matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpue.ma

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  14
  15 include "basic_2/notation/relations/prediteval_5.ma".
  16 include "basic_2/rt_transition/cnu.ma".
  17 include "basic_2/rt_computation/cpms.ma".
  18
  19 (* EVALUATION FOR T-UNBOUND RT-TRANSITION ON TERMS **************************)
  20
  21 definition cpue (h) (G) (L): relation2 term term ≝
  22            λT1,T2. ∃∃n. ⦃G,L⦄ ⊢ T1 ➡*[n,h] T2 & ⦃G,L⦄ ⊢ ⥲[h] 𝐍⦃T2⦄.
  23
  24 interpretation "evaluation for t-unbound context-sensitive parallel rt-transition (term)"
  25    'PRedITEval h G L T1 T2 = (cpue h G L T1 T2).