This is a package with a bunch of useful commands and symbols for recursion theorists a.k.a. computability theorists.
Home Page: http://invariant.org/projects.html
I recently installed MacTeX 2018 and am now getting errors when trying to compile documents that use the rec-thy package using pdflatex.
Here's a minimal working example:
\documentclass{article}
\usepackage{rec-thy}
\begin{document}
\end{document}
And here's the console output I get when running pdflatex on that example, along with the full log file:
$ pdflatex min-working-example.tex
This is pdfTeX, Version 3.14159265-2.6-1.40.19 (TeX Live 2018) (preloaded format=pdflatex)
restricted \write18 enabled.
entering extended mode
(./min-working-example.tex
LaTeX2e <2018-04-01> patch level 2
Babel <3.18> and hyphenation patterns for 84 language(s) loaded.
(/usr/local/texlive/2018/texmf-dist/tex/latex/base/article.cls
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
(/usr/local/texlive/2018/texmf-dist/tex/latex/base/size10.clo))
(/usr/local/texlive/2018/texmf-dist/tex/latex/rec-thy/rec-thy.sty
(/usr/local/texlive/2018/texmf-dist/tex/generic/oberdiek/ltxcmds.sty)
(/usr/local/texlive/2018/texmf-dist/tex/generic/ifxetex/ifxetex.sty)
(/usr/local/texlive/2018/texmf-dist/tex/generic/oberdiek/ifpdf.sty)
(/usr/local/texlive/2018/texmf-dist/tex/latex/bigfoot/suffix.sty)
(/usr/local/texlive/2018/texmf-dist/tex/latex/ifmtarg/ifmtarg.sty)
(/usr/local/texlive/2018/texmf-dist/tex/latex/xifthen/xifthen.sty
(/usr/local/texlive/2018/texmf-dist/tex/latex/tools/calc.sty)
(/usr/local/texlive/2018/texmf-dist/tex/latex/base/ifthen.sty))
(/usr/local/texlive/2018/texmf-dist/tex/latex/xkeyval/xkeyval.sty
(/usr/local/texlive/2018/texmf-dist/tex/generic/xkeyval/xkeyval.tex
(/usr/local/texlive/2018/texmf-dist/tex/generic/xkeyval/xkvutils.tex
(/usr/local/texlive/2018/texmf-dist/tex/generic/xkeyval/keyval.tex))))
(/usr/local/texlive/2018/texmf-dist/tex/latex/etoolbox/etoolbox.sty)
(/usr/local/texlive/2018/texmf-dist/tex/latex/l3packages/xparse/xparse.sty
(/usr/local/texlive/2018/texmf-dist/tex/latex/l3kernel/expl3.sty
(/usr/local/texlive/2018/texmf-dist/tex/latex/l3kernel/expl3-code.tex)
(/usr/local/texlive/2018/texmf-dist/tex/latex/l3kernel/l3pdfmode.def))))
(/usr/local/texlive/2018/texmf-dist/tex/latex/enumitem/enumitem.sty)
! Undefined control sequence.
\rec-thy.sty-h@@k ... *{\req@nohref } \newtagform
{colon}{}{:} \newenvironme...
l.3 \begin
{document}
? ^[
Thanks in advance for looking at this. rec-thy is a great package that has saved me a lot of time, and I very much appreciate your work in having written it.
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