Principles-for-definitions:.md

@@ -15,11 +15,9 @@ Consider, as a first example, Aristotle’s own definition of “human”:
 - human = def. an animal that is rational 
 
 Other examples:
-✅: A mammal is a vertebrate that has hair, gives live birth, and nurses its young.
-
-❌ A mammal is a vertebrate like, a cat, dog, or whale.
-
-❌ Mammals nurse their young.
+- ✅ Right: A mammal is a vertebrate that has hair, gives live birth, and nurses its young.
+- ❌Wrong: A mammal is a vertebrate like, a cat, dog, or whale.
+- ❌Wrong: Mammals nurse their young.
 
 
 **3."Use essential features in defining terms."**