - Prob. 80ECh. 1.C - Prob. 81ECh. 1.C - State Politics. Find out how many states have a...Ch. 1.C - Prob. 83ECh. 1.D - To prove a statement true, you must use a. an...Ch. 1.D - If a deductive argument is valid, its conclusion...Ch. 1.D - Prob. 3QQCh. 1.D - 4. Consider an argument in which Premise 1 is "All...Ch. 1.D - 5. Consider again the argument from question 4....Ch. 1.D - Consider an argument in which Premise 1 is “ If p,...Ch. 1.D - 7. Consider an argument in which Premise 1 is “ If...Ch. 1.D - Prob. 8QQCh. 1.D - 9. The longest side of a right triangle is called...Ch. 1.D - Prob. 10QQCh. 1.D - Summarize the differences between deductive and...Ch. 1.D - Briefly explain the idea of strength and how it...Ch. 1.D - Briefly explain the ideas of validity and...Ch. 1.D - Describe the procedure used to test the validity...Ch. 1.D - Prob. 5ECh. 1.D - What is a chain of conditionals? Give an example...Ch. 1.D - Prob. 7ECh. 1.D - Prob. 8ECh. 1.D - 9. My inductive argument provides absolute proof...Ch. 1.D - Prob. 10ECh. 1.D - 11. My argument is deductively valid, so if you...Ch. 1.D - Prob. 12ECh. 1.D - Prob. 13ECh. 1.D - Prob. 14ECh. 1.D - Prob. 15ECh. 1.D - Prob. 16ECh. 1.D - Argument Type. Explain whether the following...Ch. 1.D - Argument Type. Explain whether the following...Ch. 1.D - Argument Type. Explain whether the following...Ch. 1.D - Argument Type. Explain whether the following...Ch. 1.D - Argument Type. Explain whether the following...Ch. 1.D - Prob. 22ECh. 1.D - Prob. 23ECh. 1.D - Prob. 24ECh. 1.D - Prob. 25ECh. 1.D - Prob. 26ECh. 1.D - Prob. 27ECh. 1.D - Analyzing Deductive Arguments. Consider the...Ch. 1.D - Prob. 30ECh. 1.D - 29-36: Analyzing Deductive Arguments. Consider the...Ch. 1.D - Analyzing Deductive Arguments. Consider the...Ch. 1.D - Analyzing Deductive Arguments. Consider the...Ch. 1.D - Analyzing Deductive Arguments. Consider the...Ch. 1.D - Prob. 35ECh. 1.D - Prob. 36ECh. 1.D - Prob. 37ECh. 1.D - 37-44: Deductive Arguments with Conditional...Ch. 1.D - 37-44: Deductive Arguments with Conditional...Ch. 1.D - 37-44: Deductive Arguments with Conditional...Ch. 1.D - Prob. 41ECh. 1.D - Prob. 42ECh. 1.D - Prob. 43ECh. 1.D - Deductive Arguments with Conditional Propositions....Ch. 1.D - Prob. 45ECh. 1.D - Prob. 46ECh. 1.D - Prob. 47ECh. 1.D - Prob. 48ECh. 1.D - Prob. 49ECh. 1.D - Prob. 50ECh. 1.D - Testing Mathematical Rules. Test the following...Ch. 1.D - It is true for all positive integers n that...Ch. 1.D - 53-57: Validity and Soundness. State whether it is...Ch. 1.D - 53-57: Validity and Soundness. State whether it is...Ch. 1.D - Prob. 55ECh. 1.D - Prob. 56ECh. 1.D - Validity and Soundness. State whether it is...Ch. 1.D - Prob. 58ECh. 1.D - Prob. 59ECh. 1.D - Prob. 60ECh. 1.D - Prob. 61ECh. 1.D - Prob. 62ECh. 1.D - Conditionals in Books. Consider the following...Ch. 1.D - Prob. 64ECh. 1.D - 63-66: Conditionals in Books. Consider the...Ch. 1.D - 63-66: Conditionals in Books. Consider the...Ch. 1.D - 62. The Goldbach Conjecture. Recall that a prime...Ch. 1.D - Twin Primes Conjecture. If you write out the first...Ch. 1.D - The Pythagorean Theorem. Learn more about the...Ch. 1.D - Prob. 70ECh. 1.D - 69. Inductive Reasoning in Your Life. Give an...Ch. 1.D - Prob. 72ECh. 1.D - Prob. 73ECh. 1.D - Prob. 74ECh. 1.E - What does it mean to think critically about the...Ch. 1.E - "If you want to save the social services that...Ch. 1.E - 2. Suppose that an argument is deductively valid...Ch. 1.E - 9. A teacher claims that, because spell checkers...Ch. 1.E - 3. You need to buy a car and are considering loans...Ch. 1.E - 4. You get your hair cut at a shop that charges...Ch. 1.E - You buy a cell phone plan that gives you up to...Ch. 1.E - Prob. 8QQCh. 1.E - Prob. 9QQCh. 1.E - The Smiths have a picnic every Saturday provided t...Ch. 1.E - Describe critical thinking and why it is important...Ch. 1.E - Prob. 2ECh. 1.E - Prob. 3ECh. 1.E - Prob. 4ECh. 1.E - Reed was relieved because his insurance company...Ch. 1.E - 6. Although the plane crashed in Nevada, the...Ch. 1.E - Sue prefers the Red shuttle because it gets her to...Ch. 1.E - Prob. 8ECh. 1.E - There was no price difference, so Michael chose...Ch. 1.E - Prob. 10ECh. 1.E - Prob. 11ECh. 1.E - Interpreting Policies. A city charters sole policy...Ch. 1.E - Reading a Ballot Initiative. Consider the...Ch. 1.E - Prob. 14ECh. 1.E - Hidden Assumptions. Identify at least two hidden...Ch. 1.E - Prob. 16ECh. 1.E - Hidden Assumptions. Identify at least two hidden...Ch. 1.E - Hidden Assumptions. Identify at least two hidden...Ch. 1.E - 29-30: Unstated Issues. The following arguments...Ch. 1.E - Unstated Issues. The following arguments give...Ch. 1.E - Airline Options. In planning a trip to New Zealand...Ch. 1.E - Buy vs. Lease. You are deciding whether to buy a...Ch. 1.E - You've Won! You receive the following e-mail...Ch. 1.E - Reading a Lease. Consider the following excerpt...Ch. 1.E - Prob. 25ECh. 1.E - Prob. 26ECh. 1.E - Prob. 27ECh. 1.E - 27-28. Fake News. The following are fake news...Ch. 1.E - 29-40: Read and Think Carefully. The following...Ch. 1.E - Prob. 30ECh. 1.E - Prob. 31ECh. 1.E - Prob. 32ECh. 1.E - Prob. 33ECh. 1.E - Prob. 34ECh. 1.E - Prob. 35ECh. 1.E - Prob. 36ECh. 1.E - Prob. 37ECh. 1.E - 29-40: Read and Think Carefully. The following...Ch. 1.E - 29-40: Read and Think Carefully. The following...Ch. 1.E - 29-40: Read and Think Carefully. The following...Ch. 1.E - Decision Making. Analyze the situations. and...Ch. 1.E - Prob. 42ECh. 1.E - Prob. 43ECh. 1.E - Prob. 44ECh. 1.E - IRS Guidelines on Who Must File a Federal Tax...Ch. 1.E - Prob. 46ECh. 1.E - Credit Card Agreement. The following rules are...Ch. 1.E - Prob. 48ECh. 1.E - Texas Ethics. In its Guide to Ethics the Texas...Ch. 1.E - Prob. 50ECh. 1.E - 50-54: Critical Thinking. Consider the following...Ch. 1.E - 57-65: Critical Thinking. Consider the following...Ch. 1.E - 50-54: Critical Thinking. Consider the following...Ch. 1.E - Prob. 54ECh. 1.E - Prob. 55ECh. 1.E - Interpreting the Second Amendment. Much of the...Ch. 1.E - Prob. 57ECh. 1.E - Prob. 58ECh. 1.E - Prob. 59ECh. 1.E - Prob. 60ECh. 1.E - Prob. 61ECh. 1.E - Conspiracy Theories. Choose some well-known...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, subject and related others by exploring similar questions and additional content below.Recommended textbooks for you
Discrete Mathematics and Its Applications ( 8th I...MathISBN:9781259676512Author:Kenneth H RosenPublisher:McGraw-Hill Education
Mathematics for Elementary Teachers with Activiti...MathISBN:9780134392790Author:Beckmann, SybillaPublisher:PEARSON
Thinking Mathematically (7th Edition)MathISBN:9780134683713Author:Robert F. BlitzerPublisher:PEARSON
Discrete Mathematics With ApplicationsMathISBN:9781337694193Author:EPP, Susanna S.Publisher:Cengage Learning,
Pathways To Math Literacy (looseleaf)MathISBN:9781259985607Author:David Sobecki Professor, Brian A. MercerPublisher:McGraw-Hill Education
Discrete Mathematics and Its Applications ( 8th I...
Math
ISBN:9781259676512
Author:Kenneth H Rosen
Publisher:McGraw-Hill Education
Mathematics for Elementary Teachers with Activiti...
Math
ISBN:9780134392790
Author:Beckmann, Sybilla
Publisher:PEARSON
Thinking Mathematically (7th Edition)
Math
ISBN:9780134683713
Author:Robert F. Blitzer
Publisher:PEARSON
Discrete Mathematics With Applications
Math
ISBN:9781337694193
Author:EPP, Susanna S.
Publisher:Cengage Learning,
Pathways To Math Literacy (looseleaf)
Math
ISBN:9781259985607
Author:David Sobecki Professor, Brian A. Mercer
Publisher:McGraw-Hill Education
Grade 12 and UG/ Introduction to logical statements and truth tables; Author: Dr Trefor Bazett;https://www.youtube.com/watch?v=q2eyZZK-OIk;License: Standard YouTube License, CC-BY