Well-established dependently-typed languages like Coq provide a highly reliable way to build and check formal proofs. Researchers have also developed several other dependently-typed programming languages such as Agda, Aura, ATS, Cayenne, Epigram, F*, F7, Fine, Guru, PCML5, Ur, etc., and more are in the works, e.g., Trellys. All these languages shine in their own regard, but they lag behind Coq in