]> matita.cs.unibo.it Git - helm.git/blobdiff - helm/software/matita/contribs/LAMBDA-TYPES/LambdaDelta-1/preamble.ma
AMBDA-TYPES: some improvements. subst now fully exploited
[helm.git] / helm / software / matita / contribs / LAMBDA-TYPES / LambdaDelta-1 / preamble.ma
index 97a666fe75c514ded7a9054ceea312cee87e68d1..f9dc333afbf05ee7b87861c9fb189e898a7fe489 100644 (file)
@@ -40,7 +40,3 @@ alias id "plus_lt_le_compat" = "cic:/Coq/Arith/Plus/plus_lt_le_compat.con".
 alias id "plus_n_O" = "cic:/Coq/Init/Peano/plus_n_O.con".
 alias id "plus_Snm_nSm" = "cic:/Coq/Arith/Plus/plus_Snm_nSm.con".
 alias id "S_pred" = "cic:/Coq/Arith/Lt/S_pred.con".
-
-theorem trans_eq : \forall A:Type. \forall x,y,z:A. x=y \to y=z \to x=z.
- intros. transitivity y; assumption.
-qed.