MATH135 Lecture : Lecture 1 Notes Winter 2009 Lecture 1 notes
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16 Oct 2011
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Two of the main purposes of math 135 are to teach you about proof (what it means, how to prove things, etc. ) and to teach you about precision in mathematics. A rigorous mathematical argument which unequivocally demonstrates the truth of a given statement. In other words, in mathematics a proof is a sequence of steps, starting with one or more hypotheses, which follow logically from each other, using the axioms of mathematics, leading to the desired con- clusion. We want to know if a statement is always true. Mathematics is cumulative we use old results to prove new results. If it turned out that one result that we thought was true actually failed sometimes, the results following from it could also be false. What kinds of professions rely on mathematics: engineering, actuarial science, accounting, weather forecasting, banking. Actually, just about every profession relies on math somehow! This is why proof is very important from a practical point of view.
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