fact: Definition mmatch' {A P} (E : Exception) (y : A) (ps : mlist (Tbranch A P)) : gtactic (P y) := fun g => M.mmatch' E (mmap (branch_map y g) ps) y.
imports: Strings.String ssrmatching.ssrmatching Mtac2(Logic Datatypes List Utils Logic intf.Sorts) Strings.String NArith.BinNat NArith.BinNatDef