Warning: this is an htmlized version!
The original is here, and
the conversion rules are here.
% (find-LATEX "2021verbatim.tex")
% (defun c () (interactive) (find-LATEXsh "lualatex -record 2021verbatim.tex" :end))
% (defun C () (interactive) (find-LATEXSH "lualatex 2021verbatim.tex" "Success!!!"))
% (defun D () (interactive) (find-pdf-page      "~/LATEX/2021verbatim.pdf"))
% (defun d () (interactive) (find-pdftools-page "~/LATEX/2021verbatim.pdf"))
% (defun e () (interactive) (find-LATEX "2021verbatim.tex"))
% (defun l () (interactive) (find-LATEX "2021verbatim.lua"))
% (defun o () (interactive) (find-dednat6 "myverbatim.lua"))
% (defun u () (interactive) (find-latex-upload-links "2021verbatim"))
% (defun v () (interactive) (find-2a '(e) '(d)))
% (defun cv () (interactive) (C) (ee-kill-this-buffer) (v) (g))
% (defun d0 () (interactive) (find-ebuffer "2021verbatim.pdf"))
%          (code-eec-LATEX "2021verbatim")
% (find-pdf-page   "~/LATEX/2021verbatim.pdf")
% (find-sh0 "cp -v  ~/LATEX/2021verbatim.pdf /tmp/")
% (find-sh0 "cp -v  ~/LATEX/2021verbatim.pdf /tmp/pen/")
%   file:///home/edrx/LATEX/2021verbatim.pdf
%               file:///tmp/2021verbatim.pdf
%           file:///tmp/pen/2021verbatim.pdf
% http://angg.twu.net/LATEX/2021verbatim.pdf
% (find-LATEX "2019.mk")
% (find-lualatex-links "2021verbatim")

\documentclass[oneside,12pt]{article}
\usepackage[colorlinks,citecolor=DarkRed,urlcolor=DarkRed]{hyperref} % (find-es "tex" "hyperref")
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{pict2e}
\usepackage[x11names,svgnames]{xcolor} % (find-es "tex" "xcolor")
\usepackage{colorweb}                 % (find-es "tex" "colorweb")
%\usepackage{tikz}
%
% (find-dn6 "preamble6.lua" "preamble0")
%\usepackage{proof}   % For derivation trees ("%:" lines)
%\input diagxy        % For 2D diagrams ("%D" lines)
%\xyoption{curve}     % For the ".curve=" feature in 2D diagrams
%
\usepackage{edrx21}               % (find-LATEX "edrx21.sty")
\input edrxaccents.tex            % (find-LATEX "edrxaccents.tex")
\input edrx21chars.tex            % (find-LATEX "edrx21chars.tex")
\input edrxheadfoot.tex           % (find-LATEX "edrxheadfoot.tex")
\input edrxgac2.tex               % (find-LATEX "edrxgac2.tex")
%\input 2017planar-has-defs.tex    % (find-LATEX "2017planar-has-defs.tex")
%
% (find-es "tex" "geometry")
\begin{document}

\catcode`\^^J=10
\directlua{dofile "dednat6load.lua"}  % (find-LATEX "dednat6load.lua")
\directlua{dofile "2021verbatim.lua"} % (find-LATEX "2021verbatim.lua")

%V %F 1 / P
%V %F 2 | P→Q
%V %F   | ----
%V %F 3 | Q    \Lean{Hello_you}
%V %F 3 \ Q    \Tac{Hello_you}{Hello_you}
%V %L
%V %L defftch "??"
%V $$\pu
%V   \ftch{??}
%V $$
%L
%L defvbt "??"
$\pu
 a \vbt{??} b
$

\GenericWarning{Success:}{Success!!!}  % Used by `M-x cv'

\end{document}

% Local Variables:
% coding: utf-8-unix
% ee-tla: "NONE"
% End: