Working paper Open Access

# Some steps towards a theory of expressions

Colignatus, Thomas

### Citation Style Language JSON Export

{
"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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