- Track P (impi r) (pair lleaf (impl a b))
- | track_impe: \forall P,Q,r,D,i. \forall a,b:Formula.
- Track Q r (pair lleaf D) \to
- Insert (pair a b) i P Q \to
- Track P (impe r) (pair (impl a b) D)
-(*
- | track_impe: \forall P,p,q,r,A,B,D,a,b.
- Track P p (pair A (rinj a)) \to
- Track P q (pair (linj b) B) \to
- Track (abst P (pair A B)) r (pair lleaf D) \to
- Track P (impe p q r) (pair (linj (impl a b)) D)
-*)
+ Track P (impr r) (pair lleaf (impl a b))
+ | track_impi: \forall P,p,q,r,A,B,D. \forall a,b:Formula.
+ Track P p (pair A a) \to
+ Track P q (pair b B) \to
+ Track (abst P p q (pair A B)) r (pair lleaf D) \to
+ Track P (impi p q r) (pair (impl a b) D)
+ | track_scut: \forall P,p,q,A,B. \forall c:Formula.
+ Track P p (pair A c) \to
+ Track P q (pair c B) \to
+ Track P (scut p q) (pair A B)