Mark Jago. The Content of Deduction. J. Philosophical Logic, 42(2):317-334, 2013. [doi]
@article{Jago13, title = {The Content of Deduction}, author = {Mark Jago}, year = {2013}, doi = {10.1007/s10992-011-9222-2}, url = {http://dx.doi.org/10.1007/s10992-011-9222-2}, researchr = {https://researchr.org/publication/Jago13}, cites = {0}, citedby = {0}, journal = {J. Philosophical Logic}, volume = {42}, number = {2}, pages = {317-334}, }