# CTAN Update: ebproof

Date: May 21, 2017 7:35:40 AM CEST
Emmanuel Beffara submitted an update to the ebproof package. Version: 2.0 2017-05-17 License: lppl1.3 Summary description: Formal proofs in the style of sequent calculus Announcement text:
This is a complete rewrite of the package allowing for future developments. It now uses the expl3 programming environment instead of pgfkeys and additional packages. The feature set from the user's point of view is mostly unchanged except that commands have been renamed to lowercase (but backwards compatibility is preserved, with warnings) and that a new command \rewrite has been added, to allow arbitrary decoration of proof subtrees.
The package’s Catalogue entry can be viewed at https://ctan.org/pkg/ebproof The package’s files themselves can be inspected at http://mirror.ctan.org/macros/latex/contrib/ebproof/
Thanks for the upload. For the CTAN Team Petra Rübe-Pugliese
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## ebproof – Formal proofs in the style of sequent calculus

This package provides commands to typeset proof trees in the style of sequent calculus and related systems.

The commands allow for writing inferences with any number of premises and alignment of successive formulas on an arbitrary point. Various options allow complete control over spacing, styles of inference rules, placement of labels, etc.

The package requires expl3 and xparse.

 Package ebproof Version 2.1.1 2021-01-28 Copyright 2015–2021 Emmanuel Beffara Maintainer Emmanuel Beffara

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