File:Example for syntactic unification without occurs check leading to infinite tree.pdf

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English: An example run of the algorithm from en:Unification (computer science)#A_unification_algorithm, however without ist 6th rule (occurs check rule), leading to a circular tree, i.e. an infinite term.
Date
Source Own work
Author Jochen Burghardt
Other versions File:Example for syntactic unification without occurs check leading to infinite tree svg.svg
LaTeX source code 
 \documentclass[12pt]{article}
 \usepackage[pdftex]{color}
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 \setlength{\topmargin}{-36mm}
 \setlength{\textwidth}{100mm}
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 % foreground
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 \definecolor{cM}       {rgb}{0.00,0.00,0.00}   % meta symbols

 % background
 \definecolor{cEB}      {rgb}{0.95,0.95,0.95}   % eqn
 \definecolor{cLB}      {rgb}{0.90,0.99,0.90}   % left branch
 \definecolor{cRB}      {rgb}{0.90,0.90,0.99}   % right
 %\definecolor{cTB}     {rgb}{0.30,0.30,0.30}   % tree tip

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 \textcolor{cM}{\put(30,230){\makebox(0,0){$\stackrel{?}{=}$}}}%
 % lhs
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 % rhs level 0-1
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 \textcolor{cR}{\put(60,100){\makebox(0,0){cons}}}%
 % rhs level 1-2
 \textcolor{cLB}{\put(50,80){\makebox(0,0){\rule{1em}{3ex}}}}%
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 % rhs level 2-3
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 % rhs level 1-2
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 \end{picture}

 \end{document}

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current18:11, 7 November 2013Thumbnail for version as of 18:11, 7 November 2013583 × 1,452 (15 KB)Jochen Burghardt (talk | contribs)User created page with UploadWizard

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