\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{naproche}[2021/02/04 Typesetting for Naproche formalizations]

\RequirePackage{amsmath}
\RequirePackage{amssymb}
\RequirePackage{amsthm}
\RequirePackage{etoolbox}
\RequirePackage{thmtools}
\RequirePackage{nameref,cleveref}

% command for importing theories, no visible rendering
\newcommand{\import}[1]{}
\newcommand{\explanation}[1]{\quad\text{[#1]}}




\newtheoremstyle{formalized}% name of the style to be used
    {4pt}% measure of space to leave above the theorem. E.g.: 3pt
    {4pt}% measure of space to leave below the theorem. E.g.: 3pt
    {\normalfont} % name of font to use in the body of the theorem
    {0pt}% measure of space to indent
    {\bfseries}% name of head font
    {}% punctuation between head and body
    { }% space after theorem head; " " = normal inter-word space
    {\thmname{#1}\thmnumber{ #2}. \thmnote{ (#3) }}

\theoremstyle{formalized}
\newcounter{theoremcount}

\newtheorem{abbreviation}[theoremcount]{Abbreviation}
\newtheorem{axiom}[theoremcount]{Axiom}
\newtheorem{corollary}[theoremcount]{Corollary}
\newtheorem{definition}[theoremcount]{Definition}
\newtheorem{struct}[theoremcount]{Struct}
\newtheorem{fact}[theoremcount]{Fact}
\newtheorem{lemma}[theoremcount]{Lemma}
\newtheorem{proposition}[theoremcount]{Proposition}
\newtheorem{remark}[theoremcount]{Remark}
\newtheorem{signature}[theoremcount]{Signature}
\newtheorem{theorem}[theoremcount]{Theorem}

% Theorem environments without numbering.
\newtheorem*{quotedaxiom}{Axiom}
\newtheorem*{quotedcorollary}{Corollary}
\newtheorem*{quoteddefinition}{Definition}
\newtheorem*{quotedstruct}{Struct}
\newtheorem*{quotedfact}{Fact}
\newtheorem*{quotedlemma}{Lemma}
\newtheorem*{quotedproposition}{Proposition}
\newtheorem*{quotedremark}{Remark}
\newtheorem*{quotedsignature}{Signature}
\newtheorem*{quotedtheorem}{Theorem}

\crefname{axiom}{axiom}{axioms}
\crefname{claim}{claim}{claims}
\crefname{theorem}{theorem}{theorems}
\crefname{definition}{definition}{definitions}
\crefname{abbreviation}{abbreviation}{abbreviations}
\crefname{proposition}{proposition}{propositions}
\crefname{lemma}{lemma}{lemmas}

\newcommand{\fun}[1]{\operatorname{\mathsf{#1}}}


\newenvironment{byCase}{}{}
\newcommand{\caseOf}[1]{\par{}Case:\ #1}

\newenvironment{subproof}{\textit{Subproof.\ }}{$\square$}




% Symbols
% =======

\newcommand{\addNat}{+_{\naturals}}
\newcommand{\apply}[2]{#1(#2)}
\newcommand{\bipartitions}[1]{\fun{Bipartitions}#1}
\newcommand{\bijections}[2]{\fun{Bi}(#1,#2)}
\newcommand{\cons}[2]{\fun{cons}(#1,#2)}
\newcommand{\converse}[1]{{#1^{\mathsf{T}}}}
\newcommand{\dom}[1]{\fun{dom}#1}
\newcommand{\downward}[2]{#2^{\downarrow #1}}
\newcommand{\equivalenceClass}[2]{[#2]_{#1}}
\newcommand{\equivfrompartition}[1]{E_{#1}}
\newcommand{\fld}[1]{\fun{field}#1}
\newcommand{\fst}[1]{\fun{fst}#1}
\newcommand{\funs}[2]{\fun{Fun}(#1,#2)}
\newcommand{\genOpens}[2]{\mathcal{O}_{#2}(#1)}
\newcommand{\idempotents}[1]{\fun{Idempotent}(#1)}
\newcommand{\identity}[1]{\fun{id}_{#1}}
\newcommand{\img}[2]{#1^{\to}(#2)}
\newcommand{\inj}[2]{\fun{Inj}(#1,#2)}
\newcommand{\inter}{\cap}
\newcommand{\inters}[1]{\bigcap #1}
\newcommand{\leNat}{\leq_{\naturals}}
\newcommand{\meets}{\mathrel{\supset\!\!\!\subset}}
\newcommand{\memrel}[1]{{\in_{#1}}}
\newcommand{\monusNat}{-_{\naturals}}
\newcommand{\naturals}{\mathcal{N}}
\newcommand{\notmeets}{\mathrel{\not\meets}}
\newcommand{\pow}[1]{\fun{Pow}(#1)}
\newcommand{\precedes}{<}
\newcommand{\precedeseq}{\leq}
\newcommand{\preimg}[2]{#1^{\leftarrow}(#2)}
\newcommand{\principalfilter}[2]{{\uparrow_{#1}}#2}
\newcommand{\quotient}[2]{#1/#2}
\newcommand{\ran}[1]{\fun{ran}#1}
\newcommand{\reals}{\mathcal{R}}
\newcommand{\refines}{\leq}
\newcommand{\reflexiveClosure}[2]{\fun{ReflCl}_{#1}(#2)}
\newcommand{\reflexiveReduction}[2]{\fun{ReflReduc}_{#1}(#2)}
\newcommand{\relcomp}{;}
\newcommand{\rels}[2]{\fun{Rel}(#1,#2)}
\newcommand{\remove}[2]{#2\setminus\{#1\}}
\newcommand{\snd}[1]{\fun{snd}#1}
\newcommand{\subseteqrel}[1]{{\subseteq_{#1}}}
\newcommand{\suc}[1]{#1^{+}}
\newcommand{\sucNat}[1]{\suc{#1}}
\newcommand{\surj}[2]{\fun{Surj}(#1,#2)}
\newcommand{\symdiff}{\mathbin{\triangle}}
\newcommand{\symmetricClosure}[1]{\fun{SymCl}(#1)}
\newcommand{\toorder}[2]{\fun{OrderFromStrictOrder}_{#1}(#2)}
\newcommand{\tostrictorder}[1]{\fun{StrictOrderFromOrder}(#1)}
\newcommand{\union}{\cup}
\newcommand{\unions}[1]{\bigcup #1}
\newcommand{\Univ}[1]{\fun{Univ}(#1)}
\newcommand{\upward}[2]{#2^{\uparrow #1}}
\newcommand{\LeftOrb}[2]{#2\cdot #1}


\newcommand\restrl[2]{{% we make the whole thing an ordinary symbol
  \left.\kern-\nulldelimiterspace % automatically resize the bar with \right
  #1 % the function
  \vphantom{\big|} % pretend it's a little taller at normal size
  \right|_{#2} % this is the delimiter
  }}
\let\mathonlyin\in
\renewcommand{\in}{\texorpdfstring{\ensuremath{\mathonlyin}}{∈}}

\let\mathonlysubseteq\subseteq
%\renewcommand{\subseteq}{\ensuremath{\mathonlysubseteq}}
\renewcommand{\subseteq}{\texorpdfstring{\ensuremath{\mathonlysubseteq}}{⊆}}


% Structure operations

\newcommand{\carrier}[1][]{#1}
\newcommand{\mul}[1][]{\textsf{mul}_{#1}}
\newcommand{\neutral}[1][]{\textsf{e}_{#1}}
\newcommand{\lt}[1][]{\leq_{#1}}
\newcommand{\opens}[1][]{\mathcal{O}_{#1}}
\newcommand{\meet}[1][]{\sqcap_{#1}}
\newcommand{\join}[1][]{\sqcup_{#1}}

\newcommand{\closeds}[1]{\mathcal{C}_{#1}}
\newcommand{\interiors}[2]{\fun{Int}_{#2}{#1}}
\newcommand{\interior}[2]{\fun{int}_{#2}{#1}}
\newcommand{\closures}[2]{\fun{Cl}_{#2}{#1}}
\newcommand{\closure}[2]{\fun{cl}_{#2}{#1}}
\newcommand{\frontier}[2]{\fun{fr}_{#2}{#1}}
\newcommand{\neighbourhoods}[2]{\textsf{N}_{#2}{#1}}
\newcommand{\disconnections}[1]{\fun{Disconnections}{#1}}

\newcommand{\teezero}{\ensuremath{T_0}} % Kolmogorov
\newcommand{\teeone}{\ensuremath{T_1}} % accessible/Frechet
\newcommand{\teetwo}{\ensuremath{T_2}} % separated/Hausdorff
\newcommand{\teetwoandahalf}{\ensuremath{T_{2\frac{1}{2}}}} % Urysohn
\newcommand{\teethree}{\ensuremath{T_3}} % regular Hausdorff


% Options
% =======

\DeclareOption{numberswithinsection}{%
    \counterwithin{theoremcount}{section}
}
\DeclareOption{numberswithinsubsection}{%
    \counterwithin{theoremcount}{subsection}
}
\DeclareOption*{\PackageWarning{naproche}{Unknown ‘\CurrentOption’}}
\ProcessOptions\relax