Beginning logic /
Lemmon, E. J.
Beginning logic / E. J. Lemmon. - x, 225 p. ;
Includes index.
0915144506
Propositional calculus.
Predicate calculus.
QA 3 LEM 1978
Beginning logic / E. J. Lemmon. - x, 225 p. ;
Includes index.
0915144506
Propositional calculus.
Predicate calculus.
QA 3 LEM 1978