nasty change in the lexer/parser:

[helm.git] / helm / software / matita / contribs / dama / dama_duality / group.ma

diff --git a/helm/software/matita/contribs/dama/dama_duality/group.ma b/helm/software/matita/contribs/dama/dama_duality/group.ma
index 276d409a640c2c068883a3469186801bde43f0bf..4ecd016fb3dd31df85ead1ec01c5508cccc86b1c 100644 (file)
--- a/helm/software/matita/contribs/dama/dama_duality/group.ma
+++ b/helm/software/matita/contribs/dama/dama_duality/group.ma
@@ -44,16 +44,16 @@ record abelian_group : Type ≝
 
 notation "0" with precedence 89 for @{ 'zero }.
 
-interpretation "Abelian group zero" 'zero = (zero _).
+interpretation "Abelian group zero" 'zero = (zero ?).
 
-interpretation "Abelian group plus" 'plus a b = (plus _ a b).
+interpretation "Abelian group plus" 'plus a b = (plus ? a b).
 
-interpretation "Abelian group opp" 'uminus a = (opp _ a).
+interpretation "Abelian group opp" 'uminus a = (opp ? a).
 
 definition minus ≝
  λG:abelian_group.λa,b:G. a + -b.
 
-interpretation "Abelian group minus" 'minus a b = (minus _ a b).
+interpretation "Abelian group minus" 'minus a b = (minus ? a b).
 
 lemma plus_assoc: ∀G:abelian_group.∀x,y,z:G.x+(y+z)≈x+y+z ≝ plus_assoc_. 
 lemma plus_comm: ∀G:abelian_group.∀x,y:G.x+y≈y+x ≝ plus_comm_.