initial definition of λδ model

[helm.git] / matita / matita / contribs / lambdadelta / apps_2 / notation / models / at_3.ma

diff --git a/matita/matita/contribs/lambdadelta/apps_2/notation/models/at_3.ma b/matita/matita/contribs/lambdadelta/apps_2/notation/models/at_3.ma
new file mode 100644 (file)
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+++ b/matita/matita/contribs/lambdadelta/apps_2/notation/models/at_3.ma
@@ -0,0 +1,27 @@
+(**************************************************************************)
+(*       ___                                                              *)
+(*      ||M||                                                             *)
+(*      ||A||       A project by Andrea Asperti                           *)
+(*      ||T||                                                             *)
+(*      ||I||       Developers:                                           *)
+(*      ||T||         The HELM team.                                      *)
+(*      ||A||         http://helm.cs.unibo.it                             *)
+(*      \   /                                                             *)
+(*       \ /        This file is distributed under the terms of the       *)
+(*        v         GNU General Public License Version 2                  *)
+(*                                                                        *)
+(**************************************************************************)
+
+(* NOTATION FOR THE "models" COMPONENT **************************************)
+
+notation < "hvbox( d1 @ break d2 )"
+  right associative with precedence 47
+  for @{ 'At $M $d1 $d2 }.
+
+notation > "hvbox( d1 @ break d2 )"
+  right associative with precedence 47
+  for @{ 'At ? $d1 $d2 }.
+
+notation > "hvbox( d1 @{ break term 46 M } break term 46 d2 )"
+  non associative with precedence 47
+  for @{ 'At $M $d1 $d2 }.