matita/matita/contribs/lambdadelta/basic_1/C/defs.ma

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  15 (* This file was automatically generated: do not edit *********************)
  16
  17 include "basic_1/T/defs.ma".
  18
  19 inductive C: Type[0] \def
  20 | CSort: nat \to C
  21 | CHead: C \to (K \to (T \to C)).
  22
  23 rec definition cweight (c: C) on c: nat \def match c with [(CSort _)
  24 \Rightarrow O | (CHead c0 _ t) \Rightarrow (plus (cweight c0) (tweight t))].
  25
  26 definition clt:
  27  C \to (C \to Prop)
  28 \def
  29  \lambda (c1: C).(\lambda (c2: C).(lt (cweight c1) (cweight c2))).
  30
  31 definition cle:
  32  C \to (C \to Prop)
  33 \def
  34  \lambda (c1: C).(\lambda (c2: C).(le (cweight c1) (cweight c2))).
  35
  36 rec definition CTail (k: K) (t: T) (c: C) on c: C \def match c with [(CSort
  37 n) \Rightarrow (CHead (CSort n) k t) | (CHead d h u) \Rightarrow (CHead
  38 (CTail k t d) h u)].
  39