1. Allen, S., et al.: Innovations in computational type theory using nuprl. J. Appl. Log. 4(4), 428–469 (2006)
2. Allen, S.: A Non-type-theoretic Semantics for Type-theoretic Language. Ph.D. thesis, Cornell University (1987)
3. Constable, R., et al.: Implementing Mathematics with the Nuprl Development System. Prentice-Hall (1986)
4. Coq Development Team: The Coq Proof Assistant: Reference Manual. Technical report, INRIA (2015)
5. Lecture Notes in Computer Science (Lecture Notes in Artificial Intelligence);L de Moura,2015