X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambda_delta%2FBasic_2%2Fgrammar%2Fterm_simple.ma;h=557299afd7f4176ac394a29c3dc79e708395302b;hb=70ac3a792389497103fb80b5a1a144706addb7cb;hp=8f7c70374a92d17368d12cd7bd9242be881b2a15;hpb=126a6494e5cee474680ca747795c02613a1c08ac;p=helm.git

diff --git a/matita/matita/contribs/lambda_delta/Basic_2/grammar/term_simple.ma b/matita/matita/contribs/lambda_delta/Basic_2/grammar/term_simple.ma
index 8f7c70374..557299afd 100644
--- a/matita/matita/contribs/lambda_delta/Basic_2/grammar/term_simple.ma
+++ b/matita/matita/contribs/lambda_delta/Basic_2/grammar/term_simple.ma
@@ -25,12 +25,12 @@ interpretation "simple (term)" 'Simple T = (simple T).
 
 (* Basic inversion lemmas ***************************************************)
 
-fact simple_inv_bind_aux: ∀T. 𝕊[T] → ∀J,W,U. T = ⓑ{J} W. U → False.
+fact simple_inv_bind_aux: ∀T. 𝐒[T] → ∀J,W,U. T = ⓑ{J} W. U → False.
 #T * -T
 [ #I #J #W #U #H destruct
 | #I #V #T #J #W #U #H destruct
 ]
 qed.
 
-lemma simple_inv_bind: ∀I,V,T. 𝕊[ⓑ{I} V. T] → False.
+lemma simple_inv_bind: ∀I,V,T. 𝐒[ⓑ{I} V. T] → False.
 /2 width=6/ qed-.