March 6, 2017 Working paper Open Access

Colignatus, Thomas

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{
  "DOI": "10.5281/zenodo.346001", 
  "abstract": "<p>The mathematical \"theory of expressions\" better be developed in a general fashion, so that it can be referred to in various applications. The paper discusses an example when there is a confusion between syntax (unevaluated) and semantics (evaluated), when substitution causes a contradiction. However, education should not wait till such a mathematical theory of expressions is fully developed. Computer algebra is sufficiently developed to support and clarify these issues. Fractions <em>y</em> / <em>x</em> can actually be abolised and replaced with <em>y</em> <em>x</em><sup><em>H</em></sup> with <em>H</em> = -1 as a constant like exponential number <em>e</em> or imaginary number <em>i</em>.</p>", 
  "author": [
    {
      "family": "Colignatus, Thomas"
    }
  ], 
  "id": "346001", 
  "issued": {
    "date-parts": [
      [
        2017, 
        3, 
        6
      ]
    ]
  }, 
  "publisher": "Zenodo", 
  "title": "Some steps towards a theory of expressions", 
  "type": "article"
}