• Corpus ID: 125607455

Reasoning by equivalence as elementary formal proof: the potential contribution of an automatic proof checker

@inproceedings{Sangwin2018ReasoningBE,
  title={Reasoning by equivalence as elementary formal proof: the potential contribution of an automatic proof checker},
  author={Chris Sangwin},
  year={2018}
}
Reasoning by equivalence, a form of line-by-line algebraic reasoning, is the most important single form of reasoning in school mathematics. In this chapter I define reasoning by equivalence and examine the role of reasoning by equivalence in mathematical proof. I base the discussion on an examination of the extent to which students are currently asked to “prove”, “show” or “justify” in high-stakes national examinations. I then report research into how students go about solving such problems on… 

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