In the spring of 2001 and the fall of 2001, i took a calculus II class at a university. I failed the class both times, largely due to troubles with sequences and series. In the spring of 2005, i took an Introduction to Philosophy class at a community college. When i was in the Philosophy class, i learned symbolic logic for the first time. It occurred to me that using symbolic logic might have helped me learn calculus concepts more effectively. Have you ever heard of someone using symbolic logic to teach himself or herself calculus? Have you ever used symbolic logic yourself to learn calculus?