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education/math/MATH1210 (calc 1)/Limits.md

@@ -23,7 +23,8 @@ A function is continuous if their graph can be traced with a pencil without lift
 
 Formally, a function $f$ is continuous at a point $a$ if:
 - $f(a)$ is defined
-- $\lim{x\rarrow}$ 
+- $\lim_{x \to a} f(x)$  exists
+- $\lim_{x \to a} = f(a)$
 
 # Definitions