Ch. 1 Deductive Logic

Ch. 1 Deductive Logic - 1 PHIL 111: Inductive Logic Class...

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1 PHIL 111: Inductive Logic Class Problems Chapter 1: Deduction 1. Informal Logic: validity and soundness a. A valid argument is. .. b. A sound argument is… [Ex. 1] [Ex. 2] (1) All men are mortal. (1) If James wants a job, then he will get a haircut tomorrow. (2) Socrates is a man. (2) James will get a haircut tomorrow. (3) Therefore, Socrates is mortal. (3) Therefore, James wants a job. c. Can a valid argument have true premise(s) and a true conclusion? ___________________ (1) The Jonas Brothers are pop singers and James Brown is a soul singer. (2) Therefore, the Jonas Brothers are pop singers. d. Can a valid argument have false premise(s) and a false conclusion? ___________________ (1) Paris Hilton has never been imprisoned and Brittany Spears never shaved her head. (2) Therefore, Paris Hilton has never been imprisoned. e. Can a valid argument have false premise(s) and a true conclusion? ___________________ (1) George Bush is Canadian and James Brown is a soul singer. (2) Therefore, James Brown is a soul singer.
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This note was uploaded on 06/07/2011 for the course PHIL 111 taught by Professor Everett during the Fall '08 term at South Carolina.

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Ch. 1 Deductive Logic - 1 PHIL 111: Inductive Logic Class...

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