@inproceedings{Mossakowski02b, abstract = {In order to obtain a semantic foundation for heterogeneous specification, we extend Diaconescu's morphism-based Grothendieck institutions to the case of comorphisms. This is not just a dualization, because we obtain more general results, especially concerning amalgamation properties. We also introduce a proof calculus for structured heterogeneous specifications and study its soundness and completeness (where amalgamation properties play a role for obtaining the latter).}, added-at = {2016-08-05T15:59:03.000+0200}, author = {Mossakowski, T.}, biburl = {https://www.bibsonomy.org/bibtex/243add86d97a908a4f1b606060b035edd/tillmo}, booktitle = {Mathematical foundations of computer science}, editor = {Diks, K. and Rytter, W.}, interhash = {674dcfccee11603d2b23eab7bf8d3d86}, intrahash = {43add86d97a908a4f1b606060b035edd}, keywords = {imported}, pages = {593--604}, psurl = {http://www.informatik.uni-bremen.de/~till/papers/grothendieck.ps}, publisher = {Springer Verlag, London}, series = {Lecture Notes in Computer Science}, status = {Reviewed}, timestamp = {2016-08-05T15:59:03.000+0200}, title = {Comorphism-based {G}rothendieck logics}, url = {http://www.springerlink.com/(bt4qw245oavupgzdxw3zpuul)/app/home/contribution.asp?referrer=parent&backto=searchcitationsresults,1,1;}, volume = 2420, year = 2002 }