-interpretation "local reference (term)"
- 'SnLRef i T = (TUnit (LRef i) T).
-
-interpretation "global reference (term)"
- 'SnGRef l T = (TUnit (GRef l) T).
-
-interpretation "negative abbreviation (term)"
- 'SnAbbrNeg T = (TUnit Decl T).
-
-interpretation "positive abstraction (term)"
- 'SnAbstPos T1 T2 = (TPair Abst T1 T2).
-
-interpretation "abbreviation (term)"
- 'SnAbbr p T1 T2 = (TPair (Abbr p) T1 T2).
-
-interpretation "positive abbreviation (term)"
- 'SnAbbrPos T1 T2 = (TPair (Abbr true) T1 T2).
-
-interpretation "negative abbreviation (term)"
- 'SnAbbrNeg T1 T2 = (TPair (Abbr false) T1 T2).
-
-interpretation "projection (term)"
- 'SnProj p T1 T2 = (TPair (Proj p) T1 T2).
-
-interpretation "positive projection (term)"
- 'SnProjPos T1 T2 = (TPair (Proj true) T1 T2).
-
-interpretation "negative projection (term)"
- 'SnProjNeg T1 T2 = (TPair (Proj false) T1 T2).