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4 (* ||A|| A project by Andrea Asperti *)
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7 (* ||T|| The HELM team. *)
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15 include "basic_2/static/ssta_aaa.ma".
16 include "basic_2/unwind/sstas.ma".
18 (* ITERATED STRATIFIED STATIC TYPE ASSIGNMENT FOR TERMS *********************)
20 (* Properties on atomic arity assignment for terms **************************)
22 lemma sstas_aaa: ∀h,g,L,T,U. ⦃h, L⦄ ⊢ T •*[g] U →
23 ∀A. L ⊢ T ⁝ A → L ⊢ U ⁝ A.
24 #h #g #L #T #U #H @(sstas_ind_dx … H) -T // /3 width=6/