helm/matita/tests/fix_betareduction.ma

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  11 (*        v         GNU General Public License Version 2                  *)
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  14
  15 set "baseuri" "cic:/matita/tests/fix_betareduction/".
  16
  17 alias id "eq" = "cic:/Coq/Init/Logic/eq.ind#xpointer(1/1)".
  18 alias id "n" = "cic:/Suresnes/BDD/canonicite/Canonicity_BDT/n.con".
  19 alias id "nat" = "cic:/Coq/Init/Datatypes/nat.ind#xpointer(1/1)".
  20 theorem a:
  21   (\forall p: nat \to Prop.
  22   \forall n: nat. p n \to p n ) \to (eq nat n n).
  23 intro.
  24 apply (H (\lambda n:nat.(eq nat n n))).
  25 reflexivity.
  26 qed.