deletions | additions       diff --git a/bits2.tex b/bits2.tex  index 614a521..90b5bd6 100644  --- a/bits2.tex  +++ b/bits2.tex 
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\emph{over the field of bits})  is any expression of the form $a_0+a_1x+a_2x^2+...+a_nx^n$, where $a_0,...,a_n \in \Fb$ are  bits and $x^i, i=0,...n$ are terms.\\  For example, $x+x^5$ and $x^3+x^{10}+x^{21}$ are polynomials over $\Fb$, while $\frac{1}{2}x+\frac{2}{11}x^{10}$ $\frac{1}{2}x+\frac{2}{11}x^{10}-x^{11}$  is not.  \\  \medskip