DIRECT AND INDIRECT METHODS OF PROOF. THE LEHMUS-STEINER THEOREM

Authors

  • Vesselka Mihova
  • Julia Ninova

Keywords:

Direct and indirect methods of proof, direct proof of Lehmus-Steiner’s theorem, logical models, Stewart’s theorem

Abstract

We describe and discuss the different methods of proof of a given statement and illustrate by logical models the essence of specific types of proofs, especially of direct and indirect methods of proof.Two direct proofs of Lehmus-Steiner’s theorem are proposed.

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Published

2016-12-12

Issue

Vol. 103 (2016): Ann. Sofia Univ. Fac. Math and Inf.

Section

Articles

How to Cite

DIRECT AND INDIRECT METHODS OF PROOF. THE LEHMUS-STEINER THEOREM. (2016). Annual of Sofia University St. Kliment Ohridski. Faculty of Mathematics and Informatics, 103, 105-121. https://annual.uni-sofia.bg/index.php/fmi/article/view/59