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2. Abel, A., Coquand, T.: Untyped algorithmic equality for Martin-Löf’s logical framework with surjective pairs. Fundam. Inform. 77(4), 345–395 (2005); TLCA 2005 special issue
3. Altenkirch, T., Chapman, J.: Big step normalisation. Draft, available on the authors’ homepages (2008)
4. Abel, A., Coquand, T., Dybjer, P.: Normalization by evaluation for Martin-Löf Type Theory with typed equality judgements. In: Proc. of the 22nd IEEE Symp. on Logic in Computer Science (LICS 2007), pp. 3–12. IEEE Computer Soc. Press, Los Alamitos (2007)
5. Abel, A., Coquand, T., Dybjer, P.: A semantic βη-equality algorithm for Martin-Löf Type Theory (extended version). Technical report, Ludwig-Maximilians-University Munich (2008), http://www.tcs.ifi.lmu.de/~abel/semEqTR.pdf