Involve necessary reasoning - Math style Example: 1. Categorical syllogism: All ancient forests are sources of wonder. Some ancient forests are targets of the timber industry. Therefore‚ some sources of wonder are targets of the timber industry. 2. Hypothetical syllogism: If Fox News is a propaganda machine‚ then it misleads its viewers. Fox News is a propaganda machine. Therefore‚ Fox News misleads its viewers. 3. Disjunctive syllogism: Either global warming will be arrested‚ or hurricanes
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. One good method to test quickly syllogisms is the Venn Diagram technique. This class assumes you are already familiar with diagramming categorical propositions. You might wish to review these now: Venn Diagrams. | | A. A syllogism is a two premiss argument having three terms‚ each of which is used twice in the argument. | | B. Each term ( major‚ minor‚ and middle terms) can be represented by a circle. | | C. Since a syllogism is valid if and only if the premisses entail the conclusion
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Logic Logic- Greek word ‘logos’ which means thought‚ word‚ speech‚ science. Founded by Aristotle around 384-322 B.C. through his famous philosophical masterpiece “organon” Organon- the universal rational instrument for the acquisition of philosophical knowledge. Logic is about the attainment of truth. It is the art and science of correct thinking. Thus‚ thinking and reasoning. Thinking- it means mental operations or the process of drawing out conclusions from previously known data. Correct Thinking-
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necessity from its premises‚ then the argument should be regarded as __________. a. inductive b. deductive c. both a and b d. neither a nor b 5. Which of the following is not a common pattern of deductive reasoning? a. statistical argument b. categorical syllogism c. argument from elimination d. argument by definition 6. Denying the antecedent arguments have the following pattern: a. If A then B; if B then C; so‚ if A then C. b. If A then B; not A; so‚ not B. c. If A then B; not B; so‚ not A. d. If
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as the procedure for learning about any discipline.(Hurley 5) For Aristotle‚ then‚ logic is the instrument (the "organon") by means of which we come to know anything. He proposed as formal rules for correct reasoning the basic principles of the categorical logic that was universally accepted by Western philosophers until the nineteenth century. This system of thought regards assertions of the subject-predicate form as the primary expressions of truth‚ in which features or properties are shown to inhere
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premises. The syllogism is used in deductive thinking. Categorical‚ hypothetical‚ and disjunctive syllogisms are three different types used for deductive thinking. A categorical syllogism uses a form of argument that either affirms or denies whether a topic is an element of a group or has a definite property. Hypothetical syllogisms follow an if-then statement. It is making a hypothetical assumption that if something happens‚ then something else will happen. Disjunctive syllogisms use either/or statements
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Critical Thinking – PHI 210 Student Course Guide Prerequisite: None Quarter Meeting Days/Time Instructor Instructor Phone Instructor E-mail Instructor Office Hours/Location Academic Office Phone Number Strayer Technical Support 1-877-642-2999 INSTRUCTIONAL MATERIAL — Required Kirby‚ G. R.‚ & Goodpaster‚ J.R. (2007). Thinking: An interdisciplinary approach to critical and creative thought (4th ed.). Upper Saddle River‚ NJ: Pearson/Prentice Hall. INSTRUCTIONAL MATERIAL — Supporting The
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BUSI 1010 Critical Thinking and Ethics Deductive 2 BUSI 1010 Critical Thinking and Ethics Deductive 2 Name: Ali Ejaz ID #100 505 758 Seminar #Wednesday @ 2 1) Draw a Venn Diagram for the following Categorical Syllogism and determine if the argument is valid or invalid. (2 marks for proper Venn diagram‚ 2 marks for proper diagnosis‚ 4 marks total) Some accountants are not good bookkeepers. All accountants are highly-paid professionals. Therefore‚ some highly-paid professionals
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Sequenced. Precise. Elegant. Clear. Hurley’s A Concise Introduction to Logic‚ 11th Edition How to Make an Origami Crane Make your own origami crane using these instructions and the perforated sheet of paper included in your book. 1. Start with a square piece of paper‚ colored side up. Fold in half and open. Then fold in half the other way. 2. Turn the paper over to the white side. Fold the paper in half‚ crease well and open‚ and then fold again in the other direction. 3. Using the creases
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What is a categorical syllogism? How well can people judge the validity of categorical syllogisms‚ and what is the difference between validity and truth in syllogistic reasoning? A syllogism in which the premises and conclusion describe the relationship between two categories by using statements that beginning with all‚ no or some. Quality of a syllogism whose conclusion follows logically from the premises. if the two premises of a valid syllogism are true‚ the syllogism’s conclusion must be true
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