Kulczycki, Emanuel2011-11-202011-11-202009Kul­czycki, E. (2009). The Deve­lop­ment of Leibniz’s Con­si­de­ra­tions in John Yench’s Pro­ject. Stu­dies in Logic, Gram­mar and Rhe­to­ric, 28(15), 211–220.978-83-7431-195-3SSN 0860-150Xhttp://hdl.handle.net/10593/1450The purpose of the article is to present John Yench’s a priori language as a continuation of Leibniz’s idea. Before I proceed to show the project of the Inter-Disciplinary International Reference Language, I would like to discuss the development of Gottfried Wilhelm Leibniz’s view on artificial languages. I will try to show the evolution of Leibniz’s universal language: from its ideal conception to a tool which formalizes the whole of human knowledge. Also, I will show Leibniz’s influence on further ideas of artificial language. I will compare his projects with Yench’s language – Idirl. An analysis of Idirl’s main assumptions will be useful to show the degree of continuation of Leibniz’s ideas in the a priori language of John Yench.enLeibnizartificial languagephilosophy of languagepragmaticsphilosophy of language and communicationArtykuł