Date of Original Version



Conference Proceeding

Abstract or Description

I was recently invited to give a presentation about the logical framework LLF}. After a 40 minutes talk in which I revealed the intricacies of the underlying type theory and illustrated by means of examples the meta-representation wonders of this new language, somebody in the audience said: "This looks very complicated. Why not using, say, classical logic instead?". In this chapter, I build upon my then improvised answer. I will recall what logical frameworks are and try to motivate the simple but unfamiliar constructs they often rely upon.


in Formalizing the Dynamics of Information (M. Faller, S. Kaufmann and M. Pauly, editors), pp. 87-104, University of Chicago Press, 2000