Explain why we create classes in R1 and generic functions in R2.
Explain why we create classes in R1 and generic functions in R2.

vtomole/SICL,clasp-developers/SICL,clasp-developers/SICL,vtomole/SICL,clasp-developers/SICL,clasp-developers/SICL,vtomole/SICL,vtomole/SICL