l: abstraction
n: native type annotation
-NAMING CONVENTIONS FOR TRANSFORMATIONS
+NAMING CONVENTIONS FOR TRANSFORMATIONS AND RELATED FORMS
- first letter
-second letter
-p: parallel
-s: sequential
+i: irreducible form
+n: normal form
+p: parallel transformation
+r: reducible form
+s: sequential transformation
- third letter
- forth letter (if present)
-p: non-reflexive transitive closure
-q: reflexive closure
-s: reflexive transitive closure
+p: non-reflexive transitive closure (plus)
+q: reflexive closure (question)
+s: reflexive transitive closure (star)