A Modal Logic Analog of Smullyan's Fundamental Theorem.Published in:Mathematical Logic Quarterly, 1973, v. 19, n. 1, p. 1, doi. 10.1002/malq.19730190102By:Fitting, MelvinPublication type:Article
Masthead.Published in:Mathematical Logic Quarterly, 1973, v. 19, n. 1, p. fmi, doi. 10.1002/malq.19730190101Publication type:Article