Traf: A Graphical Proof Tree Viewer Cooperating with Coq Through Proof General

The Coq Proof Script Visualiser (coq-psv)

“…There are already some approaches to representing proof scripts in a more readable and independent way (see [5,7,8,9,11,10], for example). But except for [5] and [11], all of them represent the proofs only as trees or diagrams.…”

“…Although the approach described in [5] supports both a tree and a Fitch style representation, the latter only shows the current step and it does not seem to be possible to export the complete proof as L A T E X file, for example. Also, only ProofWeb [5], Proviola [11], ProofTree [10] and Traf [7] are targeting Coq and the two latter only work in a live session with Coq and, for example, ProofGeneral [1]. Furthermore, Traf uses ProofTree and both seem to have been discontinued for more than two years.…”