Anderson John M <br/><br/>
Natural deduction    the logical basis of axiom systems 
Anderson John M; Johnstone Henry W 
 -  1962 
<br/><br/><label>Standard No.: </label>17,642 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PHILOSOPHY
<br/><br/><label>Dewey Class. No.: </label>R12, K2