diff --git a/education/math/MATH1210 (calc 1)/Integrals.md b/education/math/MATH1210 (calc 1)/Integrals.md
index 6f2c40f..98360d3 100644
--- a/education/math/MATH1210 (calc 1)/Integrals.md	
+++ b/education/math/MATH1210 (calc 1)/Integrals.md	
@@ -84,5 +84,7 @@ To find the average value of $f(x)$ on the interval $[a, b]$ is given by the for
 Average = $\dfrac{1}{b-a} \int_a^b f(x)dx$ 
 
 # The Fundamental Theorem of Calculus
-Let $f$ be a continuous function on the closed interval $[a, b]$ and let $F$ be any antiderivative of $f$, then:
+1. Let $f$ be a continuous function on the closed interval $[a, b]$ and let $F$ be any antiderivative of $f$, then:
 $$\int_a^b f(x) dx = F(b) - F(a)$$
+2. Let $f$ be a continuous function on $[a, b]$ and let $x$ be a point in $[a, b]$.
+$$ F(x) = \int_a^x f(t)dt \Rightarrow F'(x) = f(x) $$
\ No newline at end of file