new instantiate, only known bug is w.r.t. in/out scope and file matita/contribs/ng_as...

[helm.git] / helm / software / components / ng_paramodulation / terms.mli

diff --git a/helm/software/components/ng_paramodulation/terms.mli b/helm/software/components/ng_paramodulation/terms.mli
index 47295035ca47e7196beb616887c4d98cccbb7a5c..0146dba2c6865ef1c60b7930d9d84fe1b5aa234a 100644 (file)
--- a/helm/software/components/ng_paramodulation/terms.mli
+++ b/helm/software/components/ng_paramodulation/terms.mli
@@ -18,7 +18,7 @@ type 'a foterm =
 
 type 'a substitution = (int * 'a foterm) list
 
-type comparison = Lt | Eq | Gt | Incomparable
+type comparison = Lt | Eq | Gt | Incomparable | Invertible
 
 type rule = Superposition | Demodulation