added 2 more

Author: NullDev

src/util/mathFact.js

@@ -151,6 +151,8 @@ const facts = [
     "Laplace transforms turn differential equations into algebraic equations.",
     "The derivative of an odd function is an even function.",
     "A matrix and its transpose have the same rank.",
+    "A midpoint convex function is not necessarily convex, but a strictly midpoint convex function is strictly convex.",
+    "A set is convex iff its indicator function is a convex function. (Indicator function is infinite off the set.)",
 ];
 
 /**