Wrote out chapters 2-4
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for $1 \leq i \leq m$ and $1 \leq j \leq n$.
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\end{definition}
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\begin{definition}
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\begin{definition}\label{Definition 1.7}
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\hfill\\
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Let $S$ be any nonempty set and $\F$ be any field, and let $\mathcal{F}(S, \F)$ denote the set of all functions from $S$ to $\F$. Two functions $f$ and $g$ in $\mathcal{F}(S, \F)$ are called \textbf{equal} if $f(s) = g(s)$ for each $s \in S$. The set $\mathcal{F}(S, \F)$ is a vector space with the operations of addition and scalar multiplication defined for $f,g \in \mathcal{F}(S, \F)$ and $c \in \F$ defined by
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