31 lines
667 B
TeX
31 lines
667 B
TeX
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\documentclass{report}
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\input{../preamble}
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\newcommand{\lean}[2]{\leanref{../#1.html\##2}{#2}}
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\newcommand{\leanPretty}[3]{\leanref{../#1.html\##2}{#3}}
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\begin{document}
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\header
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{A Mathematical Introduction to Logic}
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{Herbert B. Enderton}
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\tableofcontents
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% Sets first chapter to `0` to match Enderton book.
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\setcounter{chapter}{0}
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\addtocounter{chapter}{-1}
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\chapter{Useful Facts About Sets}%
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\label{chap:useful-facts-about-sets}
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\section{\unverified{Lemma 0A}}%
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\label{sec:lemma-0a}
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Assume that $\langle x_1, \ldots, x_m \rangle =
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\langle y_1, \ldots, y_m, \ldots, y_{m+k} \rangle$.
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Then $x_1 = \langle y_1, \ldots, y_{k+1} \rangle$.
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\end{document}
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