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\textit{Oh, an empty article!} \documentclass[10pt,a4paper]{article}  \usepackage[utf8]{inputenc}  \usepackage{amsmath}  \usepackage{amsfonts}  \usepackage{amssymb}  \begin{document}  \section{Chapter 1 solution} \\  4) a) converse:"I will ski tomorrow only if it snows today"\\  Contrapositive:"If i don't ski tomorrow, then it will not have snowed today."\\  b) Converse:"I come to class only if there going to be a quiz"\\  Contrapositive:"If i don't come to class, then there won't be a quiz"\\  c) Converse:"A positive integer is a prime if it has no divisors other than 1 and itself"  Contrapositive:"If a positive integer has a divisor other than 1 and itself, then it is not prime"\\  8) \begin{table}   \begin{tabular}{ c c c c c c }  p & q & p$\wedge$q & (p$\wedge$q)$\rightarrow$p & p$\vee$q & p$\rightarrow$(p$\vee$q) \\   & & & & & \\   & & & & & \\   & & & & & \\   & & & & & \\   \end{tabular}   \end{table}  You can get started by \textbf{double clicking} this text block and begin editing. You can also click the \textbf{Text} button below to add new block elements. Or you can \textbf{drag and drop an image} right onto this text. Happy writing! \end{document}