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15 include "lambda/terms/term.ma".
17 include "lambda/notation/functions/annotatedabstraction_2.ma".
19 (* ITERATED ABSTRACTION *****************************************************)
21 let rec abst d M on d ≝ match d with
26 interpretation "iterated abstraction (term)"
27 'AnnotatedAbstraction d M = (abst d M).
29 lemma abst_plus: ∀A,m,n. 𝛌m+n.A = 𝛌m.𝛌n.A.
30 #A #m elim m -m normalize //