Mathematics teacher: Teaching students calculus before they attend university may significantly benefit them.
Evidence
If students are taught calculus ~R → AS before they are ready for the level of abstraction involved, they may abandon the study of mathematics altogether.
Conclusion
If we are going to teach pre- T → R university students calculus, we must make sure they can handle the level of abstraction involved.
Evaluate
The argument assumes that if T → ~AS we are going to teach pre- university students calculus, then we must make sure that they will not abandon the study of it.