English

A theorem with constructive and non-constructive proofs

History and Overview 2012-12-19 v2

Abstract

We present a very simple example of a theorem with constructive and non-constructive proofs: the equation c^2 x^2 - (c^2 + c)x + c = 0 has a solution.

Keywords

Cite

@article{arxiv.1211.0442,
  title  = {A theorem with constructive and non-constructive proofs},
  author = {Jaime Gaspar},
  journal= {arXiv preprint arXiv:1211.0442},
  year   = {2012}
}
R2 v1 2026-06-21T22:32:06.898Z