PHIL 250A Lecture 1

PHIL 250A Lecture 1 - I. WHAT IS LOGIC? ROUGHLY: THE STUDY...

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I. WHAT IS LOGIC? ROUGHLY: THE STUDY OF RULES OF CORRECT REASONING RULES THAT TELL YOU WHAT FOLLOWS FROM WHAT PRACTICAL IMPORTANCE: ARGUMENT EVALUATION AND CONSTRUCTION Two meanings of “argument”: 1) dispute, often a heated or angry dispute; 2) a set of reasons or considerations intended to support some statement. We’re interested in the arguments of the 2nd kind. Some places you encounter these kinds of arguments: 1) In newspapers, especially on the editorial pages. Similarly, in discussions (written or oral) about controversial issues… 2) Whenever you think about something or consider what someone else has said about something, you are considering an argument. 3) In courses, when teachers (or students) defend some claim. 4) In papers you write you will give arguments for whatever thesis, or point, you defend. You must distinguish disputes from rational arguments (or proofs). APPLICATION – MATH COMPUTER SCIENCE NATURAL AND SOCIAL SCIENCES LINGUISTICS WRITING & COMPOSITION LAW
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COURSE AIM: LEARN 1) TO REPRESENT ENGLISH ARGUMENTS IN SYMBOLIC NOTATION 2) TO MECHANICALLY TEST THE ‘GOODNESS’ OF ARGUMENTS 3) TO CONSTRUCT ARGUMENTS IN FORMAL NOTATION 4) TO UNDERSTAND WHY AND HOW GOOD REASONING WORKS TRUTH, SENTENCES, AND ARGUMENTS A. DECLARATIVE SENTENCES PURPORT TO DESCRIBE STATES OF AFFAIRS ARE EITHER TRUE OR FALSE (THEY HAVE A ‘TRUTH- VALUE’) EXAMPLES:
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This note was uploaded on 12/07/2010 for the course PHIL 250A at USC.

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PHIL 250A Lecture 1 - I. WHAT IS LOGIC? ROUGHLY: THE STUDY...

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