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README.md

@@ -245,7 +245,7 @@ I sometimes see things like $\cup_{i=1}^{\infty} X_i$ instead of $\bigcup\nolimi
 
 #### Functions
 
-There are lots of functions have their own commands, e.g., $\lg (x)$, $\log (x)$, $\sin (x)$, $\cos (x)$ and so on. Please don't write `lg(x)`, which produces $lg(x)$. Instead, write `\lg(x)` for $\lg(x)$. Similarly, same for `\log(x)`, `\sin(x)`, `\cos(x)` and so on.
+There are lots of functions have their own commands, e.g., $\lg (x)$, $\log (x)$, $\sin (x)$, $\cos (x)$, etc. Please don't write `lg(x)`, which produces $lg(x)$. Instead, write `\lg(x)` for $\lg(x)$. Similarly, same for `\log(x)`, `\sin(x)`, `\cos(x)` and so on.
 
 #### Else