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Substitution Frege and extended Frege proof systems in non-classical logics
- 1.JEŘÁBEK, E. Substitution Frege and extended Frege proof systems in non-classical logics. Annals of Pure and Applied Logic. 2009, 159(2), 1-48. ISSN 0168-0072. E-ISSN 1873-2461.
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