matita/matita/contribs/lambda_delta/Basic_2/computation/csn.ma

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  14
  15 include "Basic_2/reducibility/cpr.ma".
  16 include "Basic_2/computation/acp.ma".
  17
  18 (* CONTEXT-SENSITIVE STRONGLY NORMALIZING TERMS *****************************)
  19
  20 definition csn: lenv → predicate term ≝ λL. SN … (cpr L) (eq …).
  21
  22 interpretation
  23    "context-sensitive strong normalization (term)"
  24    'SN L T = (csn L T).
  25
  26 (* Basic properties *********************************************************)
  27
  28 axiom csn_acp: acp cpr (eq …) (csn …).