Hilpinen, Risto. <br/><br/>
Rules of acceptance and inductive logic / 
Risto Hilpinen. 
 - Amsterdam :  North-Holland Pub. Co.,  1968. 
 - 136 p.  25 cm. 
 - Acta philosophica Fennica,  Fasc. 22 .
<br/><br/>Bibliography: p. [123]-129. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic