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## Logic

by: Fletcher Wolf II

51

0

6

# Logic PHI 1306

Fletcher Wolf II
Baylor University
GPA 3.89

Mark Boone

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COURSE
PROF.
Mark Boone
TYPE
Class Notes
PAGES
6
WORDS
KARMA
25 ?

## Popular in PHIL-Philosophy

This 6 page Class Notes was uploaded by Fletcher Wolf II on Saturday October 3, 2015. The Class Notes belongs to PHI 1306 at Baylor University taught by Mark Boone in Fall. Since its upload, it has received 51 views. For similar materials see /class/217958/phi-1306-baylor-university in PHIL-Philosophy at Baylor University.

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Date Created: 10/03/15
Professor Mark J Boone Definitions PHI 130607 Intro to Logic Logic is the study of methods for evaluating Whether the premises of an argument adequately support its conclusion Validi is the quality of an argument in which the conclusion mustbe true if the premises are true Strength is the quality of an argument in which the conclusion is probably true if the premises are true Deductive logic is the study of methods for testing Whether an argument is valid Inductive logic is the study of methods for testing Whether an argument is strong An immediate inference is an argument in which a conclusion is based on just one premise A term is distributed in a categorical statement if the statement says something about every member of the class denoted by the term Basic methods BIG PICTURE study sheet method method does works on appears in Counterexample method tests for invalidity some invalid arguments with a tight form 12 Famous forms tests for validity and any argument using one of the famous forms 13 invalidity Methods pertaining to categorical logic method method does works on appears in The method of immediate tests for validity and immediate inferences using categorical statements 52 53 inferences invalidity Mood and figure of categorical tests for validity and any categorical syllogism in standard form 61 syllogisms invalidity Venn diagrams for categorical tests for validity and immediate inferences using categorical statements but only when we 62 statements inva idity assume the modem standpoint Venn diagrams for categorical tests for validity and any categorical syllogism in standard form but only when we assume the 63 Professor Mark J Boone PHI 130607 Intro to Logic BIG PICTURE study sheet syllogisms invalidity modern standpoint The five rules tests for validity and any categorical syllogism in standard form but only when we assume the 67 inva idity modern standpoint Methods using symbolic logic method method does works on appears in Full truth table method tests for validity and any symbolic argument in standard form 73 invalidity Abbreviated truth table method tests for validity and any symbolic argument in standard form 74 invalidity Direct proof proves validity most symbolic valid argument in standard form 8 l 83 Conditional proof proves validity any symbolic valid argument in standard form 84 Reducno ad absurdum proof prove validity any symbolic valid argument in standard form 85 Methods mostly pertaining to inductive logic method Method does works on appears in Using definitions identifies merely verbal merely verbal disputes persuasive definitions and equivocations in some 32 33 disputes persuasive inductive and in some deductive arguments definitions and equivocations Informal fallacies tests for weakness many inductive arguments 41 42 43 Analyzing arguments from tests for weakness and arguments from authority 102 authority strength Professor Mark J Boone PHI 130607 Intro to Logic BIG PICTURE study sheet Analyzing arguments from tests for weakness and arguments from analogy 104 analogy strengt Professor Mark J Boone PHI 130608 Intro to Logic List of logical methods List of logical methods Two basic methods Definitions to remember I Logic is the study of methods for evaluating Whether the premises of an argument adequately support its conclusron I Validity is the quality of an argument in which the conclusion mustbe true if the premises are true I Deductive logic is the study of methods for testing Whether an argument is valid method works on method does appears in Counterexample method some invalid arguments tests for invalidity only 12 Famous forms any argument using one of the tests for validity and invalidity 13 famous forms Methods using categorical logic Definitions to remember I An immediate inference is an argument in which a conclusion is based on just one premise I A universal statement has existential import if it implies that the categories it is dealing with exist I A term is distributed in a categorical statement if the statement says something about every member of the class denoted by the term method works on method does appears in and by the way The method of immediate inferences in tests for validity 52 53 fewer immediate immediate categorical logic and invalidity inferences are valid inferences from the modern standpoint Venn diagrams for immediate inferences in tests for validity 62 this method categorical categorical logic and invalidity assumes the modern statements standpoint The moodfigure any categorical syllogism tests for validity 61 we can use this combination method in standard form and invalidity method from either the traditional or the modern standpoint Venn diagrams for any categorical syllogism tests for validity 63 this method categorical in standard form and invalidity assumes the modern syllogisms standpoint The five rules any categorical syllogism tests for validity 67 this method in standard form and invalidity assumes the modern standpoint Professor Mark J Boone PHI 130608 Intro to Logic List of logical methods Methods using statement logic method notes on relationship to other method works on does appears in methods Full truth any standardform tests for 73 7 describes a possible counterexample table method argument that can be validity and giving us a clue for constructing a real translated into invalidity counterexample statem ent logic Abbreviated any standardform tests for 74 7 describes a possible counterexample truth table argument that can be validity and giving us a clue for constructing a real method translated into invalidity counterexample Staten ent log 7 shorter than the full truth table method because it doesn t need to examine every possibility i like the reduciio proof begins by assuming invalidity and proceeds to see if the assumption checks out Direct proof many valid standard proves 8183 form argument that validity can be translated into statement logic Conditional m valid standard proves 84 proof form argument that validity can be translated into statement logic Reduciio m valid standard proves 85 i like the abbreviate truth table proof form argument that validity method the reduciio strategy allows us can be translated into statement logic to assume invalidity we then prove validity by showing that the assumption does not check out Professor Mark J Boone PHI 130608 Intro to Logic List of logical methods IV A few methods using informal logic Definitions to remember I An informal fallacy is a fallacy that does not use an invalid argument form an mistake lurking in the content of an argument rather than in its form Strength is the quality of an argument in which the conclusion is probably true if the premises are true Inductive logic is the study of methods for testing whether an argument is strong A merely verbal dispute is a disagreement over descriptions of things with no underlying disagreement over the things themselves A persuasive de nition is a definition slanted in favor of a certain point of view method method does works on appears in Using definitions identifies merely verbal merely verbal disputes persuasive 32 33 disputes persuasive definitions definitions and arguments using and equivocations equivocations Informal fallacies tests for weakness many inductive arguments also 41 42 43 some deductive arguments Analyzing arguments tests for weakness and strength arguments from authority 102 from authority Analyzing arguments tests for weakness and strength arguments from analogy 104 from analogy

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