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1 (**************************************************************************)
2 (*       ___                                                              *)
3 (*      ||M||                                                             *)
4 (*      ||A||       A project by Andrea Asperti                           *)
5 (*      ||T||                                                             *)
6 (*      ||I||       Developers:                                           *)
7 (*      ||T||         The HELM team.                                      *)
8 (*      ||A||         http://helm.cs.unibo.it                             *)
9 (*      \   /                                                             *)
10 (*       \ /        This file is distributed under the terms of the       *)
11 (*        v         GNU General Public License Version 2                  *)
12 (*                                                                        *)
13 (**************************************************************************)
14
15 (* NOTATION FOR THE LAMBDA CALCULUS *******************************************)
16
17 (* equivalences *)
18
19 notation "hvbox(a break ≅ b)" 
20   non associative with precedence 45
21   for @{'Eq $a $b}.
22
23 (* lifting, substitution *)
24
25 notation "hvbox(M break [ l ])"
26    non associative with precedence 90
27    for @{'Subst1 $M $l}.
28
29 (* evaluation, interpretation *)
30
31 notation "hvbox(〚term 90 T〛)"
32    non associative with precedence 50
33    for @{'Eval $T}.
34
35 notation "hvbox(〚term 90 T〛 break _ [term 90 E])"
36    non associative with precedence 50
37    for @{'Eval1 $T $E}.
38
39 notation "hvbox(〚term 90 T〛 break _ [term 90 E1 break , term 90 E2])"
40    non associative with precedence 50
41    for @{'Eval2 $T $E1 $E2}.