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4 (* ||A|| A project by Andrea Asperti *)
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7 (* ||T|| The HELM team. *)
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15 include "delayed_updating/syntax/path.ma".
16 include "delayed_updating/notation/functions/class_g_0.ma".
17 include "ground/lib/subset.ma".
19 (* GUARD CONDITION FOR PATH *************************************************)
21 inductive pgc: predicate path ā
22 | pgc_empty: (š) Ļµ pgc
23 | pgc_L_dx (p): pāš Ļµ pgc
27 "guard condition (path)"