-definition SAT2 ≝ λ(P:?→Prop). ∀F,A,B,l. P B → P A →
- P (Appl F[0:=A] l) → P (Appl (Lambda B F) (A::l)).
+definition CR1 ≝ λ(P:?→Prop). ∀M. P M → SN M.
+
+definition SAT0 ≝ λ(P:?→Prop). ∀n,l. SNl l → P (Appl (Sort n) l).
+
+definition SAT1 ≝ λ(P:?->Prop). ∀i,l. SNl l → P (Appl (Rel i) l).
+
+definition SAT2 ≝ λ(P:?→Prop). ∀N,L,M,l. SN N → SN L →
+ P (Appl M[0:=L] l) → P (Appl (Lambda N M) (L::l)).