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Teaching Innovations in Real Analysis:

Teaching Innovations in Real Analysis:. Using History to Understand How to Teach Real Analysis. David Bressoud Macalester College, St. Paul, MN New Orleans, January 7, 2007. A Radical Approach to Lebesgue’s Theory of Integration. To appear December, 2007.

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Teaching Innovations in Real Analysis:

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  1. Teaching Innovations in Real Analysis: Using History to Understand How to Teach Real Analysis David Bressoud Macalester College, St. Paul, MN New Orleans, January 7, 2007

  2. A Radical Approach to Lebesgue’s Theory of Integration To appear December, 2007 Series, continuity, differentiation 1800–1850 Integration, structure of the real numbers 1850–1910

  3. Cauchy, Cours d’analyse, 1821 “…explanations drawn from algebraic technique … cannot be considered, in my opinion, except as heuristics that will sometimes suggest the truth, but which accord little with the accuracy that is so praised in the mathematical sciences.”

  4. Niels Henrik Abel (1826): “Cauchy is crazy, and there is no way of getting along with him, even though right now he is the only one who knows how mathematics should be done. What he is doing is excellent, but very confusing.”

  5. Cauchy, Cours d’analyse, 1821, p. 120 Theorem 1. When the terms of a series are functions of a single variable x and are continuous with respect to this variable in the neighborhood of a particular value where the series converges, the sum S(x) of the series is also, in the neighborhood of this particular value, a continuous function of x.

  6. Abel, 1826: “It appears to me that this theorem suffers exceptions.”

  7. n depends on x x depends on n

  8. “If even Cauchy can make a mistake like this, how am I supposed to know what is correct?”

  9. This PowerPoint presentation is available at www.macalester.edu/~bressoud/talks A draft of A Radical Approach to Lebesgue’s Theory of Integration is available at www.macalester.edu/~bressoud/books

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