# Frases de Edmund Landau

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## Edmund Landau

Data de nascimento: 14. Fevereiro 1877
Data de falecimento: 19. Fevereiro 1938

Edmund Georg Hermann Landau foi um matemático alemão que trabalhou nos campos da teoria dos números e análise complexa.

Publicou mais de 250 trabalhos em teoria dos números.

### „Translation: Number theory is useful, since one can graduate with it.“

Die Zahlentheorie ist nützlich, weil man mit ihr promovieren kann.
Foreword to Vorlesungen über Zahlentheorie (Lectures on Number Theory) (1927).

### „We mathema­ticians are all a little bit crazy.“

Wir Mathematiker sind alle ein bißchen meschugge.

Grundlagen der Analysis [Foundations of Analysis] (1930) Preface for the Student, as quoted by Eli Maor, Trigonometric Delights (2013)

### „My book is written, as befits such easy material, in merciless telegram style ("Axiom," "Definition," "Theorem," "Proof," occasionally "Preliminary Remark")… I hope I have written this book in such a way that a normal student can read it in two days. And then (since he already knows the formal rules from school) he may forget its contents.“

Grundlagen der Analysis [Foundations of Analysis] (1930) Preface for the Teacher, as quoted by Eli Maor, Trigonometric Delights (2013)

### „Please forget everything that you have learned in school; for you haven't learned it.“

Foundations of Analysis (1960) as quoted by Eli Maor, The Pythagorean Theorem: A 4,000-year History (2007)

### „I will ask of you only the ability to read English and to think logically—no high school mathematics, and certainly no higher mathematics.“

Grundlagen der Analysis [Foundations of Analysis] (1930) Preface for the Student, as quoted by Eli Maor, Trigonometric Delights (2013)

### „The multiplication table will not occur in this book, not even the theorem,2 \cdot 2 = 4,but I would recommend, as an exercise, that you define2 = 1 + 1,4 = (((1 + 1) + 1) + 1)and then prove the theorem.“

Grundlagen der Analysis [Foundations of Analysis] (1930) Preface for the Student, as quoted by Eli Maor, Trigonometric Delights (2013)