New on CTAN: egpeirce

CTAN Announcements ctan-ann at
Wed Mar 22 12:02:42 CET 2023

Jukka Nikulainen submitted the



Version number: 1.0.0
License type: lppl1.3

Summary description: Draw existential graph invented by Charles S. Peirce

Announcement text:

`egpeirce` is meant for drawing existential graphs (α, β, and γ systems 
accounted for) that were invented and developed by the philosopher and polymath 
Charles S. Peirce (1839--1914). The package also contains novel and unique 
symbols for multiple types of linear logical operators Peirce invented and used 
in his larger logical system.

The package enables your document to contain graphs without having to resort to 
external image files. It also automates many of the more tedious aspects of 
vectorizing existential graphs by hand. However, it does not check or ensure 
that proper syntactic rules are obeyed. The graphs are described in relatively 
simple and straightforward code and when you compile your document, LaTeX (or 
PostScript through the PsTricks LaTeX package) does the drawing for you.


This package is located at

More information is at


   Thanks for the upload.

     For the CTAN Team
    Erik Braun


CTAN is run entirely by volunteers and supported by TeX user groups.
Please join a user group or donate to one, see

More information about the Ctan-ann mailing list