Udo Wermuth submitted the
gfnotation
package.
Version number: 2.9 2015-03-29 License type: gpl3
Summary description: Typeset Gottlob Frege's notation in plain TeX
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The package implements macros for plain TeX to typeset the notation invented by Gottlob Frege in 1879 for his books ``Begriffsschrift'' and ''Grundgesetze der Arithmetik'' (two volumes). The output styles of both books are supported.
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This package is located at http://mirror.ctan.org/macros/plain/contrib/gfnotation
More information is at http://www.ctan.org/pkg/gfnotation
We are supported by the TeX Users Group http://www.tug.org . Please join a users group; see http://www.tug.org/usergroups.html .
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Thanks for the upload.
For the CTAN Team Ina Dau