In the four decades since Imre Lakatos declared mathematics a "quasi-empirical science," increasing attention has been paid to the process of proof and argumentation in the field -- a development paralleled by the rise of computer technology and the mounting interest in the logical underpinnings of mathematics. Explanantion and Proof in Mathematics assembles perspectives from mathematics education and from the philosophy and history of mathematics to strengthen mutual awareness and share recent findings and advances in their interrelated fields. With examples ranging from the geometrists of the 17th century and ancient Chinese algorithms to cognitive psychology and current educational practice, contributors explore the role of refutation in generating proofs, the varied links between experiment and deduction, the use of diagrammatic thinking in addition to pure logic, and the uses of proof in mathematics education (including a critique of "authoritative" versus "authoritarian" teaching styles).

Directs attention of educational researchers to newest developments in the philosophy and practice of mathematics and their relevance

Reflections on the Nature and Teaching of Proof.- The Conjoint Origin of Proof and Theoretical Physics.- Lakatos, Lakoff and Núñez: Towards a Satisfactory Definition of Continuity.- Preaxiomatic Mathematical Reasoning: An Algebraic Approach.- Completions, Constructions, and Corollaries.- Authoritarian Versus Authoritative Teaching: Polya and Lakatos.- Proofs as Bearers of Mathematical Knowledge.- Mathematicians' Individual Criteria for Accepting Theorems and Proofs: An Empirical Approach.- Proof and Cognitive Development.- Bridging Knowing and Proving in Mathematics: A Didactical Perspective.- The Long-Term Cognitive Development of Reasoning and Proof.- Historical Artefacts, Semiotic Mediation and Teaching Proof.- Proofs, Semiotics and Artefacts of Information Technologies.- Experiments, Diagrams and Proofs.- Proof as Experiment in Wittgenstein.- Experimentation and Proof in Mathematics.- Proof, Mathematical Problem-Solving, and Explanation in Mathematics Teaching.- Evolving Geometric Proofs in the Seventeenth Century: From Icons to Symbols.- Proof in the Wording: Two Modalities from Ancient Chinese Algorithms.