matita/matita/contribs/lambdadelta/ground/relocation/nstream_id.ma

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  14
  15 include "ground/notation/functions/identity_0.ma".
  16 include "ground/relocation/rtmap_eq.ma".
  17
  18 (* RELOCATION N-STREAM ******************************************************)
  19
  20 corec definition id: rtmap ≝ ⫯id.
  21
  22 interpretation "identity (nstream)"
  23    'Identity = (id).
  24
  25 (* Basic properties *********************************************************)
  26
  27 lemma id_rew: ⫯𝐈𝐝 = 𝐈𝐝.
  28 <(stream_rew … (𝐈𝐝)) in ⊢ (???%); normalize //
  29 qed.
  30
  31 lemma id_eq_rew: ⫯𝐈𝐝 ≡ 𝐈𝐝.
  32 cases id_rew in ⊢ (??%); //
  33 qed.