matita/matita/contribs/lambdadelta/basic_2A/examples/ex_sta_ldec.ma

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  14
  15 include "basic_2A/unfold/lstas.ma".
  16
  17 (* EXAMPLES *****************************************************************)
  18
  19 (* Static type assignment (iterated vs primitive): the declared variable ****)
  20
  21 (* basic_1: we have "L.ⓛⓝ⋆k1.⋆k2⦄ ⊢ #0 • ⓝ⋆k1.⋆k2". *)
  22 theorem sta_ldec: ∀h,G,L,k1,k2. ⦃G, L.ⓛⓝ⋆k1.⋆k2⦄ ⊢ #0 •*[h, 1] ⋆k2.
  23 /3 width=6 by lstas_sort, lstas_succ, lstas_cast, drop_pair/ qed-.