EECS-1019c: Assignment #1
|
|
|
- Donna Carpenter
- 6 years ago
- Views:
Transcription
1 Fall 2015 EECS-1019c: Assignment #1 w/ answers 1 of 7 Out of N points. EECS-1019c: Assignment #1 Section 1.1 [20pt] (Choose 10 of 20) 2. [10pt] Which of these are propositions? What are the truth values of those that are propositions? a. [2pt] Do not pass go. Not a proposition. (It is an imperative.) b. [2pt] What time is it? Not a proposition. (It is a question.) c. [2pt] There are no black flies in Maine. Is a proposition. False, according to the textbook. And it is factually false too. d. [2pt] 4 + x = 5. Not a proposition. x is a variable. e. [2pt] The moon is made of green cheese. Is a proposition. False. f. [2pt] 2 n 100. Not a proposition. n is a variable.
2 Fall 2015 EECS-1019c: Assignment #1 w/ answers 2 of [10pt] Let p, q, and r be the propositions. p: You have the flu. q: You miss the final examination. r: You pass the course. a. [2pt] p q If you have the flu, then you miss the final exam. b. [2pt] q r You pass the course if and only if you do not miss the final exam. c. [2pt] q r If you miss the final exam, then you do not pass the course. d. [2pt] p q r You have the flu, miss the final exam, or pass the course. e. [2pt] (p r) (q r) If you have the flu or miss the final exam, then you do not pass the course. f. [2pt] (p q) ( q r) You have the flu and miss the final exam, or you do not miss the final exam and pass the course.
3 Fall 2015 EECS-1019c: Assignment #1 w/ answers 3 of [10pt] Write each of these statements in the form if p, then q in English. [Hint: Refer to the list of common ways to express conditional statements provided in this section.] a. [2pt] I will remember to send you the address only if you send me an message. If you send me an message, then I will remember to send you the address. b. [2pt] To be a citizen of this country, it is sufficient that you were born in the United States. If you were born in the United States, then you can be a citizen of the United States. c. [2pt] If you keep your textbook, it will be a useful reference in your future courses. If you keep your textbook, then it will be a useful reference in your future courses. d. [2pt] The Red Wings will win the Stanley Cup if their goalie plays well. If the Red Wings s goalie plays well, they will win the Stanley Cup. e. [2pt] That you get the job implies that you had the best credentials. If you get the job, then you had the best credentials. f. [2pt] The beach erodes whenever there is a storm. If there is a storm, then beach erodes. g. [2pt] It is necessary to have a valid password to log on to the server. If you can log on to the server, then you must have a valid password. h. [2pt] You will reach the summit unless you begin your climb too late. If you begin your climb too late, then you will not reach the summit.
4 Fall 2015 EECS-1019c: Assignment #1 w/ answers 4 of 7 Section 1.2 [10pt] 10. [5pt] Are these system specifications consistent? Whenever the system software is being upgraded, users cannot access the file system. If users can access the file system, then they can save new files. If users cannot save new files, then the system software is not being upgraded. u: Software is being upgraded. a: Users can access the file system. f: Users can save files. The three specifications then are 1. u a 2. a f 3. f u The specifications are odd, but they are consistent. To see this, consider u is true (the system is being upgraded), a is false (users cannot access the file system), and f is true (users cannot access the file system). Specification (1) is true as u and a are true. Specification (2) is true as a is false. Specification (3) is true as f is false. This seems odd as we might think, How can the user save files if he or she cannot access the file system@? But nothing in the specifications states this. 16. [5pt] An explorer is captured by a group of cannibals. There are two types of cannibals those who always tell the truth and those who always lie. The cannibals will barbecue the explorer unless he can determine whether a particular cannibal always lies or always tells the truth. He is allowed to ask the cannibal exactly one question. a. Explain why the question Are you a liar? does not work. If he is a liar (that is, always lies), he will answer, Yes. If he is honest (that is, always tells the truth), he will answer, Yes. Thus, his answer does not help the explorer to know whether he is honest or is a liar. b. Find a question that the explorer can use to determine whether the cannibal always lies or always tells the truth. If I cannot determine whether you are honest or are a liar, will you barbecue me? If the cannibal is a liar, he must say, No. Otherwise, he would be telling the truth, which he cannot do. If the cannibal is honest, he must say, Yes. Otherwise, he would be lying, which he cannot do.
5 Fall 2015 EECS-1019c: Assignment #1 w/ answers 5 of 7 Section 1.3 [20pt] (Choose 10 of 13) 6. [2pt] Use a truth table to verify the first De Morgan law (p q) p q. p q (p q) p q T T F F T F F F F T F F F F T T 8. [8pt] Use De Morgans laws to find the negation of each of the following statements. a. [2pt] Kwame will take a job in industry or go to graduate school. Kwame will not take a job in industry, nor will he go to graduate school. b. [2pt] Yoshiko knows Java and calculus. Yoshiko does not know Java or she does not know calculus. c. [2pt] James is young and strong. James is not young or he is not strong. d. [2pt] Rita will move to Oregon or Washington. Rita will move neither to Oregon nor Washington.
6 Fall 2015 EECS-1019c: Assignment #1 w/ answers 6 of [8pt] Show that each of these conditional statements is a tautology by using truth tables. a. [2pt] [ p (p q)] q p q p q [ p (p q)] [ p (p q)] q T T T F T T F T F T F T T T T F F F T T b. [2pt] [(p q) (q r)] (p r) p q r (p q) (q r) (p q) (p r) [(p q) (q r)] (q r) (p r) T T T T T T T T T T F T F F F T T F T F T F T T T F F F T F F T F T T T T T T T F T F T F F T T F F T T T T T T F F F T T T T T c. [2pt] [p (p q)] q p q p q p (p q) [p (p q)] q T T T T T T F F F T F T T F T F F T F T d. [2pt] [(p q) (p q) (q r)] r p q r p q p q q r (p q) [(p q) (p q) (p q) (q r) (q r)] r T T T T T T T T T T F T T F F T T F T T F T F T T F F T F T F T F T T T T T T T F T F T T F F T F F T F T T F T F F F F T T F T
7 Fall 2015 EECS-1019c: Assignment #1 w/ answers 7 of [2pt] Show that (p q) ( p r) (q r) is a tautology. (p q) ( p r) 1 ( p q) (p r) [implication equiv.] 2 T (( p q) (p r)) [identity] 3 ( p p) (( p q) (p r)) [negation] 4 ( p ( p q) (p r)) (p ( p q) (p r)) [distributive] 5 (q F ) (F r) [modus ponens] 6 (q r) [domination] 34. [6pt] Find the dual of each of these compound propositions. a. [2pt] p q p q b. [2pt] p (q (r T )) p (q (r F )) c. [2pt] (p q) (q F ) (p q) (q T )
EECS 1028 M: Discrete Mathematics for Engineers
EECS 1028 M: Discrete Mathematics for Engineers Suprakash Datta Office: LAS 3043 Course page: http://www.eecs.yorku.ca/course/1028 Also on Moodle S. Datta (York Univ.) EECS 1028 W 18 1 / 26 Why Study Logic?
Exercises DEFINITION 7 EXAMPLE 12 EXAMPLE 13. TABLE 9 Table for the Bit Operators OR, AND, and XOR.
12 1 / The Foundations: Logic and Proofs TABLE 9 Table for the Bit Operators OR, AND, and XOR. x y x y x y x y 0 0 0 0 0 0 1 1 0 1 1 0 1 0 1 1 1 1 1 0 Information is often represented using bit strings,
Chapter Summary. Propositional Logic. Predicate Logic. Proofs. The Language of Propositions (1.1) Applications (1.2) Logical Equivalences (1.
Chapter 1 Chapter Summary Propositional Logic The Language of Propositions (1.1) Applications (1.2) Logical Equivalences (1.3) Predicate Logic The Language of Quantifiers (1.4) Logical Equivalences (1.4)
Chapter 1, Part I: Propositional Logic. With Question/Answer Animations
Chapter 1, Part I: Propositional Logic With Question/Answer Animations Chapter Summary Propositional Logic The Language of Propositions Applications Logical Equivalences Predicate Logic The Language of
CSE 20: Discrete Mathematics
Spring 2018 Summary Last time: Today: Logical connectives: not, and, or, implies Using Turth Tables to define logical connectives Logical equivalences, tautologies Some applications Proofs in propositional
PROPOSITIONAL CALCULUS
PROPOSITIONAL CALCULUS A proposition is a complete declarative sentence that is either TRUE (truth value T or 1) or FALSE (truth value F or 0), but not both. These are not propositions! Connectives and
DISCRETE MATHEMATICS BA202
TOPIC 1 BASIC LOGIC This topic deals with propositional logic, logical connectives and truth tables and validity. Predicate logic, universal and existential quantification are discussed 1.1 PROPOSITION
University of Illinois at Chicago Department of Computer Science. Final Examination. CS 151 Mathematical Foundations of Computer Science Fall 2012
University of Illinois at Chicago Department of Computer Science Final Examination CS 151 Mathematical Foundations of Computer Science Fall 01 Thursday, October 18, 01 Name: Email: Print your name and
Math 55 Homework 2 solutions
Math 55 Homework solutions Section 1.3. 6. p q p q p q p q (p q) T T F F F T F T F F T T F T F T T F T F T F F T T T F T 8. a) Kwame will not take a job in industry and not go to graduate school. b) Yoshiko
MAT2345 Discrete Math
Fall 2013 General Syllabus Schedule (note exam dates) Homework, Worksheets, Quizzes, and possibly Programs & Reports Academic Integrity Do Your Own Work Course Web Site: www.eiu.edu/~mathcs Course Overview
MATH 2001 MIDTERM EXAM 1 SOLUTION
MATH 2001 MIDTERM EXAM 1 SOLUTION FALL 2015 - MOON Do not abbreviate your answer. Write everything in full sentences. Except calculators, any electronic devices including laptops and cell phones are not
1.1 Language and Logic
c Oksana Shatalov, Spring 2018 1 1.1 Language and Logic Mathematical Statements DEFINITION 1. A proposition is any declarative sentence (i.e. it has both a subject and a verb) that is either true or false,
HOMEWORK 1: SOLUTIONS - MATH 215 INSTRUCTOR: George Voutsadakis
HOMEWORK 1: SOLUTIONS - MATH 215 INSTRUCTOR: George Voutsadakis Problem 1 Make truth tables for the propositional forms (P Q) (P R) and (P Q) (R S). Solution: P Q R P Q P R (P Q) (P R) F F F F F F F F
n Empty Set:, or { }, subset of all sets n Cardinality: V = {a, e, i, o, u}, so V = 5 n Subset: A B, all elements in A are in B
Discrete Math Review Discrete Math Review (Rosen, Chapter 1.1 1.7, 5.5) TOPICS Sets and Functions Propositional and Predicate Logic Logical Operators and Truth Tables Logical Equivalences and Inference
Announcements CompSci 102 Discrete Math for Computer Science
Announcements CompSci 102 Discrete Math for Computer Science Read for next time Chap. 1.4-1.6 Recitation 1 is tomorrow Homework will be posted by Friday January 19, 2012 Today more logic Prof. Rodger Most
2/2/2018. CS 103 Discrete Structures. Chapter 1. Propositional Logic. Chapter 1.1. Propositional Logic
CS 103 Discrete Structures Chapter 1 Propositional Logic Chapter 1.1 Propositional Logic 1 1.1 Propositional Logic Definition: A proposition :is a declarative sentence (that is, a sentence that declares
Chapter 1: Formal Logic
Chapter 1: Formal Logic Dr. Fang (Daisy) Tang ftang@cpp.edu www.cpp.edu/~ftang/ CS 130 Discrete Structures Logic: The Foundation of Reasoning Definition: the foundation for the organized, careful method
n logical not (negation) n logical or (disjunction) n logical and (conjunction) n logical exclusive or n logical implication (conditional)
Discrete Math Review Discrete Math Review (Rosen, Chapter 1.1 1.6) TOPICS Propositional Logic Logical Operators Truth Tables Implication Logical Equivalence Inference Rules What you should know about propositional
Propositional Logic 1
Propositional Logic 1 Section Summary Propositions Connectives Negation Conjunction Disjunction Implication; contrapositive, inverse, converse Biconditional Truth Tables 2 Propositions A proposition is
1.1 Language and Logic
c Oksana Shatalov, Fall 2017 1 1.1 Language and Logic Mathematical Statements DEFINITION 1. A proposition is any declarative sentence (i.e. it has both a subject and a verb) that is either true or false,
MAT 101 Exam 2 Logic (Part I) Fall Circle the correct answer on the following multiple-choice questions.
Name: MA 101 Exam 2 Logic (Part I) all 2017 Multiple-Choice Questions [5 pts each] Circle the correct answer on the following multiple-choice questions. 1. Which of the following is not a statement? a)
CSC Discrete Math I, Spring Propositional Logic
CSC 125 - Discrete Math I, Spring 2017 Propositional Logic Propositions A proposition is a declarative sentence that is either true or false Propositional Variables A propositional variable (p, q, r, s,...)
Chapter 1, Part I: Propositional Logic. With Question/Answer Animations
Chapter 1, Part I: Propositional Logic With Question/Answer Animations Chapter Summary! Propositional Logic! The Language of Propositions! Applications! Logical Equivalences! Predicate Logic! The Language
1.3 Propositional Equivalences
1 1.3 Propositional Equivalences The replacement of a statement with another statement with the same truth is an important step often used in Mathematical arguments. Due to this methods that produce propositions
2. The Logic of Compound Statements Summary. Aaron Tan August 2017
2. The Logic of Compound Statements Summary Aaron Tan 21 25 August 2017 1 2. The Logic of Compound Statements 2.1 Logical Form and Logical Equivalence Statements; Compound Statements; Statement Form (Propositional
Logical Operators. Conjunction Disjunction Negation Exclusive Or Implication Biconditional
Logical Operators Conjunction Disjunction Negation Exclusive Or Implication Biconditional 1 Statement meaning p q p implies q if p, then q if p, q when p, q whenever p, q q if p q when p q whenever p p
ECOM Discrete Mathematics
ECOM 2311- Discrete Mathematics Chapter # 1 : The Foundations: Logic and Proofs Fall, 2013/2014 ECOM 2311- Discrete Mathematics - Ch.1 Dr. Musbah Shaat 1 / 85 Outline 1 Propositional Logic 2 Propositional
Section 1.3. Let I be a set. When I is used in the following context,
Section 1.3. Let I be a set. When I is used in the following context, {B i } i I, we call I the index set. The set {B i } i I is the family of sets of the form B i where i I. One could also use set builder
Artificial Intelligence: Knowledge Representation and Reasoning Week 2 Assessment 1 - Answers
Artificial Intelligence: Knowledge Representation and Reasoning Week 2 Assessment 1 - Answers 1. When is an inference rule {a1, a2,.., an} c sound? (b) a. When ((a1 a2 an) c) is a tautology b. When ((a1
1) Let h = John is healthy, w = John is wealthy and s = John is wise Write the following statement is symbolic form
Math 378 Exam 1 Spring 2009 Show all Work Name 1) Let h = John is healthy, w = John is wealthy and s = John is wise Write the following statement is symbolic form a) In order for John to be wealthy it
Chapter 1, Section 1.1 Propositional Logic
Discrete Structures Chapter 1, Section 1.1 Propositional Logic These class notes are based on material from our textbook, Discrete Mathematics and Its Applications, 6 th ed., by Kenneth H. Rosen, published
Indian Institute of Information Technology Design and Manufacturing, Kancheepuram Chennai , India. Assignment 1 - Propositional Logic
Indian Institute of Information Technology Design and Manufacturing, Kancheepuram Chennai 600 127, India An Autonomous Institute under MHRD, Govt of India An Institute of National Importance www.iiitdm.ac.in
Math.3336: Discrete Mathematics. Applications of Propositional Logic
Math.3336: Discrete Mathematics Applications of Propositional Logic Instructor: Dr. Blerina Xhabli Department of Mathematics, University of Houston https://www.math.uh.edu/ blerina Email: blerina@math.uh.edu
CHAPTER 1 The Foundations: Logic and Proofs
Section 1.1 Propositional Logic 1 SECTION 1.1 CHAPTER 1 The Foundations: Logic and Proofs Propositional Logic 2. Propositions must have clearly defined truth values, so a proposition must be a declarative
Unit 1. Propositional Logic Reading do all quick-checks Propositional Logic: Ch. 2.intro, 2.2, 2.3, 2.4. Review 2.9
Unit 1. Propositional Logic Reading do all quick-checks Propositional Logic: Ch. 2.intro, 2.2, 2.3, 2.4. Review 2.9 Typeset September 23, 2005 1 Statements or propositions Defn: A statement is an assertion
10/5/2012. Logic? What is logic? Propositional Logic. Propositional Logic (Rosen, Chapter ) Logic is a truth-preserving system of inference
Logic? Propositional Logic (Rosen, Chapter 1.1 1.3) TOPICS Propositional Logic Truth Tables Implication Logical Proofs 10/1/12 CS160 Fall Semester 2012 2 What is logic? Logic is a truth-preserving system
COM S 330 Homework 02 Solutions. Type your answers to the following questions and submit a PDF file to Blackboard. One page per problem.
Type your answers to the following questions and submit a PDF file to Blackboard. One page per problem. Problem 1. [5pts] Construct a truth table for the compound proposition (p q) ( p r). Solution: (only
CHAPTER 1 - LOGIC OF COMPOUND STATEMENTS
CHAPTER 1 - LOGIC OF COMPOUND STATEMENTS 1.1 - Logical Form and Logical Equivalence Definition. A statement or proposition is a sentence that is either true or false, but not both. ex. 1 + 2 = 3 IS a statement
Inference and Proofs (1.6 & 1.7)
EECS 203 Spring 2016 Lecture 4 Page 1 of 9 Introductory problem: Inference and Proofs (1.6 & 1.7) As is commonly the case in mathematics, it is often best to start with some definitions. An argument for
Discrete Structures & Algorithms. Propositional Logic EECE 320 // UBC
Discrete Structures & Algorithms Propositional Logic EECE 320 // UBC 1 Review of last lecture Pancake sorting A problem with many applications Bracketing (bounding a function) Proving bounds for pancake
Tautologies, Contradictions, and Contingencies
Section 1.3 Tautologies, Contradictions, and Contingencies A tautology is a proposition which is always true. Example: p p A contradiction is a proposition which is always false. Example: p p A contingency
MATH 215 DISCRETE MATHEMATICS INSTRUCTOR: P. WENG
MATH 215 DISCRETE MATHEMATICS INSTRUCTOR: P. WENG Suggested Problems for Logic and Proof The following problems are from Discrete Mathematics and Its Applications by Kenneth H. Rosen. 1. Which of these
The Foundations: Logic and Proofs. Part I
The Foundations: Logic and Proofs Part I Chapter Summary Propositional Logic n The Language of Propositions n Applications n Logical Equivalences Predicate Logic n The Language of Quantifiers n Logical
Discrete Mathematics
Discrete Mathematics Discrete mathematics is devoted to the study of discrete or distinct unconnected objects. Classical mathematics deals with functions on real numbers. Real numbers form a continuous
Logic. Propositional Logic: Syntax
Logic Propositional Logic: Syntax Logic is a tool for formalizing reasoning. There are lots of different logics: probabilistic logic: for reasoning about probability temporal logic: for reasoning about
Lecture 2. Logic Compound Statements Conditional Statements Valid & Invalid Arguments Digital Logic Circuits. Reading (Epp s textbook)
Lecture 2 Logic Compound Statements Conditional Statements Valid & Invalid Arguments Digital Logic Circuits Reading (Epp s textbook) 2.1-2.4 1 Logic Logic is a system based on statements. A statement (or
Propositional Logic. Fall () Propositional Logic Fall / 30
Propositional Logic Fall 2013 () Propositional Logic Fall 2013 1 / 30 1 Introduction Learning Outcomes for this Presentation 2 Definitions Statements Logical connectives Interpretations, contexts,... Logically
Why Learning Logic? Logic. Propositional Logic. Compound Propositions
Logic Objectives Propositions and compound propositions Negation, conjunction, disjunction, and exclusive or Implication and biconditional Logic equivalence and satisfiability Application of propositional
MATH 13 SAMPLE FINAL EXAM SOLUTIONS
MATH 13 SAMPLE FINAL EXAM SOLUTIONS WINTER 2014 Problem 1 (15 points). For each statement below, circle T or F according to whether the statement is true or false. You do NOT need to justify your answers.
Methods of Proof. 1.6 Rules of Inference. Argument and inference 12/8/2015. CSE2023 Discrete Computational Structures
Methods of Proof CSE0 Discrete Computational Structures Lecture 4 When is a mathematical argument correct? What methods can be used to construct mathematical arguments? Important in many computer science
Mathematical Reasoning (Part I) 1
c Oksana Shatalov, Spring 2017 1 Mathematical Reasoning (art I) 1 Statements DEFINITION 1. A statement is any declarative sentence 2 that is either true or false, but not both. A statement cannot be neither
MACM 101 Discrete Mathematics I. Exercises on Propositional Logic. Due: Tuesday, September 29th (at the beginning of the class)
MACM 101 Discrete Mathematics I Exercises on Propositional Logic. Due: Tuesday, September 29th (at the beginning of the class) SOLUTIONS 1. Construct a truth table for the following compound proposition:
Discrete Mathematics Recitation Course 張玟翔
Discrete Mathematics Recitation Course 1 2013.03.07 張玟翔 Acknowledge 鄭安哲 TA 2012 About Myself English Name : Zak Chinese Name : 張玟翔 Mail:o0000032@yahoo.com.tw Lab: ED612 1-1 Propositional Logic 1-1 Ex.2
Section 1.1 Propositional Logic. proposition : true = T (or 1) or false = F (or 0) (binary logic) the moon is made of green cheese
Section 1.1 Propositional Logic proposition : true = T (or 1) or false = F (or 0) (binary logic) the moon is made of green cheese go to town! X - imperative What time is it? X - interrogative propositional
Logic and Proofs. Jan COT3100: Applications of Discrete Structures Jan 2007
COT3100: Propositional Equivalences 1 Logic and Proofs Jan 2007 COT3100: Propositional Equivalences 2 1 Translating from Natural Languages EXAMPLE. Translate the following sentence into a logical expression:
Formal Logic. Critical Thinking
ormal Logic Critical hinking Recap: ormal Logic If I win the lottery, then I am poor. I win the lottery. Hence, I am poor. his argument has the following abstract structure or form: If P then Q. P. Hence,
Predicate Logic. Andreas Klappenecker
Predicate Logic Andreas Klappenecker Predicates A function P from a set D to the set Prop of propositions is called a predicate. The set D is called the domain of P. Example Let D=Z be the set of integers.
Examples: P: it is not the case that P. P Q: P or Q P Q: P implies Q (if P then Q) Typical formula:
Logic: The Big Picture Logic is a tool for formalizing reasoning. There are lots of different logics: probabilistic logic: for reasoning about probability temporal logic: for reasoning about time (and
Logic, Sets, and Proofs
Logic, Sets, and Proofs David A. Cox and Catherine C. McGeoch Amherst College 1 Logic Logical Operators. A logical statement is a mathematical statement that can be assigned a value either true or false.
The statement calculus and logic
Chapter 2 Contrariwise, continued Tweedledee, if it was so, it might be; and if it were so, it would be; but as it isn t, it ain t. That s logic. Lewis Carroll You will have encountered several languages
3/29/2017. Logic. Propositions and logical operations. Main concepts: propositions truth values propositional variables logical operations
Logic Propositions and logical operations Main concepts: propositions truth values propositional variables logical operations 1 Propositions and logical operations A proposition is the most basic element
Logic Overview, I. and T T T T F F F T F F F F
Logic Overview, I DEFINITIONS A statement (proposition) is a declarative sentence that can be assigned a truth value T or F, but not both. Statements are denoted by letters p, q, r, s,... The 5 basic logical
Supplementary exercises in propositional logic
Supplementary exercises in propositional logic The purpose of these exercises is to train your ability to manipulate and analyze logical formulas. Familiarize yourself with chapter 7.3-7.5 in the course
2/13/2012. Logic: Truth Tables. CS160 Rosen Chapter 1. Logic?
Logic: Truth Tables CS160 Rosen Chapter 1 Logic? 1 What is logic? Logic is a truth-preserving system of inference Truth-preserving: If the initial statements are true, the inferred statements will be true
Logic. Propositional Logic: Syntax. Wffs
Logic Propositional Logic: Syntax Logic is a tool for formalizing reasoning. There are lots of different logics: probabilistic logic: for reasoning about probability temporal logic: for reasoning about
ANS: If you are in Kwangju then you are in South Korea but not in Seoul.
Math 15 - Spring 2017 - Homework 1.1 and 1.2 Solutions 1. (1.1#1) Let the following statements be given. p = There is water in the cylinders. q = The head gasket is blown. r = The car will start. (a) Translate
Readings: Conjecture. Theorem. Rosen Section 1.5
Readings: Conjecture Theorem Lemma Lemma Step 1 Step 2 Step 3 : Step n-1 Step n a rule of inference an axiom a rule of inference Rosen Section 1.5 Provide justification of the steps used to show that a
Ella failed to drop the class. Ella dropped the class.
Propositional logic In many cases, a sentence is built up from one or more simpler sentences. To see what follows from such a complicated sentence, it is helpful to distinguish the simpler sentences from
A statement is a sentence that is definitely either true or false but not both.
5 Logic In this part of the course we consider logic. Logic is used in many places in computer science including digital circuit design, relational databases, automata theory and computability, and artificial
Recitation Week 3. Taylor Spangler. January 23, 2012
Recitation Week 3 Taylor Spangler January 23, 2012 Questions about Piazza, L A TEX or lecture? Questions on the homework? (Skipped in Recitation) Let s start by looking at section 1.1, problem 15 on page
CSCI Homework Set 1 Due: September 11, 2018 at the beginning of class
CSCI 3310 - Homework Set 1 Due: September 11, 2018 at the beginning of class ANSWERS Please write your name and student ID number clearly at the top of your homework. If you have multiple pages, please
Packet #1: Logic & Proofs. Applied Discrete Mathematics
Packet #1: Logic & Proofs Applied Discrete Mathematics Table of Contents Course Objectives Page 2 Propositional Calculus Information Pages 3-13 Course Objectives At the conclusion of this course, you should
PSU MATH RELAYS LOGIC & SET THEORY 2017
PSU MATH RELAYS LOGIC & SET THEORY 2017 MULTIPLE CHOICE. There are 40 questions. Select the letter of the most appropriate answer and SHADE in the corresponding region of the answer sheet. If the correct
CPSC 121 Midterm 1 Tuesday, October 11th, 2011
CPSC 121 Midterm 1 Tuesday, October 11th, 2011 [1] 1. Do you want tutorial attendance to be mandatory for you? If you answer yes, then 1% of tuts attended your course grade will be calculated with min(100%,
Definition 2. Conjunction of p and q
Proposition Propositional Logic CPSC 2070 Discrete Structures Rosen (6 th Ed.) 1.1, 1.2 A proposition is a statement that is either true or false, but not both. Clemson will defeat Georgia in football
LOGIC CONNECTIVES. Students who have an ACT score of at least 30 OR a GPA of at least 3.5 can receive a college scholarship.
LOGIC In mathematical and everyday English language, we frequently use logic to express our thoughts verbally and in writing. We also use logic in numerous other areas such as computer coding, probability,
Discrete Structures of Computer Science Propositional Logic I
Discrete Structures of Computer Science Propositional Logic I Gazihan Alankuş (Based on original slides by Brahim Hnich) July 26, 2012 1 Use of Logic 2 Statements 3 Logic Connectives 4 Truth Tables Use
Compound Propositions
Discrete Structures Compound Propositions Producing new propositions from existing propositions. Logical Operators or Connectives 1. Not 2. And 3. Or 4. Exclusive or 5. Implication 6. Biconditional Truth
Section 1.1 Propositions
Set Theory & Logic Section 1.1 Propositions Fall, 2009 Section 1.1 Propositions In Chapter 1, our main goals are to prove sentences about numbers, equations or functions and to write the proofs. Definition.
Predicate Logic & Quantification
Predicate Logic & Quantification Things you should do Homework 1 due today at 3pm Via gradescope. Directions posted on the website. Group homework 1 posted, due Tuesday. Groups of 1-3. We suggest 3. In
COMP219: Artificial Intelligence. Lecture 19: Logic for KR
COMP219: Artificial Intelligence Lecture 19: Logic for KR 1 Overview Last time Expert Systems and Ontologies Today Logic as a knowledge representation scheme Propositional Logic Syntax Semantics Proof
KOÇ UNIVERSITY EQUR 121 FIRST EXAM March 3, 2014
KOÇ UNIVERSITY EQUR 121 FIRST EXAM March 3, 2014 Burak Özbaǧcı Duration of Exam: 75 minutes INSTRUCTIONS: No calculators may be used on the test. No questions, and talking allowed. You must always explain
Propositional Logic. Spring Propositional Logic Spring / 32
Propositional Logic Spring 2016 Propositional Logic Spring 2016 1 / 32 Introduction Learning Outcomes for this Presentation Learning Outcomes... At the conclusion of this session, we will Define the elements
Chapter 1: The Logic of Compound Statements. January 7, 2008
Chapter 1: The Logic of Compound Statements January 7, 2008 Outline 1 1.1 Logical Form and Logical Equivalence 2 1.2 Conditional Statements 3 1.3 Valid and Invalid Arguments Central notion of deductive
Logic as a Tool Chapter 1: Understanding Propositional Logic 1.1 Propositions and logical connectives. Truth tables and tautologies
Logic as a Tool Chapter 1: Understanding Propositional Logic 1.1 Propositions and logical connectives. Truth tables and tautologies Valentin Stockholm University September 2016 Propositions Proposition:
Chapter 4, Logic using Propositional Calculus Handout
ECS 20 Chapter 4, Logic using Propositional Calculus Handout 0. Introduction to Discrete Mathematics. 0.1. Discrete = Individually separate and distinct as opposed to continuous and capable of infinitesimal
HANDOUT AND SET THEORY. Ariyadi Wijaya
HANDOUT LOGIC AND SET THEORY Ariyadi Wijaya Mathematics Education Department Faculty of Mathematics and Natural Science Yogyakarta State University 2009 1 Mathematics Education Department Faculty of Mathematics
Mathematical Logic Prof. Arindama Singh Department of Mathematics Indian Institute of Technology, Madras. Lecture - 15 Propositional Calculus (PC)
Mathematical Logic Prof. Arindama Singh Department of Mathematics Indian Institute of Technology, Madras Lecture - 15 Propositional Calculus (PC) So, now if you look back, you can see that there are three
2.2: Logical Equivalence: The Laws of Logic
Example (2.7) For primitive statement p and q, construct a truth table for each of the following compound statements. a) p q b) p q Here we see that the corresponding truth tables for two statement p q
III. Elementary Logic
III. Elementary Logic The Language of Mathematics While we use our natural language to transmit our mathematical ideas, the language has some undesirable features which are not acceptable in mathematics.
2. Find all combinations of truth values for p, q and r for which the statement p (q (p r)) is true.
1 Logic Questions 1. Suppose that the statement p q is false. Find all combinations of truth values of r and s for which ( q r) ( p s) is true. 2. Find all combinations of truth values for p, q and r for
COMP 2600: Formal Methods for Software Engineeing
COMP 2600: Formal Methods for Software Engineeing Dirk Pattinson Semester 2, 2013 What do we mean by FORMAL? Oxford Dictionary in accordance with convention or etiquette or denoting a style of writing
Logical Reasoning. Chapter Statements and Logical Operators
Chapter 2 Logical Reasoning 2.1 Statements and Logical Operators Preview Activity 1 (Compound Statements) Mathematicians often develop ways to construct new mathematical objects from existing mathematical
Department of Computer Science & Software Engineering Comp232 Mathematics for Computer Science
Department of Computer Science & Software Engineering Comp232 Mathematics for Computer Science Fall 2018 Assignment 1. Solutions 1. For each of the following statements use a truth table to determine whether
Mathematics for Computer Science Exercises from Chapter 3
Mathematics for Computer Science Exercises from Chapter 3 Silvio Capobianco Last update: 19 September 2018 Problems from Section 3.1 Problem 3.2. Your class has a textbook and a final exam. Let P, Q, and
software design & management Gachon University Chulyun Kim
Gachon University Chulyun Kim 2 Outline Propositional Logic Propositional Equivalences Predicates and Quantifiers Nested Quantifiers Rules of Inference Introduction to Proofs 3 1.1 Propositional Logic
1.1 Statements and Compound Statements
Chapter 1 Propositional Logic 1.1 Statements and Compound Statements A statement or proposition is an assertion which is either true or false, though you may not know which. That is, a statement is something
Discrete Mathematics and Its Applications
Discrete Mathematics and Its Applications Lecture 1: The Foundations: Logic and Proofs (1.3-1.5) MING GAO DASE @ ECNU (for course related communications) mgao@dase.ecnu.edu.cn Sep. 19, 2017 Outline 1 Logical
LOGIC. Name: Teacher: Pd: Page 1
LOGIC Name: Teacher: Pd: Page 1 Table of Contents Day 1 Introduction to Logic HW pages 8-10 Day 2 - Conjunction, Disjunction, Conditionals, and Biconditionals HW pages 16-17 #13-34 all, #35 65(every other
Midterm: Sample 3. ECS20 (Fall 2017) 1) Using truth tables, establish for each of the two propositions below if it is a tautology, a contradiction
Midterm: Sample 3 ECS20 (Fall 2017) Part I: logic 1) Using truth tables, establish for each of the two propositions below if it is a tautology, a contradiction or neither. 1) [p (q r)] [((r p) q) q] Let