fact: Definition gtactic@{a g1 g2} (A: Type@{a}) := goal@{g1 g2} gs_open -> M.t@{a} (mlist@{a} (mprod@{a Set} A (goal@{g1 g2} gs_any))).
imports: Strings.String ssrmatching.ssrmatching Mtac2(Logic Datatypes List Utils Logic intf.Sorts) Strings.String NArith.BinNat NArith.BinNatDef