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      <record key="001" att1="001" value="IHS100249905" att2="IHS100249905">001   IHS100249905</record>
      <field key="037" subkey="x">englisch</field>
      <field key="050" subkey="x">Buch</field>
      <field key="076" subkey="">Formalwissenschaft</field>
      <field key="100" subkey="">hintikka, k. jaakko j.</field>
      <field key="331" subkey="">distributive normal forms in the calculus of predicates</field>
      <field key="403" subkey="">1. ed.</field>
      <field key="410" subkey="">helsinki</field>
      <field key="412" subkey="">societas philosophica</field>
      <field key="425" subkey="">1953</field>
      <field key="433" subkey="">71 pp.</field>
      <field key="451" subkey="">acta philosophica fennica; fasc. vi (1953)</field>
      <field key="451" subkey="i">societas philosophica, helsinki (ed.)</field>
      <field key="517" subkey="c">from the table of contents: introduction; the calculs of predicates; normal forms of the sentential calculs. the notations ...;</field>
      <field key="the" subkey="">distributive normal forms; properties of the distributive normal forms; the kernels and their properties; identity and the</field>
      <field key="dis" subkey="t">ributive normal forms;</field>
      <field key="544" subkey="">1234-A</field>
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