diff options
Diffstat (limited to 'library/numbers.tex')
| -rw-r--r-- | library/numbers.tex | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/library/numbers.tex b/library/numbers.tex index b7de307..73eefc8 100644 --- a/library/numbers.tex +++ b/library/numbers.tex @@ -718,7 +718,7 @@ Laws of the order on the reals \end{proof} \begin{lemma}\label{reals_minus} - Assume $x,y \in \reals$. If $x \rminus y = \zero$ then $x=y$. + Assume $x,y \in \reals$. If $x - y = \zero$ then $x=y$. \end{lemma} \begin{proof} Omitted. @@ -803,7 +803,7 @@ Laws of the order on the reals \end{definition} \begin{definition}\label{realsplus} - $\realsplus = \reals \setminus \realsminus$. + $\realsplus = \{r \in \reals \mid r > \zero\}$. \end{definition} \begin{definition}\label{epsilon_ball} |