'Valid argument forms' diaporamas de présentation

Predicate Logic

Predicate Logic. Truth-table reminders. The problem people had the most trouble with was 1e: construct a truth-table for: (P & (~Q & R))

868 views • 73 slides

Introductory Logic PHI 120

707 views • 59 slides

6.6 Argument Forms

6.6 Argument Forms. A sound deductive argument is valid and has true premises. A deductive argument is one in which it is claimed that the conclusion necessarily follows from the premises. That is, it is claimed that it is valid. .

694 views • 58 slides

Logic

768 views • 54 slides

Introductory Logic PHI 120

641 views • 52 slides

Philosophy 120 Symbolic Logic I H. Hamner Hill CSTL-CLA.SEMO.EDU/HILL/PL120

Philosophy 120 Symbolic Logic I H. Hamner Hill CSTL-CLA.SEMO.EDU/HILL/PL120. Logic is the science of arguments. Separate good arguments from bad ones Identify the characteristics of good arguments (validity and soundness) Produce good arguments of our own. Student Objectives.

557 views • 35 slides

Chapter Four

Chapter Four. Proofs. 1. Argument Forms. An argument form is a group of sentence forms such that all of its substitution instances are arguments. Argument Forms, continued. If an argument form has no substitution instances that are invalid, it is said to be a valid argument form .

424 views • 28 slides

Valid and Invalid Arguments

Valid and Invalid Arguments. Lecture 3 Section 1.3 Fri, Jan 14, 2005. Arguments. An argument is a sequence of statements. The last statement is the conclusion . All the other statements are the premises . A mathematical proof is an argument. Argument Forms.

1.59k views • 25 slides

The Logic of Quantified Statements

888 views • 24 slides

LITERACY IN UTAH CHINESE IMMERSION

370 views • 23 slides

Discrete Structures

519 views • 16 slides

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.

411 views • 15 slides

Valid and Invalid arguments

Valid and Invalid arguments. Definition of Argument. Sequence of statements: Statement 1; Statement 2; Therefore , Statement 3 . Statements 1 and 2 are called premises . Statement 3 is called conclusion . Examples of Arguments. It is raining or it is snowing;

1.29k views • 12 slides

Chapter 22: Common Propositional Argument Forms

Chapter 22: Common Propositional Argument Forms. Introductory Remarks (p. 220). This chapter introduces some of the most commonly used deductive argument forms. The focus is on valid forms, but there are also three common formal fallacies .

394 views • 11 slides

Section 2.3 Valid and Invalid Arguments

433 views • 10 slides

Chapter 6.6: Enthymemes

669 views • 6 slides