Working paper Open Access
Colignatus, Thomas
{ "publisher": "Zenodo", "DOI": "10.5281/zenodo.346001", "title": "Some steps towards a theory of expressions", "issued": { "date-parts": [ [ 2017, 3, 6 ] ] }, "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" } ], "type": "article", "id": "346001" }
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