
A: List of Symbols

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• $$\epsilon$$ "Is an element of".
• $$\sim$$ "Is equivalent to", see equivalence relations. Also "is row equivalent to" for matrices.
• $$\mathbb{R}$$ The real numbers.
• $$I_{n}$$ The $$n \times n$$ identity matrix.
• $$P_{n}^{\mathbb{F}}$$ The vector space of polynomials of degree at most $$n$$ with coeficients in the field $$\mathbb{F}$$.
• $$\mathbb{M}_{k}^{r}$$ The vector space of $$r \times k$$ matrices.