matita/matita/contribs/lambda-delta/Basic-2/reduction/cpr_lift.ma

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   3 (*      ||M||                                                             *)
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  14
  15 include "Basic-2/reduction/tpr_lift.ma".
  16 include "Basic-2/reduction/cpr.ma".
  17
  18 (* CONTEXT-SENSITIVE PARALLEL REDUCTION ON TERMS ****************************)
  19
  20 (* Relocation properties ****************************************************)
  21
  22 (* Basic-1: was: pr2_lift *)
  23
  24 (* Basic-1: was: pr2_gen_lift *)
  25
  26 (* Advanced inversion lemmas ************************************************)
  27
  28 (* Basic-1: was: pr2_gen_abst *)
  29 lemma cpr_inv_abst1: ∀V1,T1,U2. 𝕔{Abst} V1. T1 ⇒ U2 →
  30                      ∃∃V2,T2. V1 ⇒ V2 & T1 ⇒ T2 & U2 = 𝕔{Abst} V2. T2.
  31 /2/ qed.