An introduction to modal logic
Hughes, G. E. 1918-
An introduction to modal logic [by] G. E. Hughes [and] M. J. Cresswell. - London, Methuen [1972, c1968] - x, 388 p. 22 cm. - University paperbacks, 431 .
"Distributed in the U.S.A. by Barnes and Noble, Inc."
Bibliography: p. [356]-371.
041629460X
Modality (Logic)
160 / HUI 1982
An introduction to modal logic [by] G. E. Hughes [and] M. J. Cresswell. - London, Methuen [1972, c1968] - x, 388 p. 22 cm. - University paperbacks, 431 .
"Distributed in the U.S.A. by Barnes and Noble, Inc."
Bibliography: p. [356]-371.
041629460X
Modality (Logic)
160 / HUI 1982