'Disjunctive syllogism' diaporamas de présentation

Dr. Robert Barnard

Philosophy 103 Linguistics 103 Yet, still, even further more, expanded, Introductory Logic: Critical Thinking. Dr. Robert Barnard. Last Time : . Definitions Lexical Theoretical Precising Pursuasive Logical Form Form and Validity. Plan for Today. Deductive Argument Forms

431 views • 34 slides

Dr. Robert Barnard

Philosophy 103 Linguistics 103 Yet, still, even further more, expanded, Introductory Logic: Critical Thinking. Dr. Robert Barnard. Last Time : . Definitions Lexical Theoretical Precising Pursuasive Logical Form Form and Validity. Plan for Today. Deductive Argument Forms

442 views • 34 slides

Syllogisms and Visual Rhetoric

Syllogisms and Visual Rhetoric. Danna Prather. Syllogistic form puts an argument into three statements in order to illustrate the data, claim, and warrant, but uses special terms to designate these. Syllogistic Form- Categorical Syllogisms.

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Rules of Inference

870 views • 24 slides

Deductive Arguments

Deductive Arguments. Raphael Christopher. Deductive Arguments. reaching an answer or a decision by thinking carefully about the known facts. Deductive Arguments. The premise is true so the arguments must be true too Properly formed deductive arguments ? valid arguments

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Demonstrating the validity of an argument using syllogisms

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Lecture 1.3: Predicate Logic, and Rules of Inference*

Lecture 1.3: Predicate Logic, and Rules of Inference*. CS 250, Discrete Structures, Fall 2011 Nitesh Saxena * Adopted from previous lectures by Cinda Heeren. Course Admin. Slides from last lecture were posted Both ppt and pdf Expect HW1 to be coming in a week from now

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Common logical forms

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Prove that this argument is valid using valid argument forms (syllogisms)

Prove that this argument is valid using valid argument forms (syllogisms). Disjunctive Syllogism. no. Is there a ~ p ? . Is there a ~ ~ r ? . no. Move on to the next premise. Modus Ponens. Modus Tollens. Is there a p ? q ? . Is there a ~ s ? . yes . no.

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Logic

Logic. Lesson 3: practice with valid/invalid; more on inductive arguments. BR: Answer all the following on your own paper. Open note. No discussing.

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Section 2.3 Valid and Invalid Arguments

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SYLLOGISMS

SYLLOGISMS. DISJUNCTIVE SYLLOGISM. MODUS PONENS. ~. ?. ?. MODUS TOLLENS. ~. ~. ?. MODUS PONENS. ?. MODUS PONENS. ?. MODUS TOLLENS. ~. ~. ?. MODUS TOLLENS. ~. ~. ?. DISJUNCTIVE SYLLOGISM. ~. ?. DISJUNCTIVE SYLLOGISM. ~. ?.

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SYLLOGISMS

SYLLOGISMS. DISJUNCTIVE SYLLOGISM. MODUS PONENS. ~. ?. ?. MODUS TOLLENS. ~. ~. ?. MODUS PONENS. ?. MODUS PONENS. ?. MODUS TOLLENS. ~. ~. ?. MODUS TOLLENS. ~. ~. ?. DISJUNCTIVE SYLLOGISM. ~. ?. DISJUNCTIVE SYLLOGISM. ~. ?.

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Discussion #9 Tautologies and Contradictions

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Chapter 6: Strategies and Derived Rules

Chapter 6: Strategies and Derived Rules. 80-210: Logic & Proofs July 14, 2009 Karin Howe. Using Strategies Strategically. HAMMER!! first (&ER, &EL, ?E)

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Disjunctive Syllogism

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DISJUNCTIVE SYLLOGISM

P or Q not P therefore Q. DISJUNCTIVE SYLLOGISM. This box contains and elephant or a butterfly. This box contains and elephant or a butterfly. It is not an elephant. This box contains and elephant or a butterfly. It is not an elephant.

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Island of Knights and Knaves

195 views • 4 slides